High Wear-Resistance Twin Screw Extruder Elements with CNC Precision Machining and HRC 58-62 Hardness
Precision Twin-Screw Elements | Core Drive Parts for Extrusion Processing
Key Product Benefits
- Outstanding Wear & Corrosion Protection: Crafted from high-performance alloy materials paired with professional surface hardening processes, these screw elements resist abrasion from high-filled polymer compounds and corrosion from chemical raw materials, maintaining stable performance even in the harshest long-term operating environments.
- Efficient High-Torque Power Transfer: Optimized thread profile design ensures smooth, lossless power transmission, delivering consistent high torque output under heavy loading conditions to enhance extrusion productivity and guarantee uniform product quality.
- Micron-Level Precision Matching: Ultra-precision machining delivers perfect fit with twin screws, minimizing operational vibration and noise, eliminating material backflow and leakage, and maximizing transmission efficiency for stable extrusion processing.
- Prolong Overall Extruder Service Life: By reducing friction and wear on mating components, these screw elements effectively extend the service cycle of the entire extrusion machine, lowering frequent part replacement costs and long-term operational expenses.
Technical Specifications
|
Parameter |
Detailed Specification |
|
Product Name |
Parallel Twin Screw Extruder Elements |
|
Standard Hardness |
HRC 58–62 (Deep Hardened) |
|
Core Materials |
38CrMoAlA,Tool Steel, Alloy Steel, WR13, HIP Steel
|
|
Processing Tech |
CNC Precision Machining & Vacuum Heat Treatment |
|
Diameter Range |
Ø20mm – Ø133mm (Customizable up to Ø300mm) |
Why Choose Our Extruder Components? (Company Strength)
20+ Years of Material Expertise: We don't just machine parts; we understand the metallurgy behind alloy materials. We know exactly which steel grade fits your specific calcium powder proportion (e.g., 35% CaCO3).
Global OEM Compatibility: Our database covers almost all major international brands. You only need to provide the model or a simple drawing.
Strict Quality Gate: Every shipment includes a Material Certificate and a Dimensional Inspection Report. We offer video outgoing inspections for your peace of mind.
Cost-Effective Logistics: Fast turnaround (30–60days) with reliable international shipping, ensuring your production line never stays idle.
Competitive Comparison: Why BLM is the Smarter Choice
|
Feature |
European OEM Brands |
Standard Chinese Parts |
BLM Ultra-Wear Series |
|
Material Grade |
Premium Imported Steel |
Standard Alloy Steel |
High-Vanadium Tool Steel |
|
Hardness (HRC) |
60–64 |
45–52 |
58–62 (Deep Hardened) |
|
Wear Life (WPC) |
Excellent |
Poor (Frequent Change) |
High (Near-OEM Levels) |
|
Price Point |
High (Brand Premium) |
Very Low |
Competitive (Factory Direct) |
|
Lead Time |
12–16Weeks |
4–8 Weeks |
8–12 Weeks (Including Custom) |
Target Applications & Industries
Our screw elements are the "workhorse" for challenging compounding tasks:
WPC (Wood Plastic Composite): Handling high-abrasion wood fiber loads.
PVC Compounding: Resistant to the corrosive nature of rigid and soft PVC.
Masterbatch Production: High-dispersion elements for carbon black and TiO2.
Engineering Plastics: Processing PA6, PA66 + Glass Fiber (up to 50%+).
Biodegradable Plastics: Precise temperature control for PLA/PBAT/Starch blends.
FAQ
Q1: How do I know if these elements will fit my specific extruder brand?
A: We manufacture elements that are 100% interchangeable with major brands like Coperion, Leistritz, and others. We verify fitment through standard serial numbers or custom drawings.
Q2: My process uses 35%+ Calcium Powder. How will your elements hold up?
A: For high-filler (CaCO3) applications like PVC/WPC, we recommend our specialized High-Vanadium Alloy or Bimetallic coatings, which specifically prevent abrasive "scouring" of the screw flights.
Q3: Can you produce custom kneading blocks based on our formula?
A: Yes. We can customize the L/D ratio, stagger angles, and disk thickness to improve mixing efficiency for specialized engineering plastics.
Q4: Do you offer samples for testing?
A: We encourage trial orders. Testing a set of kneading blocks in your most high-wear zone is the best way to prove our durability.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.