For good plasticizing effect, we have different design of screw barrel to meet customer's demand: gradual type, mutant type, wave type, barrier type, double screen type, shunt type, separation type, exhaust type, pin type, double-head type, multi head type etc.
singe screw for HDPE products have following features :
The screw adopt barrier type mixing zone.
The barrel feeding zone is groove feed bush and made of hard alloy.
It results in higher output rates, homogeneous plasticizing and less material slippage.
Bi-metallic screw&barrel can be provided for two-three times more lifespan than nitrided screw&barrel.
OSD Single Screw And Barrel
Diameter: Φ 15-Φ 300mm
Technical Data:
Nitride Case Depth
0.5mm-0.8mm
Nitride Hardness
950-1020HV
Nitride Brittleness
≤Grade One
Surface Roughness
Ra0.4um
Screw Straightness
0.015mm
Alloy Hardness
HRC58-62
Alloy Depth
0.5mm-0.8mm
Chromium Coating Thickness
0.025~0.10mm
About O.S.D :
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