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PIPE STRAIGHTENING: We subject extruded pipes to straightening
treatment to ensure straightness of material and machining convenience.
convenience.
BEARING HOLE AND SHAFT MACHINING: Includes fine turning in
bearing holes, coarse and fine turning on the shaft, and shaft
grinding.
FINE MACHINING ON OUTSIDE DIAMETER: Our technician applies
precision cutting tools for machining outside diameter of roller with
surface roughness of up to Ra1. 0um~Ra0.8um. Finer surface effect
is available upon request.
SURFACE TREATMENT: Includes general decorative anode and hard
anode treatment, Teflon treatment and chrome plating.
DYNAMIC BALANCE CLASS: ISO G6.3~G2.5.
 
Keyroll manufactures aluminum alloy rollers from high quality extruded aluminum alloy.
Inside surfaces of pipe are rib reinforces, and outside surfaces are precision machined.
We apply surface anode treatment to dynamically balance each roller.
Keyroll's rollers are light weight, smooth running, highly rigid, low drag and rust-free.
The aluminum alloy rollers are applicable for use with printing, bag making, lamination,
slitting, plastic processing and textile machines.