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Your reliable growth partner in plastic extrusion

We use 20+ years of experience to optimize your design, reduce production risks and realize manufacturing scale. We are not only suppliers-but also your strategic partners.

Why do industry leaders trust us

Our indicators reflect the commitment to reliability, accuracy and partnership.
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Years of expertise

Rich experience in polymer science and extrusion engineering.
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On-time delivery

Continuous reliability of global supply chain integration
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Material formula

Provide a comprehensive material library for the best choice
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Serve the country

Experience of global regional requirements and standards
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If necessary, a confidentiality agreement can be signed before the quotation.

What is injection extrusion?

Understanding the scientific principle behind plastic extrusion will help us optimize your product design and improve manufacturability, cost and performance.

Working principle of plastic extrusion

Plastic extrusion transforms polymer materials into continuous profiles with uniform cross-section. The process involves melting plastic particles in a heated barrel, and then passing the molten material through a customized mold to form the contour shape you want.
Main advantages compared with other processes:
Extrusion molding is good at continuous and uniform contour, excellent material consistency and minimum waste-very suitable for sealing systems, pipes, structural parts and decorative parts.

1

Material preparation and feeding

The raw polymer particles will dry (if hygroscopic) and be sent to the extruder hopper. Our materials scientists will choose the best polymer grade according to your performance requirements.

2

Melting and homogenization

The screw rotates in the heated barrel and melts the plastic through friction and heat conduction. Additives and pigments will be fully mixed to obtain uniform characteristics.

3

Mould forming and size adjustment

Molten plastic is molded into the required shape through a precision-designed mold. Our engineers optimize the mold design to prevent material stagnation and ensure dimensional stability.

4

Cooling and cutting

The extruded profile is calibrated and cooled to solidify its shape. Finally, it is cut into specified length or rolled into continuous application.
When to choose extrusion?

Technical specification for plastic extrusion

Choosing the right material is very important for performance, durability and cost-effectiveness. We provide comprehensive thermoplastic products, tailored to meet your specific application needs.
parameter specifications details
Extrusion line size 45 mm to 120 mm Suitable for single-screw and twin-screw extruders of various material types.
Maximum part size 1600 mm x 1400 mm x 500 mm Large-scale extrusion capacity in automobile and construction fields
Minimum part size Minimum part size 1 mm x 1 mm x 5 mm
Wall thickness range 0.5mm-25mm Variable thickness capability of structural profiles and hollow profiles
Annual production capacity 3,000,000+ meters High-yield production and consistent quality control
material type example Typical application
General purpose PVC、PE、PP、PS Packaging, consumer goods, building profiles
engineering plastics PC、PA、POM Automobile, electrical housing, mechanical parts
high-performance PEEK、PPS、PVDF、PSU Medical, aerospace, chemical processing
Special compound Glass filling, flame retardant, conductive Structural components, electrical and safety applications
Tolerance type standard precision
Dimensional tolerance ±0.5% or ±0.2 mm Whichever is greater.
Wall thickness tolerance ±10% Be consistent throughout the configuration file
Linear tolerance 1 mm per meter For rigid profiles with a length not exceeding 6 meters
Angular tolerance ±1° For a multi-cavity profile
Production parameters capacity details
Monthly output 250,000+ meters Scalability according to project requirements
Delivery time (standard) 2-4 weeks From final approval to delivery
Rush (lead time) 7-10 days Provide urgent service
Minimum order quantity 500 meters For standard profiles; Customs may be different.
Not sure which material is suitable for your application?
Our materials scientists provide free material selection analysis according to your performance requirements, environmental conditions and budget constraints.
Get material recommendations

Engineering collaboration process

How can we cooperate with you to turn the concept into a manufacturable and cost-effective product?

1. Design review

Our engineers will analyze whether your design is manufacturable or not, and find potential problems before starting the mold making.

2. Material optimization

We suggest that the material formula strike a balance between performance requirements and cost.

3. Tool strategy

According to your production demand, we make the best mold method-single cavity, multi-cavity or family mold.

4. Production verification

We make verification samples for your test before full production to ensure complete satisfaction.

Our customers can usually achieve

Shorten time to market​
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Material cost saving​
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Less design revision​
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Post-processing and post-processing options

Through our comprehensive surface treatment service, the functionality and appearance of extruded profiles are improved.

Cutting and machining

Precise cutting length, oblique cutting, CNC machining to open holes and slots, milling and milling complex features.

surface treatment

Printing, coloring, hot stamping, embossing, texture treatment, film or fabric coating and scratch-resistant coating.

Assembly and joint

Including ultrasonic welding, bonding, mechanical fixing, insert molding and other parts matching.

Why choose our plastic extrusion service?

We combine decades of experience with cutting-edge technology to bring outstanding value.

Precision engineering

The tolerance can reach 0.1 mm, and the inner wall thickness is controlled consistently throughout the production batch.

Material expertise

According to specific application requirements, 200+ material types are used, including special compounds.

Quick turnover

Rapid prototyping takes 5-7 days, and the lead time of production is 30% faster than the industry average.

quality assurance

It has passed ISO 9001：2015 certification, and the key dimensions are 100% detected and automatically monitored by SPC.

Full customization

Provide complete design to production services, including DFM analysis and mold manufacturing.

Global logistics

Experienced in shipping to 40+ countries, properly packed to prevent transportation damage.

Shape your vision with one click.

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Our manufacturing facilities

Advanced facilities of 20,000 square meters, equipped with advanced extrusion technology and quality control system.

