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Hope Plastic Machinery
Sealing Strip Extrusion Line
This sealing strip extrusion production line is specifically engineered for high-performance sealing strips, suitable for automotive, door and window, and various industrial sealing applications. Equipped with a precision feeding system and high-efficiency extrusion screw, it ensures uniform plasticisation and stable extrusion, guaranteeing precise strip dimensions and reliable sealing performance. The optimised screw structure and rapid screen-changing system significantly enhance production efficiency while supporting the use of highly filled masterbatches, thereby reducing raw material costs. The resulting sealing strips exhibit outstanding resilience, ageing resistance, and resistance to shrinkage deformation, making them suitable for diverse demanding environments. The entire line operates with low energy consumption, meeting energy-saving and environmental protection requirements, and is widely compatible with both domestic and international industrial sealing standards.
Classification:
Production Process
Production Line Composition
The extruder main unit is the core of the production line, responsible for efficiently plasticizing and extruding raw materials to ensure tubing quality and production efficiency. It features a high-precision screw and barrel design, paired with an advanced multi-zone temperature control system to guarantee stability and uniformity during extrusion. Driven by a powerful motor, the unit enables continuous, high-efficiency production and adapts to tubing of various specifications.
The cooling system is a critical component of the line, rapidly cooling and shaping extruded tubing to ensure dimensional stability and surface quality. It consists of stainless steel cooling water tanks and a precision-controlled cooling circulation unit.
This system ensures stable pulling of the tubing from the cooling tank at a constant speed, maintaining dimensional accuracy and consistency. Equipped with multiple traction belts or pulleys and a precise speed control system, it accommodates tubing of varying specifications and wall thicknesses.
These final stages ensure seamless transition from production to packaging:
- Cutting System: Precisely cuts continuous tubing into preset lengths using high-accuracy blades.
- Collection System: Automatically coils or stacks cut tubing for organized storage and transport.
Product Introduction
Technical Background
The technological foundation of general profile extruders stems from the plastic processing industry’s continuous pursuit of efficient and flexible production. With the rapid development of construction, home furnishing, automotive sectors, and others, the demand for plastic profiles has surged. This demand emphasizes not only high strength and durability but also standards for aesthetics, precision, and versatility. Traditional profile production methods often struggled to meet these diversified requirements, whereas universal profile extruders have emerged as a key technology in industry advancement due to their efficiency and precision.
Through optimized screw design, precise temperature control systems, and advanced die technology, universal profile extruders ensure uniform plasticization and stable molding of various plastic raw materials during extrusion. This results in profiles with high consistency and superior surface quality. These machines can process multiple plastic materials, including PVC, PE, PP, and ABS, adapting to diverse dimensional and specification requirements.
Advancements in automated control technology have further enhanced modern universal profile extruders, enabling higher production efficiency, lower energy consumption, and finer control systems. This ensures stable processes with minimal manual intervention. Widely used in window frames, household items, automotive components, and building materials, they serve as core equipment in plastic profile production. The ongoing evolution of universal profile extruder technology drives the diversification and precision of plastic profiles, delivering high-performance, eco-friendly, and energy-efficient solutions across industries.
Structural Composition
Extruder:
- Screw & Barrel: Plasticizes and extrudes material; barrel made of high-temperature-resistant material.
- Motor: Powers screw rotation.
- Heating System: Multi-zone heaters for precise temperature control.
- Die: Custom molds for shaping molten PVC into tubing (diameter/wall thickness).
Cooling System:
- Cooling water tank, circulation pump.
Traction System:
- Traction belts/pulleys, speed regulator.
Cutting System:
- High-precision blades, synchronized control.
Collection System:
- Automatic coiling or stacking platforms.
Product Parameters
| Parameter | Value |
| Model | HPJX-PFE-01 |
| Applicable Materials | PVC, PP, PE, ABS, PS, TPE, ASA, PMMA |
| Profile Dimensions | 5–200 mm (H/W) |
| Max. Extrusion Capacity | 150 kg/h / 250 kg/h / 350 kg/h |
| Screw Diameter | 60 mm / 75 mm / 90 mm |
| Screw L/D Ratio | 25:1 / 28:1 / 30:1 |
| Motor Power | 22 kW / 37 kW / 45 kW |
| Temperature Zones | 4–6 |
| Max. Line Speed | 10–25 m/min |
| Cooling Method | Water cooling + air cooling |
| Traction Type | Belt or roller |
| Cutting Method | Planetary or chip-free cutting |
| Winding Method | Automatic/manual (customizable) |
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.
Perfect Cooling and Pulling Systems
The high – efficiency cooling system and precise traction equipment ensure that the pipes maintain stable dimensions and smooth surfaces during the cooling and shaping processes.
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 universal pipe extruder market, our market share reaches 15%, showing strong competitiveness.
