3509S Extreme Duty Structural Frame Gravity Conveyor

Gravity roller conveyor gets the job done, without fail, because gravity never stops working for you. Tongue-in-cheek aside, gravity conveyors are durable and simple to use. Perfect for accumulating at the end of a powered conveyor section or queuing boxes for shipping. These extreme-duty gravity conveyors feature 3.5″ diameter x 9 ga uncoated steel rollers and structural steel frames.

Series Specifications


3-1/2″ x 9 gauge steel tubing, with straight ends, reamed to provide smooth bearing seats


4″ at 5.4 lbs structural steel painted channel for rollers set high, 5″ at 6.7 lbs structural steel painted channel set low (extra charge for set low). All frames have butt type couplings.


11/16″ hex shaft, spring loaded


Available in 1′-0″ increments from 1′-0″ to 10′-0″


Precision ABEC bearings

Frame Capacity

700 lbs per roller or 3,750 lbs maximum distributed live load per 10′ section with supports at 10′ centers; 8,000 lbs with supports at 5′ centers


To prevent pinch points that exist when gravity conveyors are permanently attached to power conveyors, use connector brackets with safety pop-out rollers.

Technical Drawings

3509S Extreme Structural Frame Gravity Roller Conveyor

Heavy-Duty Gravity Conveyor Systems
Set Low
Set High

24-hour shipments available for
all 1-foot increments from 1'-0" to 10'–0"

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