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China PA (Nylon) Precision Tube Extrusion Line Factories, Product
Product Description
Extrusion Screw: PA (nylon) screw is DSBM-T MADDOCK Barrier type mixing conveying screw which can perfectly adapt to the PA material which is with high thermal sensitivity, flowability and melting viscosity, thus ensuring uniform plasticization and high output efficiency.
Mould System: Core rods and die are made of Sweden "ASSAB" S136 die steel, precision grinding, which ensures the internal flow surface glossiness and anti-corrosion. Structure of mold adopts "high pressure volumetric type", which is initiated by our company, can provide stable and high-speed extrusion for the tube material with tiny fluctuation.
Vacuum Control: With the new technology of "automatic accurate control of vacuum" : vacuum and water system controlled separately. In this way, we can coordinate the multi-level water balance control system with vacuum system, ensuring stable vacuum degree, cooling water level and water flow.
Laser Gauge: High performance Laser measuring system, forming closed-loop feedback control, eliminating diameter deviation on-line.
Pulling Unit: Puller equipped with multilayer wear-resisting synchronous belt, without sliding phenomenon. High level precision roller drive traction, YASKAWA Servo driving system or ABB AC driving system, realize extremely stable pulling.
Cutting Unit: Based on Servo driving system, Japan Mitsubishi PLC programmable control and SIEMENS human computer interface, cutter can realize precision continuous cutting, timing cutting, length counting cutting etc. Cutting length can be set freely, and cutting times can be set automatically, which can meet with different cutting requirements of different lengths.
Technical Specifications
| Model | Process pipe diameter range (mm) | Screw diameter (mm) | L/D | Main power (KW) | Output (Kg/h) |
|---|---|---|---|---|---|
| SXG-45 | 3.0～12.0 | 45 | 30 | 15 | 18-30 |
| SXG-50 | 3.0～16.0 | 50 | 30 | 18.5/22 | 28-45 |
| SXG-65 | 3.0～20.0 | 65 | 30 | 37/45 | 55-85 |
| SXG-75 | 3.0～20.0 | 75 | 30 | 55/75 | 80-110 |
Production Speed & Accuracy
| OD (mm) | Producing speed (m/min) | Diameter control accuracy (≤mm) |
|---|---|---|
| 4.0 | 80-100 | ±0.05 |
| 6.0 | 60-80 | ±0.05 |
| 8.0 | 40-50 | ±0.08 |
| 10.0 | 25-40 | ±0.08 |
| 12.0 | 16-30 | ±0.10 |
| 14.0 | 12-20 | ±0.10 |
| 16.0 | 10-15 | ±0.12 |
Cutting Accuracy Parameters
| Cutting length | ≤50mm | ≤500mm | ≤1000mm | ≤2000mm |
|---|---|---|---|---|
| Cutting accuracy | ±0.5mm | ±1.0mm | ±2.0mm | ±3.0mm |
Equipment & Workshop Gallery
Frequently Asked Questions
What types of PA materials can be processed with this extrusion line?
The machine is equipped with a specialized DSBM-T MADDOCK Barrier screw designed to process various PA (nylon) materials characterized by high thermal sensitivity, high fluidity, and variable melting viscosity.
How is the precise pipe diameter maintained during high-speed production?
The system combines an on-line high-performance closed-loop laser measuring device with an independent multi-level water/vacuum balance control system, keeping pipe diameter tolerances as tight as ±0.05 mm.
What is the advantage of using Sweden ASSAB S136 steel for the mould?
ASSAB S136 die steel offers superior anti-corrosion properties and mirror-finish polishability, ensuring optimal internal melt flow surfaces and long-term durability against polymer degradation.
Which driving and control systems are utilized in the haul-off and cutter units?
The pulling unit utilizes Yaskawa Servo or ABB AC driving systems with wear-resistant belts, while the cutting unit integrates Japan Mitsubishi PLC controls with a Siemens human-machine interface (HMI).
What cutting methods are supported by the integrated cutting system?
The system supports continuous cutting, timing-based cutting, and length-counting cutting, with customizable cutting cycles and length tolerances ranging from ±0.5mm to ±3.0mm.
