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ROCK

ROCK is a manufacturer of material handling and institutional food service equipment, with product lines that include the ROCK N ROLLER series of convertible hand trucks and multi-carts, replacement wheels and casters, and compartmentalized food trays for correctional and institutional settings. The brand's equipment is used in applications where repetitive load movement, space constraints, and durability under continuous use are primary considerations. 3G Electric supplies the ROCK line globally, offering configuration and replacement-part selection support for maintenance and procurement teams.

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About ROCK

ROCK is a manufacturer of material handling and institutional food service equipment, with product lines that include the ROCK N ROLLER series of convertible hand trucks and multi-carts, replacement wheels and casters, and compartmentalized food trays for correctional and institutional settings. The brand's equipment is used in applications where repetitive load movement, space constraints, and durability under continuous use are primary considerations. 3G Electric supplies the ROCK line globally, offering configuration and replacement-part selection support for maintenance and procurement teams.

The ROCK N ROLLER convertible hand truck line includes 4-position steel models with extendable frames, such as the R2RT and R2G. These units convert between hand truck, dolly, and flatbed configurations, with a rated capacity of 350 lb in hand truck mode. The frames are dual-loop steel construction, and the wheels are flat-free steel, which removes the need for pneumatic tire maintenance. The 4-position design and extendable frame allow one unit to replace multiple single-purpose carts, which is relevant for operations that need to move mixed loads across dock, aisle, and vehicle surfaces without swapping equipment.

Replacement wheel and caster options for ROCK N ROLLER multi-carts include the RCSTR6X3 all-terrain R-Trac caster. This caster has a 500 lb load capacity and is constructed from aluminum, rubber, and steel. It is designed to provide a cushioned ride comparable to pneumatic tires while eliminating flat tires, and it includes a built-in locking brake. Rolling resistance is minimized, and the lightweight construction supports maneuverability. These casters are direct replacements for compatible Rock N Roller multi-carts, allowing maintenance teams to restore cart function without replacing the entire unit.

ROCK food trays are designed for correctional facilities and other institutional meal service environments. The trays measure 14 1/4 in overall length by 9 1/2 in overall width and feature 7 compartments to support portion control and reduce cross-contamination between food items. Available colors include dark gray, orange, and terra cotta, with corresponding MPNs such as 2000DG, 2000O, 2500DG, 2500O, and 2500TC. These trays are not NSF certified. The compartment layout is consistent across the line, which simplifies inventory management for facilities that standardize on a single tray format.

3G Electric supports the ROCK line by maintaining stock of both primary equipment and replacement components, including casters, wheels, bearings, brakes, and axles. For plant engineers and maintenance managers, this means replacement parts for ROCK N ROLLER carts can be sourced alongside the original equipment. For procurement specialists, 3G Electric provides specification data, MPN cross-referencing, and quote generation for volume orders. The product range covers load capacities from 350 lb for convertible hand trucks to 500 lb for replacement casters, with wheel constructions that include flat-free steel and all-terrain R-Trac options. Food tray specifications include overall dimensions, compartment count, and color options, allowing institutional buyers to match existing tray inventories. 3G Electric ships ROCK products globally, serving maintenance, operations, and procurement teams across industrial, institutional, and commercial facilities.

Common Applications

  • Correctional facilities — ROCK 7-compartment food trays (MPNs 2000DG, 2000O, 2500DG, 2500O, 2500TC) for portion-controlled meal service.
  • Warehouse and dock operations — ROCK N ROLLER R2RT and R2G convertible hand trucks for moving mixed loads in hand truck, dolly, or flatbed positions.
  • Institutional maintenance — ROCK N ROLLER RCSTR6X3 replacement casters for restoring multi-cart mobility with 500 lb capacity and locking brake.
  • Food service operations — ROCK food trays in dark gray, orange, or terra cotta for compartmentalized meal assembly and transport.
  • Facilities management — ROCK N ROLLER multi-cart replacement wheels, bearings, brakes, and axles for scheduled maintenance programs.
  • Commercial moving and event setup — ROCK N ROLLER convertible hand trucks with extendable frames for loading and unloading vehicles.

Frequently asked questions

Common questions about ROCK from 3G Electric.

What is the load capacity of ROCK N ROLLER convertible hand trucks?

The ROCK N ROLLER 4-position steel convertible hand trucks, including models R2RT and R2G, are rated for 350 lb capacity when used as a hand truck. These units feature a dual-loop steel frame and flat-free steel wheels. The 4-position design and extendable frame allow conversion between hand truck, dolly, and flatbed configurations, so the same unit can handle different load types without additional equipment. Capacity ratings apply to the hand truck configuration; other positions may have different load limits. For specific application requirements, consult the product specifications or contact 3G Electric for configuration guidance.

What are the dimensions and compartment layout of ROCK food trays?

ROCK food trays for correctional facilities measure 14 1/4 in overall length and 9 1/2 in overall width. They have 7 compartments, which supports portion control and helps reduce cross-contamination during meal service. The trays are available in dark gray, orange, and terra cotta. Corresponding MPNs include 2000DG, 2000O, 2500DG, 2500O, and 2500TC. These trays are not NSF certified. The consistent compartment layout across the line allows facilities to standardize on a single tray format for inventory and handling purposes.

Are ROCK N ROLLER replacement casters compatible with all multi-carts?

The ROCK N ROLLER RCSTR6X3 all-terrain R-Trac caster is designed as a replacement wheel for compatible Rock N Roller multi-carts. It has a 500 lb load capacity and is constructed from aluminum, rubber, and steel. The caster features a built-in locking brake and provides a cushioned ride similar to pneumatic tires without the risk of flats. Compatibility depends on the specific multi-cart model and axle configuration. 3G Electric can verify fitment against your existing cart model and MPN before order placement.

What is the difference between ROCK N ROLLER R2RT and R2G hand trucks?

Both the R2RT and R2G are 4-position steel convertible hand trucks with extendable frames and a 350 lb capacity in hand truck mode. They share a dual-loop frame design and flat-free steel wheels. The primary difference is in the specific configuration and part number designation. The R2RT and R2G are listed under separate MPNs, which may reflect variations in wheel type, frame finish, or included accessories. For a detailed comparison of specifications, contact 3G Electric with your application requirements and we can provide side-by-side data.

Are ROCK food trays suitable for use outside correctional facilities?

ROCK food trays are described as designed for correctional facilities, but their construction and compartment layout also suit other institutional meal service environments where portion control and durability are required. The trays measure 14 1/4 in by 9 1/2 in and have 7 compartments. They are available in dark gray, orange, and terra cotta. These trays are not NSF certified, so they may not meet requirements for certain food service applications that mandate NSF listing. Buyers should verify certification requirements for their specific facility type before ordering.

What replacement parts are available for ROCK N ROLLER carts?

3G Electric supplies replacement wheels, casters, bearings, brakes, and axles for ROCK N ROLLER multi-carts and hand trucks. The RCSTR6X3 all-terrain R-Trac caster is one example, featuring a 500 lb capacity, aluminum/rubber/steel construction, and a built-in locking brake. These parts allow maintenance teams to restore cart function without replacing the entire unit. Availability varies by part number. For specific replacement part inquiries, provide the cart model and MPN to 3G Electric for cross-referencing and quote generation.