The USI Combo 3516 Vending Machine is a reliable refrigerated snack and beverage combo machine designed to provide a wide variety of products in a single compact unit. Manufactured by USI (United States Industries), part of the Wittern family, the Combo 3516 is built for dependable commercial vending operations in offices, schools, hospitals, apartment buildings, gyms, hotels, warehouses, and retail environments.
Professionally refurbished, each USI Combo 3516 is carefully inspected, cleaned, tested, and restored to deliver reliable performance while offering significant savings compared with purchasing a new vending machine.
The USI 3516 features a 3-wide snack and beverage configuration, offering 29 snack selections expandable up to 42 selections and 6 beverage selections. This flexible design allows operators to sell popular snacks, candy, bottled drinks, and canned beverages from one machine while reducing the floor space required compared with installing separate snack and drink machines.
Equipped with electronic controls, refrigerated beverage storage, MDB payment compatibility, and support for modern payment upgrades, the USI Combo 3516 is an excellent choice for entrepreneurs starting a vending business or operators expanding their existing routes.
USI Combo 3516 Technical Specifications
| Specification | Details |
|---|---|
| Model | USI Combo 3516 |
| Common Name | USI Combo II |
| Brand | USI / Wittern |
| Machine Type | Refrigerated Snack & Beverage Combo Vending Machine |
| Configuration | 3-Wide Combo |
| Snack Selections | 29 selections (expandable to 42) |
| Beverage Selections | 6 selections |
| Total Selections | Up to 48 selections depending on configuration |
| Product Types | Chips, candy, crackers, pastries, cans, bottles |
| Dimensions | 72 in (183 cm) H × 42 in (106 cm) W × 34.4 in (87 cm) D |
| Weight | Approx. 963 lb (437 kg) |
| Voltage | 115V / 60Hz |
| Power Consumption | Approx. 7.5 Amps |
| Refrigeration System | Hermetically Sealed Refrigeration System |
| Refrigerant | R-134a |
| Controls | Electronic Controls |
| Lighting | Product Display Lighting |
| Payment Compatibility | MDB Compatible – Coin, Bill Validator, Card Reader, Mobile Payments |
| Condition | Professionally Refurbished & Fully Tested |
Key Features
- Combination snack and beverage vending machine
- 29 snack selections expandable up to 42
- 6 beverage selections
- Refrigerated drink storage
- Supports bottles and cans
- Compact combo design saves floor space
- Electronic programming controls
- MDB-ready for cashless payment upgrades
- Compatible with Nayax and Cantaloupe payment systems
- Durable commercial cabinet construction
- Reliable USI/Wittern engineering
- Easy product loading and maintenance
- Ideal for offices, schools, gyms, apartments, hotels, and warehouses
- Professionally refurbished and tested


















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