Size:
Screw diameter: ø 20-ø 500mm
Maximum screw length: 10000mm
Barrel inner bore diameter: ø 500mm
Material 38CrMoAlA
40CrMo
42CrMo
High quality alloy steel
Technology: Nitriding treatment
Alloy coating sparying
Heating treatment
Screw fully hardening
Specification: Depth of nitrition layer 0.5-0.8mm
Nitriding treatment, surface hardness: HV≥ 900-1000
Fragility of nitrition: Less than grade 1
Surface roughtness: Ra 0.4um
Surface of hardness of nitrated Cr coating layer ≥ 950HV
Thickness of Cr coating layer: 0.03-0.08mm


Our packaging?
1. Wooden case standard
2. Plastic film package
3. According to customer requirment

Why choose us?
A> long time experience and history
B> long time nitriding treatment and heating treatment by itself
C>advanced Fanuk series CNC computer-controlled milling machines
D>depth hole drilling machine in 18meters length, which ensure the
Straigtnss of barrel inside.
E> CAD drawing confirmation before start making
F> Prompt after sale service
G>Land owner and registration capital 25, 000, 000RMB
H> prompt after-sale


Office:

1 Our Strength: We have an experience of more than 20 years of manufacturing and designing Plastic machines, varied Screws and Barrels and spares. We concentrate on improving quality, updating design, enhancing service and after service.

2 Location advantage: Located in -Ruian Town in Wenzhou City, near to Ningbo Port and Shanghai Port.

3 Market areas: Global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Middle East etc. Welcome to visit our company.

If there is any problem, you can contact with us at any time, we will reply you as soon as possible! Welcome to visit us at any time!
We promise: We assure the customer benefits, We provide competitive price, We Emphasis On Cooperation