Product Categories
Hope Plastic Machinery
Dryer
This dryer is a critical equipment in plastic extrusion production lines, designed to remove moisture from plastic raw materials. It is particularly essential for hygroscopic plastics such as PA and PET. By utilizing heating, airflow circulation, or vacuum environments, the dryer rapidly and efficiently evaporates moisture from plastic pellets, preventing adverse effects on melting, molding, and mechanical properties during processing. Common dryer types include hot air dryers, vacuum dryers, and freeze dryers.
Classification:
Production Process
Product Introduction
Technical Background
In 2025, for high-speed extrusion processing of highly hygroscopic engineering plastics (e.g., PA66, PEEK, PLA), the cutter within the dryer has become the “quality gatekeeper” for raw material pretreatment. It must simultaneously achieve precise crushing (particle size deviation ±0.05mm) under low moisture content (≤50ppm) and high-temperature oxidation resistance (oxygen content <0.1%). Traditional post-drying cutting faces challenges such as material degradation caused by blade friction-induced heat (local temperature rise >60°C) and dust explosion risks (particle size <10μm), making it unsuitable for refined processing of high-fill nylons (40% glass fiber content) and bio-based materials.
Current technological breakthroughs focus on three directions:
- Low-Temperature Oxidation-Resistant Cutting:
- Liquid nitrogen jet cooling system (blade temperature ≤25°C) and nitrogen circulation protection chamber (real-time oxygen concentration monitoring ±0.01%) prevent carbonization of heat-sensitive materials.
- Dust Control:
- Integrated electrostatic adsorption modules (efficiency 99.8%) and cyclone-HEPA secondary dust removal (residual dust <0.5mg/m³) meet Class 1000 cleanroom standards.
- Intelligent Coordination:
- AI algorithms dynamically adjust cutting frequency (0–1500 cuts/min) and tool pressure (0.1N increments) via moisture sensors (±2ppm precision), optimizing moisture content, particle size, and energy consumption. For example, tungsten carbide-based nanocoatings (hardness HV2200) combined with digital twin wear prediction extend tool lifespan to over 3,000 hours, reducing energy consumption to 0.08kWh per ton.
Structural Composition
- Drive Unit: Magnetic levitation motor directly drives the cutter shaft (0–8000rpm), with stepless speed adjustment response time <0.01s.
- Cutting Chamber: Double-layered stainless steel vacuum insulation structure with built-in liquid nitrogen spray pipes and PTFE anti-stick coating.
- Tool System: Six-blade staggered alloy cutter disc (blade angle 15°±0.1°) integrated with pressure sensors (±0.05N).
- Dust Removal Module: Pulse blowback + electrostatic dust collection system, achieving ≥99.95% dust capture rate.
- Control Hub: Edge computing gateway supporting OPC UA protocol, enabling closed-loop coordination between dryer and cutting parameters based on moisture content.
Product Parameters
| Parameter | Value |
| Model | HPJX-AM-07 |
| Drying Capacity | 50 kg / 100 kg / 200 kg |
| Drying Temperature | 80°C / 100°C / 120°C |
| Motor Power | 2.2 kW / 3.0 kW / 5.5 kW |
| Power Supply | 380V / 50Hz, three-phase (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.
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.
