Zhongyang Planetary Screw and Barrel

  • Model NO.: ZYP151
  • Plastic Processed: PE
  • Automation: Automatic
  • Size: Customize
  • Nitrided Layer Depth: 0.3-0.7mm
  • Trademark: ZHONGYANG
  • Origin: China
  • Type: Pipe Extruder
  • Screw: Multi-Screw
  • Computerized: Computerized
  • Material: Nitriding Steel
  • Nitrided Hardness: HRC56-60
  • Specification: ISO 9001: 2008 approved
  • HS Code: 84779000
PVC PE PP Sheets Planet Multi-Screw Barrel



Technical information:
Base materials: 1)38CrMoAlA (JIS SACM645) 2)42CrMo (AISI 4140)
Bimetallic alloy materials:
1)Ni-based alloy/Deloro alloy 2)Tungsten carbide/Wolfram carbide
Processing technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Ionic nitriding treatment
Bimetallic alloy centrifugal casting
Technical parameters:
Nitriding layer depth: 0.3-0.7mm
Nitrided Hardness: 850-950HV (HRC 50-60)
Nitrided brittleness: Less than grade 1
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
Bimetallic layer depth: 2 mm
Bimetallic layer hardness: HRC 50-65

Terms and Conditions:
Means of transport: Ocean, Air, Express
Production time: About 20-30 days after we receive the advanced payment

Production Process:
Receiving orders - Designing & Drawing confirmation - Blanking Thermal refining - Heat treatment - Rough Turning - Polishing - Drilling for barrel - Semi Finishing Machining - Bimetallic welding - Centrifugal casting for barrel - Polishing - Nitriding treatment(120 hours) or High frequency quenching - Hard-chrome plating - O. D. Grinding - Honing for barrel - Alignment - Polishing - Inspecting - Packing & Shipping


ZY SCREW's advantage:
First-class designing and researching team;
High quality and durable products of screw barrel;
Most professional sales who can serve for you timely;
Best customer service especially after-sale service;
Powerful company's strength support long-term cooperation.

Welcome to contact us, CAMILLE will reply you timely!

We supply many types of brass gas valve. Commonly, we make NPT thread for America customers, make BSP or BSPT thread for Europe and Asia customers. Our products is produced by CNC machine. 

Size 1/4'' to 2'', all bodied and caps are produced by forge technics.

 Size 21/2'' to 4'', they are made by casting technics. 

Working pressure: 16Bar-25Bar( 150#WSP, 600WOG). 

Material: C37700, MS58(CuZn40Pb2), CuZn39Pb3, CW602N. 

Product surface can select plated nickel or chrome.

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NINGBO YINZHOU PLUMBING HARDWARE CO.,LTD , https://www.brassvalve-china.com