Parallel twin screw

Product Specifications:

φ65 ~ 180 aspect ratio: L/D=18 ~ 25

Screw compression ratio according to different raw materials, different products are designed.

Technical indicators:

Material selection of high quality 38 chromium molybdenum aluminum (38CrMOALA)

Surface hardness: HV:≥290

Nitriding hardness: HV950 ~ 1000

Nitriding depth: 0.45 ~ 0.7mm

Nitride brittleness: ≤ first grade

Surface roughness: Ra0.4

Screw straightness: 0.015mm

After nitriding surface chromium plating hardness: ≥900HV

Chromium plating thickness: 0.05 ~ 0.10mm

Double alloy hardness: 60-70 HRC

Field of Application:

The different parallel double screw can be processed PVC pipe: used in real estate pipeline, urban water supply, drainage pipe system; Special-shaped MATERIAL, PLATE (sheet) : plastic steel doors and Windows, wood plastic, floor, stair HANDrail, decoration interior modification and soft and hard PVC granulation, etc.

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