China Screw Barrel 38crmoala for Film Blowing Machine

Screw and barrel for plastic extruder
Size: Screw diameter: Φ 20-Φ 500mm
Maximum screw length: 10000mm
Barrel inner bore diameter: Φ 500mm
Material:
38CrMoAlA
High quality alloy steel
Technology:
Nitriding treatment,
Alloy coating spraying,
Heating treatment,
Screw fully hardening,
Depth of nitrition layer: 0.6-0.8mm
Nitriding treatment, surface hardness: HV≥ 900-1100
Fragility of nitrition: Less than grade 1
Surface roughness: Ra 0.4um
Streightness of screw: 0.015mm
Depth of bimetallic layer>2mm
Hardness of alloy plating: HRC62-67
Depth of alloy layer: 2.5mm-4mm
Surface of hardness of nitrated Cr coating layer: ≥ 950HV
Hardness of Cr coating layer: HRC62-72
Thickness of cr-coating layer: 0.03-0.08mm
Used for granulation, PP, PE, PA, PC, ABS, AS etc
We can manufacture various kinds of screw barrels according to the customer's requirement
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

1. We have long history and experience working in the field2. We have the most advanced equipments and technique in our industry3. We have professional engineers and staffs4. We have 100% quality ensure system and 24hours after-sale service system5. We own two lands of workshop, covering 5000cbms.