National 158 (MDB Board) Snack Machine

National Vendors 158 MDB Board Snack Machine – Refurbished Commercial Snack Vending Machine

The National Vendors 158 MDB Board Snack Machine is a full-size commercial vending machine built for selling a wide range of popular snacks. It combines a proven National Vendors cabinet with modern vending features such as an MDB control board, DEX support, and the ability to add a compatible cashless payment system.

This refurbished snack machine is a practical choice for vending operators, businesses, offices, warehouses, schools, apartment communities, and other locations that need dependable self-service snack sales.

The National 158 offers six shelves and approximately 28 to 32 selections, depending on the machine configuration. Its flexible product layout gives operators room for chips, candy, cookies, crackers, pastries, and many other packaged snacks.

The machine also features an attractive Executive Black finish. This gives it a clean and professional appearance that works well in many commercial locations.

Most important, this model uses an MDB PC board. MDB support makes the National 158 more useful for operators who want a commercial snack machine that can work with compatible modern vending payment equipment.

This machine is sold as a refurbished vending machine. It provides an affordable way to add a full-size commercial snack vendor to a new or existing vending route without buying a brand-new machine.

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National Vendors 158 Snack Machine at a Glance

• Manufacturer: National Vendors
• Model: National 158
• Machine Type: Commercial snack vending machine
• Condition: Refurbished
• Finish: Executive Black
• Shelves: 6 shelves
• Selections: Approximately 28 to 32 selections
• Capacity: Approximately 300 to 400 items
• Snack Configuration: Dual spiral snack dispensing
• Machine Width: 4-wide snack machine
• Control System: MDB PC board
• Data Support: DEX protocol
• Cashless Capability: Credit card reader capable with compatible equipment
• Coin Acceptance: 3-tube coin mechanism configuration
• Bill Acceptance: $1 bill acceptance configuration
• Dimensions: Approximately 72" H x 34" W x 35" D
• Listed Weight: Approximately 685 lbs.
• SKU: A-S158UBV

Because this is refurbished equipment, cosmetic appearance and some installed components can vary from machine to machine. Always review the current product photos and order details when purchasing.

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Why Choose a National Vendors 158 Snack Machine?

A vending machine needs to do more than look good. It needs to hold enough products, offer useful selections, accept customer payments, and operate reliably in a commercial setting.

The National Vendors 158 was designed around those needs.

It offers a large cabinet without requiring the extreme width of some larger vending equipment. Its six-shelf layout gives operators plenty of space for a balanced snack menu.

The machine can be used for everyday vending favorites such as:

• Potato chips
• Tortilla chips
• Pretzels
• Popcorn
• Crackers
• Cookies
• Candy bars
• Chocolate
• Granola bars
• Protein bars
• Fruit snacks
• Pastries
• Gum
• Mints
• Other packaged vending products

That product flexibility can help operators serve many types of customers from one machine.

Full-Size Commercial Snack Vending

The National 158 is not a small countertop vendor. It is a full-size commercial snack machine designed for real vending locations.

That difference matters.

A full-size snack machine can carry more products and more selections. This may reduce how often an operator needs to visit a location for restocking.

More capacity also makes it easier to stock both fast-selling products and slower specialty items.

For example, an operator might dedicate several columns to high-volume products such as chips and candy while using other selections for healthier snacks, pastries, crackers, or premium products.

This creates a better product mix without requiring several separate snack machines.

Six Shelves for a Flexible Product Mix

The National Vendors 158 includes six shelves. This creates a useful balance between product variety and overall capacity.

Different snack packages have different shapes.

A bag of chips needs more vertical room than a candy bar. A pastry may require a different spiral setup than a small package of cookies.

A multi-shelf commercial vending machine gives the operator more flexibility when building the product plan.

You can use different shelves for different product groups.

Example Snack Shelf Layout

• Top shelf: Large chip bags and premium snacks
• Second shelf: Chips, popcorn, and pretzels
• Third shelf: Cookies and crackers
• Fourth shelf: Candy and chocolate
• Fifth shelf: Granola bars, protein bars, and healthier snacks
• Bottom shelf: Pastries and other packaged products

This is only an example. Actual product placement should be based on the spiral sizes, shelf spacing, package dimensions, and buying habits at your location.

Approximately 28 to 32 Snack Selections

The National 158 can provide approximately 28 to 32 selections, depending on configuration.

That gives operators enough space to build a varied snack menu.

Variety is important because every location is different.

An office may sell more granola bars, nuts, crackers, and light snacks. A warehouse may have stronger demand for chips, candy, pastries, and filling snacks.

A school or recreation location may have its own product requirements.

With up to approximately 32 selections, operators have room to test products and adjust the mix based on actual sales.

You do not need every selection to carry a different product.

If one item sells much faster than the others, multiple columns can often be used for that item. This increases capacity for popular products and can reduce sold-out conditions between service visits.

Approximately 300 to 400 Item Capacity

The listed capacity for the National Vendors 158 is approximately 300 to 400 items.

Actual capacity will depend on the products being sold and how the shelves are configured.

Small candy products use less room than large bags of chips. Large pastries and bulky snack packages may also reduce the number of products that fit in the machine.

This is why vending machine capacity should be treated as an approximate figure rather than a guaranteed number for every product mix.

Even so, the National 158 provides the capacity expected from a commercial snack vendor.

