Customized Diameter 55 Screw Barrel for Extruder Machine for PP HDPE PPS LDPE Materials Nitrided or Bimetallic Treatment Plastic machine
Price:
US$200~US$1,000 per pc
MOQ:
1 pc
Delivery Time:
10-20 working day
Brand:
WeSeW
Product Description
Custom Diameter 55 Screw Barrel for Extruder Machine
High-performance screw barrel designed for processing PP, HDPE, PPS, LDPE materials with nitrided or bimetallic treatment options.
| Application | Film blower, Cast film machine |
| Screw barrel material | 38CrMOALA, SACM645, Sprayed dual alloy, etc. |
| Screw diameter | Φ30-Φ150 |
| Aspect ratio | L/D=15-35 |
| Overall hardness | HRC58°-68° |
| Nitriding depth | 0.4mm-0.7mm |
| Straightness | 0.015mm-1000mm |
| Scope of application | PE, PO, PP, PVC, TPU, PBT, PET, PLA, etc. |
| Technical indicators | Conditioning time 72H, Tempering hardness HB260-290, Gas vacuum nitriding time 168H, Nitride hardness HRC62-65° |
| Processing method | Vacuum nitriding, high frequency quenching, alloy spraying, electroplating hard chromium layer |
| Condition | New |
| Warranty | 1 Year |
| Package | Wooden box |
Important Notice: We only accept product customization. Please contact us before placing an order.
Product Overview
The screw is the core component of injection molding machines, determining final product quality. Our plasticizing screws perform critical functions including conveying, melting, mixing, compressing, metering, and exhausting - all essential factors affecting plasticizing quality.
Screw Material Classification
- HPT Fully Hardened Powder Alloy Screw: Made from tungsten-cobalt powder alloy tool steel with overall hardening to HRC65°. Ideal for transparent products, precision components, and high-temperature corrosive plastics like LCP, PES, PPA with fibers.
- Double Alloy Screw: Base material SACM645/38CrMoAlA with tungsten carbide nickel-based alloy ion spray welding. Surface hardness HRC60°. Suitable for transparent products and engineering materials like PA6, PA66 with fibers.
- Electroplating Screw: SACM645/38CrMoAlA base with hard chromium, nickel, or titanium electroplating. Hardness HRC60°. Perfect for PC, PMMA, PET transparent materials and corrosive U-PVC plastics.
- Stainless Steel Screw: 9Cr18MoV special stainless tool steel with overall quenching and hardening to HRC55°.
- SKD61 Screw: Hitachi SKD61 material with special processing for excellent toughness and torsion resistance.
- Ordinary Nitrided Screw: SACM645/38CrMoAlA base with nitride layer depth 0.5-0.8mm and overall hardness HV980~1080°. For processing PP, ABS, PS, AS, PVC and other standard plastics.
Screw Segment Functions
Injection molding machine screws are divided into three segments: feeding section, compression section, and homogenizing section (metering section). Each segment has specific proportions, groove depths, and transition forms tailored to application requirements.
- Feeding Section: Fixed groove depth for preheating, conveying, and pushing plastic solids. Ensures plastic begins melting by section end.
- Compression Section: Tapering groove depth for melting, mixing, shear compression, and pressurized exhaust. Plastic completely dissolves here with volume shrinkage. Compression ratio design is critical.
- Homogenizing Section: Fixed groove depth for mixing, melt transport, and metering. Maintains consistent melt temperature and stable plastic flow rates.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Kaixi Wisdom Valley Technology Co.,Ltd
Location
Building1, No.35, Luopu South Road, Luopu Stree Panyu District, Guangzhou City, Guangdong Province, China
Contact Person
Peter