Quick Details

Condition: New
Type: Injection Blow Molding
Style: Vertical
Injection Weight: suit for machines
Injection Rate: suit for machines
Clamping Force: suit for machines
Opening Stroke: suit for machines
Power(W): suit for machines
Certification: iso9001
After-sales Service Provided: Engineers available to service machinery overseas
Hardness:: HV1100-1400
Adhesion strength:: Above 10000Ps
Alloy power:: tungsten carbide(WC)
Application:: for PVC,PC,PPA,PPO,PPS, etc.
Nitriding depth:: 0.55-0.85mm
Nitriding brittleness:: Less than Grade 2
Surface roughness:: Ra 0.4
Screw staightness:: 0.015mm
Chromium-plating depth:: 0.02-0.15mm
Alloy depth:: 2.0-3.0mm


Product description

A 2-3mm abrasion & corrosion alloy coating is casted on the inner surface of the barrel. In this way, the effective service life can be greatly extended comparing with nitriding barrel. It is espeacially good to make engineer plastic, polysulfone, PPO, PVC, etc.. The Tungsten percentage in the alloy in increased to 30%, even to 50%, from 10%. The maximum processing length is increased to 6000mm from 4000mm.

Instead of PTA bimetallic alloy treatment for screw face, new spring technology high pressure speed(HP/HVOF) can fully coated the surface. WPT1 corrosion resistent alloy is used for Nylon, PVC, PC, PMMA etc.. WPT2 abrasion /high temperature resisitent alloy is used for Nylon Class Fiber, Magnetic Powder, Aluminum-magnesium powder, bakelite injection machines. WPT3 is abrasion/corrosion/high temperature resistant.


Technical parameter

1): Depth of Nitration Layer: 0.5-0.8mm
2): Hardness of Nitration: 900-1000HV
3): Fragility of Nitration: Less than grade 1
4): Roughness of the surface: Ra0.4
5): Straightness of the screw: 0.015mm
6): Surface hardness of Nitrated Cr coating Layer: ≥950HV
7): The thickness of Chrome-plating layer: 0.025-0.085mm
8): Depth of alloy Layer: 0.8-2mm.


Q1: What's screw barrel?
A: Screw barrel is the major part for plastic injection and extruder machines. It provides the plasticization of plastic.

Q2: What else can you offer except an excellent range of products for existing machines?
A: Except an excellent range of products for existing machines, we also develop and design screws and barrels for special purpose according to customerized design drawing.

Q3: How can you guarantee your quality?
A: We have the good material suppliers and at the same time we are endowed with advanced machinery and skilled engineers who are expertise in producing superior products for diverse industries. Besides, we own a separate department for quality control, where all our products are tested on various parameters.

Q4: How long is the delivery time?
A: Around 15-30 days since receiving down payment.

Q5: What's your advantages?
A: ---Screw and barrels for various needs
---expertise in design and drawing
---thousnads of drafts can supply for you
---professional technology and team
---striving for excellence in developing screw and barrel for more injection and extruder machines.