Super Heavy Duty Roller Conveyors are 3-1/2″ x .220 wall thickness for extra strength.Axles are 1-1/16″ hex and drilled for cotter pins.Frames are 6 x 8.2 lbs./ft. structural channel. 5 welded cross braces for reinforcement. Frame capacity over 10′ is 8600 lbs. 5′ is 16600 lbs. 1100 lbs. roller capacity.Rollers are set high as standard. For set low rollers call (800)922-6120.Choose from 5 ft. or 10 ft. long conveyor sections.Surcharge may apply.