That can be especially useful on a vending route because service time matters.

A machine that holds more inventory may allow an operator to make fewer refill trips when sales volume and product shelf life permit.

Dual Spiral Snack Dispensing

The National 158 is configured with dual spiral snack dispensing.

Spiral vending is one of the most familiar systems used in traditional snack machines.

Products are placed between the coils of a spiral. When a customer makes a purchase, the selected spiral rotates and moves the product forward until it drops into the delivery area.

Dual spiral configurations can be useful for certain wider or less stable snack packages.

The correct spiral setup is important for reliable vending.

Operators should match the product to the proper column and coil spacing. Products should move freely without being packed too tightly.

Products Commonly Used in Spiral Snack Machines

• Bagged chips
• Cookies
• Crackers
• Pretzels
• Popcorn
• Candy bars
• Granola bars
• Protein bars
• Pastries
• Fruit snacks
• Packaged nuts
• Other shelf-stable packaged snacks

Not every package will work in every spiral. Product testing is recommended whenever you introduce a new package size.

MDB PC Board

One of the most important features of this National 158 is its MDB PC board.

MDB stands for Multi-Drop Bus. It is a widely used communication standard in commercial vending equipment.

In simple terms, MDB allows compatible vending components to communicate with the machine controller.

This can include equipment such as:

• Coin mechanisms
• Bill validators
• Compatible cashless payment devices
• Other supported vending peripherals

For vending operators, MDB capability is valuable because payment technology has changed greatly over the years.

Customers increasingly expect more than coins and dollar bills.

A machine with suitable electronics gives an operator more options when planning payment upgrades.

Credit Card Reader Capable

The National Vendors 158 listed here is credit card reader capable.

This is an important feature, but it is also important to understand exactly what the term means.

Credit card capable does not mean that a credit card reader is included with the machine.

It means the machine has electronics designed to support the addition of compatible cashless payment equipment.

A card reader, installation, activation, cellular service, merchant account, processing agreement, mounting hardware, cables, or other equipment may be separate.

Always confirm compatibility before purchasing or installing a card reader.

Why Cashless Capability Matters

Modern vending customers often carry little or no cash.

They may prefer to pay with:

• Credit cards
• Debit cards
• Compatible contactless cards
• Supported mobile payment methods

The exact payment methods depend on the reader and payment service that are installed.

Cashless capability can be especially useful in offices, warehouses, apartment communities, colleges, hotels, and other locations where customers expect modern payment options.

Important Credit Card Reader Notice

A cashless reader is not included simply because the machine is described as credit card capable.

If you plan to install a card reader, confirm all requirements before ordering.

Possible requirements may include:

• A compatible card reader
• Correct MDB connections
• Proper reader mounting
• Reader wiring
• Cellular or network service
• A payment processing account
• Reader activation
• Professional installation when needed

Compatibility can vary by payment system and machine configuration.

Do not assume that every vending card reader will work with every machine.

DEX Protocol Support

The National 158 also supports DEX protocol.

DEX is commonly used in commercial vending for exchanging machine sales and inventory information with compatible systems.

For route operators, data can be valuable.

Instead of making every stocking decision based only on memory, operators can use compatible technology to help understand how a machine is performing.

Depending on the equipment and service being used, vending data may help with:

• Sales tracking
• Product performance
• Inventory planning
• Route planning
• Service decisions
• Restocking decisions

DEX support by itself does not provide remote monitoring. Additional compatible hardware, software, and services may be required.

Still, having DEX support makes the machine better suited to operators who want to use modern vending management tools.

Cash Payment Capability

Cash remains important at many vending locations.

The National 158 listing includes a 3-tube coin mechanism and $1 bill acceptance.

This provides familiar payment options for customers who still prefer cash.

A well-planned vending location may benefit from offering both cash and cashless payment options.

That way, customers can choose the method that works best for them.

Benefits of Multiple Payment Choices

• Customers are not limited to coins.
• $1 bill acceptance adds convenience.
• Compatible cashless equipment can be added when desired.
• More payment choices may make the machine easier to use.
• Operators can serve locations with different customer payment habits.

Executive Black Appearance

The Executive Black finish gives this National Vendors snack machine a clean commercial appearance.

A vending machine is often placed in a visible common area.

Appearance can therefore matter almost as much as function.

Black is a flexible color that works with many interior styles. It can fit into an office break room, employee cafeteria, apartment clubhouse, warehouse, waiting area, or other business setting.

It also allows colorful snack packaging to stand out behind the display glass.

Because this is refurbished equipment, normal cosmetic variation may be present. Refer to current product information and photos for details about the unit being offered.

Designed for Commercial Vending Locations

The National 158 can be considered for many types of vending locations.

The best location depends on foot traffic, customer demand, operating hours, nearby food options, and the agreement between the vending operator and location owner.

Office Buildings

Office employees often want a quick snack without leaving the building.

A commercial snack machine can provide convenient access to candy, chips, crackers, granola bars, and other products during the workday.

Warehouses and Industrial Locations

Warehouses can be strong vending locations when they have enough employees and regular shifts.

Workers may need quick access to snacks during short breaks, overnight shifts, or times when nearby stores are closed.

Apartment Communities

Apartment buildings and residential communities may use vending machines in clubhouses, laundry areas, recreation rooms, or other approved common spaces.

