Product Categories
Hope Plastic Machinery
Puller
This Puller is specifically designed to stably and uniformly pull extruded pipes, profiles, rods, or sheets through processes such as cooling water tanks and cutting devices, ensuring dimensional consistency and quality stability. The haul-off machine typically consists of haul-off belts, wheels, or crawler tracks, with adjustable speed and pressure to accommodate different materials and production speeds. Its high-precision control system prevents product deformation or damage, improving production efficiency and product qualification rates.
Classification:
Production Process
Product Introduction
Technical Background
In plastic extrusion production lines, the haul-off unit is a critical device for ensuring dimensional accuracy, surface quality, and stable continuous production. With the expanding applications of polymer materials (e.g., films, pipes, and profiles), traditional haul-off systems struggle to meet the precision requirements for high-end products due to speed fluctuations and uneven clamping forces. Modern haul-off machines employ servo drive technology, closed-loop control systems, and multi-roller synchronization mechanisms to dynamically align haul-off speed with extrusion speed, effectively addressing defects such as wall thickness variation and warpage caused by material elastic deformation.
In recent years, industry demands have escalated: haul-off units must now accommodate complex products like ultra-thin films (<0.1mm) and multi-layer co-extruded profiles while integrating IoT technology for remote monitoring and energy optimization. For instance, adaptive clamping systems combining pressure-sensitive rollers with PID algorithms achieve dynamic compensation for material shrinkage within a speed accuracy range of -0.5% to +0.3%. Innovations like carbon fiber-reinforced composite rollers and magnetic levitation transmission have significantly reduced inertial torque, enabling acceleration rates exceeding 2.5 m/s² to support high-speed extrusion lines (>600 m/min).
Structural Composition
- Drive System: Servo motors with planetary gear reducers enable stepless speed adjustment (0.05–120 m/min)
- Clamping Mechanism: Symmetrical polyurethane-coated roller sets (60–90 Shore A hardness) with pneumatic/hydraulic pressure closed-loop control
- Transmission Unit: Precision roller chains or synchronous belts integrated with torque limiters and overload protection
- Frame Structure: Welded steel frame with linear guide rails ensuring roller parallelism ≤0.02 mm/m
- Control System: PLC-integrated encoder feedback for speed synchronization error < ±0.1%
Product Parameters
| Parameter | Value |
| Model | HPJX-AM-03 |
| Traction Speed | 1-10 m/min |
| Traction Force | 500N / 1000N / 1500N |
| Drive Motor Power | 2.2 kW / 3.0 kW / 5.5 kW |
| Power Supply | 380V / 50Hz, three-phase (customizable to other power specifications) |
Product Features
High - Efficiency and Energy - Saving
Adopting advanced screw designs and optimized heating systems ensures rapid plasticization of raw materials, improves production efficiency, significantly reduces energy consumption, and supports green production.
Precise Temperature Control
The multi – zone temperature control system ensures stable temperature in each processing step, avoiding performance degradation of raw materials due to overheating or over – cooling, ensuring consistent pipe quality, and meeting the quality requirements of different customers.
Automated Operation
The equipment is equipped with a fully automatic PLC control system, which is easy to operate, monitors various production parameters in real – time, reduces human errors, and enables an efficient and stable production process.
Flexible Mold Configuration
It provides molds of various specifications and supports multi – layer co – extrusion technology, which can meet the requirements for pipes of different diameters, wall thicknesses, and layers, and easily handle customers’ personalized orders.
Application Fields
In 2023, the annual sales volume of our universal pipe extruders reached 10 units.
Hope Machinery has been deeply involved in the plastic extruder industry for many years, accumulating rich experience and professional knowledge, and has become a trustworthy partner for customers.
Through customer surveys, our customer satisfaction rate is as high as 95%, indicating the superiority of our products and services.
In the local pipe extruder market, our market share reaches 15%, showing strong competitiveness.
