Extruder series Screw & barrel
Extruder series Screw & barrel

Plastic Extruder Series:
Professional equipment, precision production, all kinds of screw barrel are made of high quality alloy steel 38CrMoALA manufacturing, product after nitriding by the anion has a very high wear and corrosion resistance, and increased life expectancy and so on, can replace imported products. Strict implementation of the technical indicators are "JB/T8538-1997" and the ISO9002 standards.
Screw Type: Tapered, mutant, wave type, dual type, tapered, split type, separate type, exhaust type, pin type, variable type, mixed type, double, three, long type, granulation type.
Screw the compression ratio according to different products and different formulations of the design.

Product specifications and technical indicators:
Screw Machining diameter: Ø20-Ø300
Aspect Ratio: L / D = 15 ~ 55
Quenched hardness: HB240 ° ~ 280 °
Nitride hardness: HV850 ° ~ 1000 °
Nitriding depth: 0.45 ~ 0.7mm
Nitriding brittleness: ≤ two
Surface roughness: Ra0.4
Screw Straightness: 0.015mm
After the nitride hard chromium plated Degree: HV ≥ 900HV
Chrome plating thickness: 0.05 ~ 0.10mm
Alloy Depth: 0.8 ~ 2.0mm
Double Alloy hardness: HRC56 ° ~ 65 ° (alloy using nickel-based alloys)

High quality alloy steel
① 38CrMoALA (JIS SACM645)
② 42CMo (JIS SCM440)
③ SKD61

Heat treatment:
Hard chrome plating layer
High-frequency quenching
Spray corrosion resistance, wear double metal layer
Vacuum hardening

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