The machine can provide residents with convenient snack access without requiring staffed food service.

Schools and Educational Locations

Snack machines may also be used in approved educational locations.

Operators should always follow local rules and any school nutrition requirements that apply to the location.

Hospitals and Healthcare Facilities

Healthcare facilities often operate for long hours.

Vending can provide convenient packaged snacks for staff members, visitors, and other customers when cafeterias or nearby food outlets are unavailable.

Hotels and Motels

Hotels can use snack vending to provide guests with food options outside normal restaurant hours.

A snack machine can work especially well near a beverage machine to create a simple self-service vending area.

Auto Dealerships and Service Centers

Customers may spend significant time waiting for vehicle service.

Snack and beverage vending can add convenience to the waiting area.

Gyms and Recreation Facilities

Depending on the location, vending machines can offer protein bars, granola bars, nuts, crackers, and other packaged products.

Product choices should match the needs of the customers using the facility.

Good Choice for New Vending Operators

Starting a vending route requires careful control of costs.

A new operator may need to pay for machines, inventory, transportation, insurance, business costs, card reader services, tools, and other expenses.

Buying refurbished commercial equipment can help reduce the initial machine cost compared with purchasing new commercial equipment.

That can allow an operator to invest available money in other parts of the business.

A National 158 with MDB capability can be especially appealing because it combines a proven commercial machine format with support for newer payment equipment.

New operators should still research every location before buying equipment.

The machine should fit the location, customer count, product demand, doorway dimensions, electrical access, and available floor space.

Useful for Existing Vending Routes

The National 158 is not only for new vending businesses.

Established route operators may also use this model when replacing an older machine or adding equipment to a new account.

MDB capability can make the machine easier to integrate into a route that already uses compatible cashless systems.

DEX support may also be useful for operators who use compatible vending management technology.

When adding any used or refurbished machine to an existing route, compare the new machine with your current equipment.

Consider:

• Payment system compatibility
• Parts availability
• Machine dimensions
• Product capacity
• Selection count
• Service requirements
• Transportation needs
• Card reader requirements

Why Refurbished Vending Equipment?

Commercial vending machines are designed for long-term service.

Because of this, many operators choose refurbished equipment rather than buying only new machines.

A refurbished machine can provide commercial vending features at a lower purchase cost than many new machines.

That lower equipment cost may be useful when opening a new location or expanding a route.

It can also make it easier to match the amount invested in a machine with the expected sales volume of the account.

Potential Benefits of Refurbished Equipment

• Lower purchase cost compared with many new commercial machines
• Commercial-size cabinet
• Established vending design
• Useful for route expansion
• Suitable for many traditional snack locations
• Can reduce the capital required to open a vending account
• May provide better value for moderate-volume locations

Refurbished does not mean new.

A refurbished vending machine has been previously used. Cosmetic wear and component variations are normal for equipment of this type.

Buyers should review the seller's refurbishment process, warranty terms, photos, shipping information, and current machine configuration before ordering.

National Vendors Commercial Vending Equipment

National Vendors machines have been used in commercial vending for many years.

For route operators, using established commercial equipment can have practical benefits.

Technicians may already be familiar with the machine family. Replacement parts may also be available through vending equipment and parts suppliers.

However, parts compatibility should never be assumed based only on the manufacturer name.

National Vendors produced different models and revisions. Always verify the exact machine model and part number before ordering replacement parts.

Planning Your Snack Menu

The machine is only one part of a successful vending location.

The products inside it matter just as much.

A good snack menu usually includes a mix of familiar products and options that match the specific customer base.

Traditional Snack Products

• Potato chips
• Corn chips
• Tortilla chips
• Cheese snacks
• Pretzels
• Popcorn
• Chocolate bars
• Non-chocolate candy
• Cookies
• Crackers
• Pastries

Alternative Snack Products

• Granola bars
• Protein bars
• Nuts
• Trail mix
• Baked snacks
• Fruit snacks
• Reduced-sugar products
• Other shelf-stable packaged foods

The best mix depends on the location.

Instead of guessing, track what customers actually buy.

Products that consistently sell should receive more space. Products that move slowly can be replaced with new options.

Use Sales Data to Improve the Product Mix

Successful vending is often based on small improvements over time.

A product may look like a good choice but sell poorly at a specific location.

Another product may sell out every week.

Tracking this information can help operators improve the machine.

Useful Questions to Ask

• Which products sell out first?
• Which selections rarely sell?
• Are customers asking for specific products?
• Are certain products priced too high or too low?
• Do some products need more than one column?
• Are there seasonal changes in demand?
• Does the location prefer healthier products?
• Are cashless transactions common?

Small changes can make the machine better suited to the location.

Product Rotation and Freshness

Snack vending requires inventory control.

Always check product dates when restocking.

Older products should normally be moved forward, while newer products are loaded behind them when appropriate.

This basic rotation process can help reduce expired inventory.

Operators should also avoid putting too much of a slow-selling item into the machine.

Large capacity is useful, but filling every column completely is not always the best strategy.

Stock according to actual demand.

Match Products to the Correct Spirals

One of the most important parts of snack machine setup is matching products to the proper spirals.

A package that is too small for a spiral may move incorrectly.

A package that is too large may bind against neighboring products or the shelf.

