Innovations >> Push Back "featuring patented Konstant technology"

Konstant® patented push back system provides selectivity in the horizontal and vertical storage plane while maintaining multiple pallets stored in depth. This flexible system allows a customer to store from 2 to 6 pallets in depth. These systems can be placed back to back allowing for a maximum of 12 pallets deep of storage. A Konstant® cart is manufactured with a welded front, middle and rear cross member. The wheels on the carts travel inside an “I” beam rail. This heavy duty system even ties the rails to all the support beams.

Our carts provide full support for the pallet and as well the Konstant® Pushback Racking System can provide a safety bar between the rails for the last pallet stored on the rails.

Our versatile system allows for the frames to be arranged in a traditional straight line front to back or a staggered frame pattern. The patented staggered pattern reduces the column load which reduces loading on the floor. It also reduces the capacity required on the support beam thus reducing the height of the beam and increasing the available vertical height.


Structural Cart Rack System

2” diameter x 5/8” wide hardened steel wheel

Bearing Type:
Ball Bearing Wheel: Precision ground inner and outer race-ways with eight (8) precision ground and hardened balls uniformly spaced by a steel retaining ring. This keeps the balls from rubbing together and reduces internal friction and wear. Entire assembly is treated with a dry lubricant and rust inhibitor.

Number of Wheels/Rollers per Cart Mechanism:
Four (4)

Method of Attachment of Wheel/Roller:
Bolted with ½” diameter Grade 8 high strength bolt.

Capacity in pounds per each Wheel/Roller:
2200 pounds per wheel.

Two (2) years on material and workmanship.

The Cart Rail slope is 3/16” per foot.

Konstant® Height Requirements
2 deep – ½” above the front beam. Overall height including rail is 3 ½”.
3 deep – 2 ¾” above the front beam. Overall height including rail is 5 ¾”.
4 deep – 5 ¼” above the front beam. Overall height including rail is 8 ¼”.
5 deep – 7 5/8” above the front beam. Overall height including rail is 10 5/8”.
6 deep – 10” above the front beam. Overall height including rail is 13”.

Pushback Push Back Pushback rack


  • Lowest rail slope requires less push force, prolongs equipment life
  • Precision wheels and shielded bearings ensure consistent smooth operation in all temperatures and warehouse environments
  • Greater safety - full size carts with horizontal cross members support load securely
  • Flexible - engineered to work in both structural and roll form rack systems

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