Competitive Price Conical Twin Screw and Barrel

Conical twin screw barrel is one of important screw barrel. It have free drying, save energy, high output, extruder speed fast, producing film light more well than ordinary screw and barrel and so on excellent characters.
Size: Screw diameter; 20-500mm
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
Used for granulation, PP, PE, PA, PC, ABS, AS etc
We can manufacture various kinds of screw barrels according to the customers requirement
Our packaging?
1. Wooden case standard
2. Plastic film package
3. According to customer requirmentOffice:
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 .Main parameters :Product The best single screw barrel for extruder in ruianMaterial38 CrMoAlA(JIS SACM645); 42 CrMo(JIS SCM440)Hardness of nitrogen treatmentHV900°~1100°Tempering hardenessHB240 ° ~280°Depth of nitrogen layer:0.6~0.8mmNitrided Brittlenessabove 1 stageSurface RoughnessRa0.4 umScrew straightness0.015mmHardess of surface chromium-plating after NitridingHV≥950HVChromium plating Depth0.025-0.085mmAlloy Depth2.5mm-4mmAlloy hardnessHRC62°~72°Heating-treatmentnitrogen ,electroplated hard -chrome finish,high frequency quenching