The goal is to give each package enough support while allowing it to move forward freely.

Before Loading a New Product

• Check the package width.
• Check the package height.
• Check the package depth.
• Make sure it fits between the spirals correctly.
• Make sure it does not rub heavily against nearby products.
• Test-vend the product several times.
• Adjust the setup if the product hangs or turns incorrectly.

A few test vends can prevent customer problems later.

Machine Placement Matters

Even a good vending machine can perform poorly in the wrong location.

Before installing a National 158, study the proposed placement area.

The machine should be easy for customers to see and reach.

It should also be placed where the operator can safely restock and service it.

Consider These Placement Factors

• Customer foot traffic
• Number of people at the location
• Hours of operation
• Visibility
• Electrical access
• Doorway size
• Hallway clearance
• Elevator access when needed
• Loading and delivery access
• Security
• Nearby food competition
• Space for opening and servicing the machine

Check Dimensions Before Ordering

The listed dimensions of the National Vendors 158 are approximately:

• Height: 72 inches
• Width: 34 inches
• Depth: 35 inches

The listed machine weight is approximately 685 pounds.

Always measure the complete delivery path before ordering a commercial vending machine.

Do not measure only the final installation area.

Measure the Entire Delivery Route

• Exterior doors
• Interior doors
• Hallways
• Turns and corners
• Elevators
• Loading docks
• Ramps
• Stair areas
• Final vending location

Remember that handles, trim, door swing, moving equipment, and packaging can affect the space needed during delivery.

Commercial Vending Machines Are Heavy

At approximately 685 pounds, this is heavy commercial equipment.

Moving a vending machine should be planned carefully.

Proper vending-machine moving equipment and experienced personnel are recommended.

Do not treat a full-size vending machine like normal household furniture.

Before delivery, make sure the location can accept the machine safely.

Electrical Planning

Confirm the electrical requirements of the actual machine before installation.

The vending location should have a suitable electrical source and should follow applicable electrical and building requirements.

Avoid unsafe extension-cord arrangements.

If you are unsure about the electrical setup at the location, consult a qualified professional.

Pair the National 158 With a Beverage Machine

A snack machine can work well by itself, but many vending locations benefit from having both snacks and beverages.

A customer buying chips may also want a drink.

A customer purchasing a candy bar may want bottled water or soda.

Placing compatible snack and beverage machines together can create a more complete vending area.

Possible beverage choices include:

• Bottled water
• Soda
• Sports drinks
• Energy drinks
• Juice
• Other packaged beverages suitable for the beverage machine

A Practical Machine for Employee Break Rooms

Employee break rooms are one of the classic uses for commercial snack machines.

Workers may only have a short break.

Leaving the building to buy food may take too much time.

A vending machine gives employees quick access to packaged snacks at the workplace.

For employers, vending can add a convenient amenity without requiring a staffed snack counter.

The National 158's selection count gives operators enough room to offer several product types rather than filling the machine with only chips and candy.

Useful for Multi-Shift Locations

Vending is especially useful at locations that operate beyond normal restaurant or store hours.

Second-shift and overnight employees may have fewer food options.

A properly stocked vending machine can remain available when nearby businesses are closed.

This makes commercial snack vending worth considering for:

• Factories
• Warehouses
• Distribution centers
• Hospitals
• Hotels
• Transportation facilities
• 24-hour workplaces

Route Efficiency

Vending profitability is affected by more than product markup.

Time and travel matter too.

Every service visit can involve driving, parking, unloading products, filling the machine, collecting money, cleaning the machine, and checking equipment.

A commercial-size machine can help an operator carry more inventory at a location.

That may improve route efficiency when the machine capacity matches customer demand.

The goal is not simply to fill the machine as much as possible.

The goal is to carry the right amount of the right products.

Keep Popular Products Available

An empty spiral cannot make a sale.

If a certain snack sells quickly, consider giving it more capacity.

For example, an operator may use two selections for a very popular chip instead of using one selection for a product that rarely sells.

This type of adjustment is one of the simplest ways to improve a vending machine's product plan.

Keep the Machine Clean

A clean vending machine creates a better customer experience.

Regular cleaning should be part of every service visit.

Basic Cleaning Checklist

• Clean the front glass.
• Wipe the selection area.
• Clean the delivery bin.
• Remove crumbs and debris.
• Wipe visible cabinet surfaces.
• Check for sticky residue.
• Remove outdated price labels when needed.
• Keep the payment area clean.

Always follow safe cleaning practices around electrical equipment.

Routine Operator Checks

A vending operator should look over the machine during normal service visits.

Small issues are often easier to address before they become larger problems.

Things to Check

• Are all selections vending correctly?
• Are products loaded correctly?
• Are any spirals damaged or out of position?
• Is the coin mechanism operating properly?
• Is the bill validator accepting bills?
• Is a connected cashless reader online?
• Are selection prices correct?
• Is the delivery bin clear?
• Does the door close and lock correctly?
• Are there signs of damage or tampering?

Payment System Maintenance

Payment problems can quickly reduce vending sales.

If customers cannot pay, they cannot complete a purchase.

Coin mechanisms and bill validators should be checked as part of regular machine service.

If a cashless reader is installed, the operator should also confirm that it is powered and communicating correctly.

Follow the instructions supplied by the payment equipment manufacturer or service provider.

