Plastic Processing Equipment Manufacturer

About Dongguan Hejin

Dongguan Hejin Plastic Machinery Co., Ltd. is a professional manufacturing enterprise founded in 2009. We specialize in the research, development, and production of auxiliary equipment for machining plastic products.

Our experienced design and engineering team is dedicated to delivering innovative solutions for plastic drying, crystallization, blending, feeding, and temperature control systems. With years of industry expertise, we ensure every product meets the highest standards of performance, durability, and energy efficiency.

Founded

2009

Headquarters

Dongguan, China

Expertise

Plastic Auxiliary Equipment

Global Reach

Exported to 50+ Countries

Our Core Products

Engineered for performance, reliability, and energy efficiency – our range of auxiliary plastic processing equipment supports extrusion, injection molding, blow molding, PET preform production, and central material handling systems.

Dehumidification & Drying System

High-efficiency molecular sieve drying system for plastic resins. Ensures ultra-low dew point drying to prevent moisture-related defects in sensitive materials like PET, PA, and PC.

Energy-saving design
Continuous drying operation
Low dew point (-40°C)

Energy-Saving PET Crystallizer

Optimized for PET bottle preform production, our crystallizer ensures uniform heating and crystallization to prevent sticking during drying and injection.

Uniform temperature control
Low energy consumption
High throughput capacity

Molded Desiccant Dryer

Compact and efficient dryer with molded desiccant wheels for continuous moisture removal. Ideal for small to medium-scale plastic processing lines.

Compact footprint
Easy maintenance
Stable dew point control

Industrial Chillers

Precision cooling units designed for mold temperature control in injection molding and extrusion processes. Ensures consistent product quality and cycle times.

Temperature accuracy ±0.5°C
Corrosion-resistant components
Quiet operation

Resin Blending System

Automated gravimetric or volumetric blending systems for precise mixing of virgin and recycled resins, regrind, and additives.

High blending accuracy
Multi-component support
Touchscreen control panel

Plastic Processing Central Feeding System

Fully automated central conveying system for transporting raw materials from silos to processing machines with minimal contamination.

PLC-controlled operation
Low noise & dust-free
Scalable for multiple stations

Color Masterbatch Blending Equipment

Precision dosing systems for integrating color masterbatches into resin streams. Ensures consistent coloration and material properties.

High dosing accuracy
Compatible with liquid & solid additives
Easy recipe management

Large Outdoor Storage Silo

Weather-resistant bulk storage silos for long-term storage of plastic granules. Designed for durability and easy integration with feeding systems.

UV-resistant construction
Level sensing & alarms
Customizable capacity

Main Parts of Resin Machines

OEM replacement parts and wear components for resin drying, feeding, and blending systems. High-quality machining ensures long service life.

Precision-machined components
Fast delivery available
Compatible with major brands

Custom Solutions

Tailored engineering services to meet unique production requirements. From concept to commissioning, we deliver integrated plastic processing systems.

Full project engineering
Turnkey installations
On-site support & training

Why Choose Hejin?

Decades of engineering excellence and customer-focused innovation.

Industrial Grade

Robust construction using high-quality materials for long-term reliability in demanding environments.

Energy Efficient

Advanced designs reduce power consumption and operating costs without compromising performance.

Smart Automation

PLC controls, touchscreens, and remote monitoring for seamless integration and ease of operation.

Global Support

Exported to over 50 countries with technical support and spare parts availability worldwide.

Frequently Asked Questions

What types of plastic materials are compatible with your drying systems?

Our dehumidification and drying systems are suitable for a wide range of hygroscopic materials including PET, PA (Nylon), PC, PMMA, ABS, and more. Each system is configured to meet the specific drying requirements of the resin type.

Do you offer installation and training services?

Yes, we provide comprehensive installation supervision, commissioning, and operator training services. Remote support is also available via video call and remote access.

Can you customize equipment for specific production needs?

Absolutely. We specialize in custom engineering solutions tailored to your plant layout, throughput requirements, and material specifications. Our team works closely with clients to deliver fully integrated systems.

What is the typical delivery time for your equipment?

Standard equipment delivery ranges from 30 to 60 days depending on the model and customization level. We provide detailed production schedules and shipping updates throughout the process.

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Precision Plastic Processing Equipment