MDB Gives Operators More Flexibility

Older vending equipment may use payment interfaces that limit upgrade choices.

An MDB-equipped machine provides a more useful platform for compatible modern vending peripherals.

This is one reason the MDB feature is important when comparing older commercial snack machines.

It does not make every new device automatically compatible.

However, it can provide a stronger starting point for operators who want to use newer payment technology.

DEX for Vending Data

DEX can be useful for operators who want better information about machine activity.

When combined with compatible equipment and services, vending data can help an operator make more informed decisions.

For example, sales information can help identify which products deserve more space.

Inventory information may help an operator decide which machines should be serviced first.

The actual features available depend on the hardware and service connected to the machine.

Cashless Vending and Customer Convenience

Payment habits have changed.

Many customers now expect to pay electronically for everyday purchases.

For a vending operator, having a machine that can support compatible cashless technology may help keep older commercial equipment useful in modern locations.

Before adding a reader, compare:

• Reader purchase or lease cost
• Installation requirements
• Monthly service fees
• Transaction fees
• Cellular coverage
• Machine compatibility
• Telemetry features
• Contract terms

The right system depends on your vending business and location.

Traditional Cash Still Has a Place

Cashless payment is useful, but many vending customers still use cash.

A machine that supports both methods can serve a wider range of buyers.

The listed National 158 configuration includes coin and $1 bill acceptance.

Keeping the cash system operating correctly is important even after a cashless reader is installed.

Good Product Visibility

Traditional glass-front snack vending lets customers see the available products before buying.

This visual merchandising can help customers make quick decisions.

Keep product rows neat.

Make sure packages face forward when possible.

Avoid leaving empty or poorly arranged selections for long periods.

A clean, organized machine can look more inviting.

Use Clear Pricing

Customers should be able to understand product prices before making a purchase.

Clear pricing reduces confusion and creates a smoother vending experience.

When changing a price, make sure the machine programming and visible price information match.

After programming price changes, test the affected selections.

Pricing Your Snacks

Snack prices depend on several factors.

These may include:

• Wholesale product cost
• Location commission
• Card processing fees
• Sales tax requirements
• Fuel and route costs
• Labor
• Product waste
• Machine maintenance
• Local market prices

Do not set prices based only on what another vending operator charges.

Know your own costs.

Choose the Right Location Size

A large machine does not automatically create large sales.

Customer traffic and demand are more important.

Before placing a machine, learn as much as possible about the account.

Questions for a Potential Vending Location

• How many people use the building?
• How many shifts are there?
• Are customers or visitors also present?
• Are there competing food options nearby?
• What products do people request?
• Is the machine area secure?
• Is power available?
• Can the machine be delivered safely?
• Does the location expect cashless payment?

Refurbished Machine for Route Expansion

Adding a new vending account often requires equipment before the account has a long sales history.

That creates a business decision.

How much should you invest before you know exactly how the location will perform?

Refurbished commercial equipment can be useful in this situation.

It allows operators to place proven commercial equipment while controlling the initial equipment cost.

If the account grows, the operator can adjust the product mix, add cashless payment equipment, or add another machine when needed.

Suitable for Replacement Projects

An existing vending location may have an old machine that no longer fits the operator's needs.

Replacing that equipment with an MDB-capable machine can provide a path toward newer payment options.

Before replacing a machine, compare dimensions carefully.

A replacement machine must fit through the same delivery route and into the available space.

Plan for Service Access

Do not install the machine so tightly that it becomes difficult to service.

The operator needs enough room to access the machine safely.

Think about door movement, restocking, payment system access, and normal maintenance.

A few extra inches of planning can make future service much easier.

Security Considerations

Vending machines contain products and may contain cash.

Location security should be considered before installation.

Indoor supervised areas are different from unsupervised public areas.

Choose a location appropriate for the machine and follow normal vending security practices.

Regular service visits also give operators a chance to check locks, doors, and visible signs of tampering.

Inventory Management

Good inventory management helps reduce waste and missed sales.

Operators should know what products are in each machine and what needs to be loaded during the next visit.

A simple inventory system can include:

• Machine identification
• Location name
• Product planogram
• Current prices
• Par levels
• Restock quantities
• Expiration dates
• Sales history

More advanced operators may use compatible telemetry and vending management software.

Use a Planogram

A planogram is a simple map showing which product belongs in each selection.

This can make restocking faster.

It is especially helpful when more than one person services the same vending route.

A clear planogram can also reduce loading mistakes.

Track Slow Sellers

Every location will have products that do not sell well.

Do not leave those products in the same selection forever.

Give products enough time to generate useful sales data, then make changes when needed.

Replacing a weak seller with a stronger product can improve the machine without changing the equipment.

Watch Seasonal Demand

Snack demand can change during the year.

Schools may have different traffic during breaks.

Warehouses may have seasonal staffing changes.

Office attendance may change around holidays.

Adjust inventory to match the real traffic at the location.

Do Not Overfill Products

More inventory is not always better.

Overfilling a spiral can place pressure on products and affect vending.

Load products so they can move freely.

Test the selection after making major changes to the product setup.

Test Vends After Restocking

A quick test can catch problems before customers find them.

Testing is especially important after:

• Changing product sizes
• Changing spirals
• Adjusting shelf spacing
• Changing prices
• Servicing a motor
• Working on the control system

Why Machine Configuration Matters

Commercial vending machines can be configured in different ways.

Two machines with the same model number may not always have identical spirals, payment components, or cosmetic details.

This is especially important with refurbished equipment.

Always verify the current listing when a specific component is critical to your application.

National 158 Size and Capacity Balance

At approximately 34 inches wide, the National 158 offers a useful balance between commercial capacity and floor space.

It provides up to approximately 32 selections while maintaining a traditional snack-machine footprint.

This can make it useful for locations where operators want good product variety without installing an unusually wide cabinet.

Who Should Consider the National Vendors 158?

This machine may be a good fit for buyers looking for:

• A full-size commercial snack machine
• A refurbished vending machine
• A National Vendors snack machine
• An MDB snack vending machine
• A credit card reader capable vending machine
• A machine with DEX support
• Approximately 28 to 32 selections
• A six-shelf snack vendor
• A machine for route expansion
• A snack machine for an employee break room
• A commercial machine for an office or warehouse

Who Should Check Additional Details Before Buying?

Every vending application is different.

Check additional details before ordering if you require:

• A specific card reader brand
• A specific bill validator
• A specific coin mechanism
• A specific spiral configuration
• A guaranteed capacity for one particular product
• A specific cosmetic condition
• Special doorway clearance
• A specific electrical configuration
• Special delivery or installation service

Before You Buy

A few minutes of planning can prevent major problems during delivery and installation.

Pre-Purchase Checklist

• Measure the final machine location.
• Measure every doorway on the delivery path.
• Check hallway and corner clearance.
• Confirm elevator size if an elevator is required.
• Confirm electrical access.
• Review the machine dimensions.
• Review the machine weight.
• Confirm your desired payment setup.
• Ask about card reader compatibility when needed.
• Review shipping and delivery requirements.
• Review current warranty terms.
• Review current photos and machine configuration.

What Does Credit Card Capable Mean?

This phrase is worth repeating because it can cause confusion.

Credit card capable means that the machine's electronics can support compatible cashless vending equipment.

It does not automatically mean a card reader is installed.

It also does not mean that payment processing service is included.

A complete cashless vending setup may require a separate reader, installation, activation, payment processing agreement, and ongoing service fees.

What Does MDB Mean?

MDB means Multi-Drop Bus.

It is a communication standard used by vending machines and compatible payment devices.

For operators, the important point is simple.

An MDB-equipped vending machine generally provides better support for compatible modern payment peripherals than many older non-MDB machines.

What Does DEX Mean?

DEX is a vending data exchange standard.

It can allow compatible systems to retrieve vending information from a machine.

DEX may be used as part of inventory, sales, and route management systems.

Additional hardware and services may be needed to use those features.

What Does Refurbished Mean?

A refurbished vending machine is a previously used commercial machine that has been prepared for continued service.

It is not the same as a brand-new machine.

The exact refurbishment work depends on the seller and machine.

Buyers should review the seller's current refurbishment standards and warranty information before purchasing.

Why Buy Commercial Equipment Instead of a Small Countertop Machine?

A full-size commercial machine is designed for a different type of vending operation.

It normally provides greater capacity, more selections, and more payment flexibility.

That can make a major difference on a route.

Driving to a location takes time whether you load 50 products or several hundred products.

Commercial capacity can therefore be useful when a location has enough demand to support it.

Building a Better Vending Location

The machine itself cannot guarantee a successful vending account.

Success depends on several parts working together.

• Choose a location with real demand.
• Install the correct size machine.
• Stock products customers want.
• Set sustainable prices.
• Keep products fresh.
• Keep the machine clean.
• Maintain payment equipment.
• Restock before popular products sell out.
• Track sales and adjust the product mix.

The National 158 provides the equipment platform. The operator provides the location strategy and day-to-day service.

Frequently Asked Questions About the National Vendors 158

Is the National Vendors 158 a full-size snack machine?

Yes. The National 158 is a full-size commercial snack vending machine designed for commercial vending applications.

How many shelves does the National 158 have?

This configuration has six shelves.

How many selections does it have?

The listed configuration provides approximately 28 to 32 selections. The exact number can depend on the machine setup.

How many products can it hold?

The listed capacity is approximately 300 to 400 items. Actual capacity varies based on product sizes and shelf configuration.

Does the National 158 have an MDB board?

Yes. This machine is listed with an MDB PC board.

What is MDB?

MDB is a common vending industry communication standard used between a vending machine controller and compatible payment peripherals.

Does this machine support DEX?

Yes. This National 158 configuration is listed with DEX protocol support.

Can I install a credit card reader?

The machine is listed as credit card reader capable. A compatible reader and related equipment or service must be obtained separately unless specifically included in your order.

Does a credit card reader come with the machine?

No. Credit card capable does not mean a card reader is included. Check the current order details for any optional equipment.

Does it accept cash?

The listed configuration includes a 3-tube coin mechanism and $1 bill acceptance.

Can I sell chips in this machine?

Yes. Chips are a common product for spiral snack machines. Use the correct spiral and shelf configuration for the package size.

Can I sell candy bars?

Yes. Candy bars and similar packaged products are common vending items. The exact spiral setup should match the package.

Can it sell pastries?

Many packaged pastries can be sold from commercial spiral snack machines when the package fits the selected column and spiral correctly.

Can it sell healthier snacks?

Yes. Operators can stock suitable packaged products such as granola bars, nuts, trail mix, crackers, baked snacks, and other products that fit the machine.

Can I use it in an office?

Yes. Offices and employee break rooms are common locations for commercial snack vending machines.

Can I use it in a warehouse?

Yes. Warehouses and industrial locations can be suitable vending accounts when there is enough customer demand.

Can I place it in an apartment building?

It may be suitable for approved common areas in apartment communities, depending on available space, security, electrical access, and customer demand.

What are the dimensions?

The listed dimensions are approximately 72 inches high, 34 inches wide, and 35 inches deep.

How much does the machine weigh?

The listed weight is approximately 685 pounds.

Can one person move this machine?

A full-size commercial vending machine is very heavy. Proper moving equipment and experienced personnel should be used.

Is this machine new?

No. This product is listed as a refurbished vending machine.

Will the machine look brand new?

A refurbished machine is previously used equipment. Cosmetic differences and signs of prior use may be present. Review current product photos and condition information before ordering.

Can I change the snack selection?

Yes. Operators commonly adjust products based on sales and customer demand. Products must still fit the machine's spiral and shelf configuration.

Should I test products before filling an entire column?

Yes. Test-vending new package sizes is a good practice. It helps confirm that the product moves and drops correctly.

Can I put this machine next to a soda machine?

Yes. Snack and beverage machines are commonly placed together to provide customers with more choices.

Is this machine suitable for a new vending business?

It can be considered by new operators who need a full-size commercial snack machine. New operators should also consider location quality, delivery access, payment requirements, inventory costs, and ongoing service needs.

Is it useful for an established vending route?

Yes. MDB capability, DEX support, commercial capacity, and a traditional snack configuration can make this model useful for route expansion or equipment replacement.

National 158 Buying Checklist

Before ordering, make sure the machine matches your location and business plan.

• Confirm the National 158 is the model you need.
• Confirm the current machine configuration.
• Measure your installation area.
• Measure all doors and hallways.
• Plan for the machine's weight.
• Confirm payment equipment requirements.
• Confirm cashless reader compatibility if needed.
• Plan your snack product mix.
• Review shipping requirements.
• Review warranty information.
• Ask questions before ordering if a specific feature is required.

National Vendors 158 MDB Snack Machine – Key Advantages

The National 158 combines several useful features in one commercial snack vending platform.

• Commercial capacity: Approximately 300 to 400 items depending on product mix.
• Good variety: Approximately 28 to 32 selections.
• Six shelves: Useful for building a varied snack menu.
• Dual spiral configuration: Designed for commercial snack dispensing.
• MDB electronics: Supports compatible modern vending payment equipment.
• DEX support: Useful with compatible vending data systems.
• Cashless capable: Can support a compatible card reader.
• Cash acceptance: Listed with coin and $1 bill acceptance.
• Executive Black finish: Professional appearance for many locations.
• Refurbished value: Commercial equipment without the purchase cost of many brand-new machines.

A Strong Platform for Modern Snack Vending

A good refurbished vending machine should provide more than basic snack dispensing.

It should give the operator room to grow.

The National Vendors 158 does that through a combination of commercial capacity, multiple snack selections, MDB electronics, and DEX support.

Operators can begin with traditional cash payments and add compatible cashless technology when appropriate.

They can change the product mix as customer demand changes.

They can dedicate more columns to strong sellers and remove products that do not perform.

This flexibility is valuable because no two vending locations are exactly alike.

Built Around Everyday Vending Needs

The basic requirements of snack vending are simple.

Customers want products they recognize.

They want clear prices.

They want the machine to accept their payment.

They want the selected product to vend correctly.

Operators want capacity, serviceability, payment flexibility, and a machine that fits their route.

The National 158 is designed around these everyday commercial vending needs.

Make the Most of the Six-Shelf Layout

Six shelves give operators room to organize products in a way that is easy to understand.

Large products can be grouped together.

Candy can be grouped in another area.

Health-focused products can have their own section.

The layout can also be adjusted as sales patterns become clearer.

A new account might start with a broad product mix.

After several service cycles, the operator can use sales results to decide which products deserve more space.

Use Capacity Wisely

A machine capable of holding hundreds of products gives operators options.

However, the goal should not be to fill every available space with maximum inventory on day one.

Start with reasonable quantities.

Watch how quickly products sell.

Increase inventory for strong sellers.

Reduce quantities for slower products.

This helps control inventory costs and reduces the chance of products reaching their expiration dates before they sell.

Keep Service Simple

A well-organized vending route is easier to manage.

Keep records for the machine.

Record product prices and selection assignments.

Keep useful replacement parts and service information available.

If several employees service your route, use a consistent loading plan.

Simple systems can save significant time over hundreds of service visits.

Plan Before Adding Cashless Payments

Cashless vending can add convenience, but operators should understand the complete cost.

The reader itself is only one part of the system.

Depending on the provider, there may be equipment charges, activation fees, processing fees, monthly service fees, or other costs.

Compare providers and confirm compatibility before installation.

Also check cellular coverage at the vending location when the selected system depends on cellular communication.

Vending Machine Location Tips

A good location should have enough potential customers to support the machine.

It should also be convenient.

People are more likely to use a vending machine when it is visible and easy to reach.

A hidden machine may receive less traffic even when many people use the building.

When possible, consider placement near areas where people naturally gather.

Examples may include break rooms, cafeterias, waiting rooms, employee entrances, recreation areas, or other approved high-traffic spaces.

Understand Your Customer

The same machine can perform very differently in two locations.

A product mix that works in a warehouse may not be ideal for a professional office.

A gym may prefer different products than an auto repair waiting room.

Listen to customer requests, but also compare those requests with actual sales.

People may ask for a product and still buy something else more often.

Sales data gives you a clearer picture.

Stock Recognizable Products First

When opening a new account, familiar products can provide a useful starting point.

Customers already understand what they are buying.

Once you collect sales information, you can introduce additional products and test demand.

Use the National 158's selection count to balance proven sellers with new choices.

Reduce Sold-Out Selections

A sold-out popular selection is a missed opportunity.

If a product repeatedly sells out before the next service visit, you have several choices.

• Increase service frequency.
• Add another selection for the same product.
• Increase the amount loaded when possible.
• Replace a weak seller with additional capacity for the strong seller.

The best choice depends on the route and location.

Control Product Waste

Unsold expired products reduce vending profits.

Track expiration dates and avoid overstocking slow items.

When appropriate, move products between locations based on demand while they are still within acceptable dates and storage conditions.

Good inventory control can be just as important as increasing sales.

Maintain a Professional Appearance

The Executive Black cabinet provides a professional base.

Operators should maintain that appearance through regular cleaning and careful service.

Remove old tape, outdated labels, and unnecessary stickers.

Keep the glass clean.

Keep the delivery area free of crumbs and packaging.

A machine that looks cared for can create a better impression for both customers and location managers.

Protect Your Vending Investment

Regular maintenance helps protect any commercial vending machine.

Do not ignore small problems.

A payment issue, damaged spiral, loose component, or sticking delivery door may become more serious if it is left unresolved.

Address problems promptly and use correct replacement parts.

Verify Replacement Parts by Model

When ordering parts for a National Vendors machine, use the exact model information whenever possible.

Do not order based only on appearance.

Similar-looking vending parts can have important electrical or mechanical differences.

Part numbers, connectors, voltage, board revisions, and machine serial information may be important.

Refurbished Equipment Can Support Business Growth

Vending businesses often grow one location at a time.

That means equipment cost matters.

A refurbished commercial machine can allow an operator to add an account while preserving capital for products, transportation, cashless systems, and future expansion.

As the route grows, the operator can continue adding equipment that fits each account.

Commercial Capacity Without Excess Complexity

The National 158 follows the familiar glass-front spiral snack machine design.

Customers can see products and make a selection.

Operators can organize shelves and spirals based on package size.

This straightforward format has made spiral snack vending common in commercial locations.

National 158 for Office Vending

An office vending program can be simple.

Stock familiar products.

Keep prices clear.

Offer convenient payment choices.

Maintain the machine.

Adjust inventory based on what employees actually buy.

The National 158 gives operators enough selections to serve a mixed office population without requiring several snack machines.

National 158 for Warehouse Vending

Warehouse vending often requires strong capacity and dependable service.

Employees may work several shifts.

Break periods may be short.

A commercial snack machine provides fast self-service access to packaged foods.

Operators can use sales history to stock higher quantities of products that are popular with each shift.

National 158 for Apartment Vending

Residential vending can provide convenient snacks to tenants and guests.

The machine may be installed in an approved indoor common area where residents have regular access.

Cashless payment can be particularly useful in residential settings because many customers may not carry coins or small bills.

National 158 for Hotel Vending

Hotel guests may want snacks late at night or between meals.

A snack machine can provide around-the-clock self-service access when placed in an appropriate area.

Pairing the snack machine with a beverage vendor can create a convenient vending station for guests.

National 158 for Healthcare and 24-Hour Locations

Locations that operate around the clock can benefit from vending because staffed food service may not always be available.

A properly stocked snack machine can serve employees and visitors during evenings, nights, weekends, and holidays.

Product demand should be reviewed regularly because different shifts may have different buying patterns.

Why Selection Variety Matters

Customers do not all want the same snack.

Some want salty products.

Others want sweets.

Some prefer lighter options.

Others want a larger snack.

With approximately 28 to 32 selections, the National 158 gives operators room to serve several preferences at once.

Why MDB Matters When Buying Used Vending Equipment

When comparing refurbished vending machines, the control system is an important consideration.

A low-cost machine may not be the right value if its electronics make payment upgrades difficult.

The MDB board in this National 158 is therefore an important part of the product.

It provides a more modern vending interface for compatible peripherals and can make the machine a better candidate for cashless payment upgrades.

Why DEX Matters to Route Operators

As a vending route grows, managing machines based only on memory becomes harder.

Operators may have dozens or hundreds of selections spread across multiple locations.

Compatible data tools can help organize that information.

DEX support gives the National 158 the ability to participate in compatible vending data workflows when the proper equipment is used.

Why Refurbished Can Make Financial Sense

Not every vending account produces enough sales to justify the cost of a brand-new machine.

This is one reason refurbished commercial equipment remains important in the vending industry.

Operators can match the equipment investment more closely to the expected opportunity at the location.

That does not mean every refurbished machine is right for every account.

Condition, features, payment compatibility, delivery costs, and service