Advanced plastic extrusion plant

Our factory is located in Xiamen, China, and is equipped with 15 advanced extrusion lines, with screw diameters ranging from 45 mm to 120 mm.. We operate 24 hours a day in three shifts to meet the needs of global customers.
20,000 square meters of facilities
Modern manufacturing plants are equipped with special R&D and quality control areas.
15 extrusion lines
From 45mm to 120mm to meet different contour requirements.
150+ employees
Skilled technicians, engineers and quality control experts
ISO 9001：2015 certification
Implement a strict quality management system
Our facilities include internal mold department, material testing laboratory, and complete post-processing capacity, including cutting, drilling, punching and assembly.
Mould department
Mold customization, R&D and processing are integrated to accurately match the production requirements of injection molded parts.
Materials laboratory
All material inspection+performance verification to control the quality of plastic parts from the source.
Post-processing center
The whole process of cutting/drilling/stamping/assembly is covered, and the fine processing is formed in one step.

Successful cases of cooperation

How can we work with customers to overcome manufacturing challenges and achieve business goals?

Challenges and solutions

A well-known domestic automobile main engine factory needs a door sealing rubber strip suitable for compact SUV, which requires both sound insulation and waterproof performance, and at the same time, it needs to adapt to the complex curvature of the door, without brittle crack in the low temperature environment of-40 C and deformation at the high temperature of 80°C, and it needs to control the cost and ensure the dimensional consistency in mass production.

Our method

  • EPDM single material extrusion design, with special anti-aging formula
  • Adopt numerical control precision extrusion die and reserve radian compensation.
  • On-line continuous vulcanization system, accurately controlling vulcanization temperature and speed.
  • Automatic fixed-length cutting and radian calibration, supporting the full inspection process

Achievements achieved.

  • The material usage is reduced by 18%, and the unit cost is reduced by 12%.
  • The sound insulation effect is improved by 20%, and the waterproof grade reaches IP67.
  • The low-temperature embrittlement rate and high-temperature deformation rate are all zero, and the mass production is 300,000 units+zero defects.
  • The assembly adaptation rate of customer production line is 100%, and the assembly efficiency is improved by 25%.

Automobile door sealing strip

  • Material: EPDM extrusion (Shore hardness 70±5A)
  • Length: 1800 mm 3 mm
  • Section: 15mm× 25mm
  • Weight: 85g/m
  • Tolerance: key dimension 0.15mm.
  • Temperature range:-40 C to+120 C.
  • Production rate: 15m/min.
  • Quality standard: ISO 9001, IATF 16949.

Challenges and solutions

A building profile enterprise needs a plastic extrusion part of aluminum-plastic composite doors and windows, which requires accurate fitting with aluminum profiles, strong weather resistance (can withstand ultraviolet irradiation for 5,000 hours without discoloration and cracking), excellent heat insulation performance, flame retardant grade B1 and strict dimensional tolerance, and is suitable for large-scale construction project procurement.

Our method

  • Extrusion design of PVC-U heat insulation modified material, adding anti-ultraviolet agent and flame retardant.
  • Adopt special-shaped precision extrusion die to accurately match the slot size of aluminum profile.
  • On-line laminating technology improves weather resistance, automatic fixed-length cutting and size calibration, and supporting flame retardant and heat insulation performance testing.

Achievements achieved.

  • The ultraviolet resistance test reaches the standard (no discoloration or cracking after 5000 hours), and the flame retardant grade reaches B1.
  • The thermal insulation performance is improved by 28%, which meets the building energy-saving standards.
  • The fit with aluminum profile is 100%, and the qualified rate of dimensional tolerance is 99.8%.
  • Three large-scale construction projects were successfully completed, and the supply cycle was shortened by 20%.

Building doors and windows

  • Material: PVC-U heat insulation modified material (Shore hardness 85±5D).
  • Length: 6000mm 5 mm
  • Section: 20 mm× 40 mm (suitable for aluminum profile slot)
  • Weight: 280 g/m
  • Tolerance: Key dimension 0.18 mm.
  • Temperature range:-30 C to+70 C.
  • Production rate: 6m/min
  • Quality standard: ISO 9001, GB/T 8814-2017.

Challenges and solutions

A medical consumables enterprise needs a disposable PVC hose for infusion, which is required to be a transparent tubular extrusion, with no impurities and bubbles, up-to-standard biocompatibility, resistance to chemical corrosion, uniform inner diameter (to ensure stable infusion flow rate), and in line with YY/T 0285.1-2017 medical standards, and the mass production needs to meet aseptic requirements.

Our method

  • Design of medical grade PVC extrusion material, adding medical special stabilizer.
  • Extrusion production in aseptic clean workshop is adopted, and the whole process is closed for feeding and molding.
  • The precision extrusion die controls the uniformity of the inner diameter, carries out on-line bubble and impurity detection system, and carries out aseptic packaging after automatic fixed-length cutting.

Achievements achieved.

  • The qualified rate of bubble and impurity detection is 100%, and the biocompatibility test is up to standard.
  • The inner diameter uniformity error is less than or equal to 0.05 mm, and the stability of infusion flow rate is improved by 30%.
  • The qualified rate of aseptic packaging is 100%, which meets the medical standards.
  • The efficiency of mass production is increased by 22%, and the delivery cycle of customers is shortened by 15%.

Medical PVC infusion hose

  • Material: medical grade PVC (no plasticizer migration)
  • Length: 1500mm 1 mm.
  • Pipe diameter: 3 mm (inner diameter) ×5 mm (outer diameter)
  • Weight: 4.2g/m
  • Tolerance: Key dimension 0.05mm.
  • Temperature range:-20 C to+50 C.
  • Production rate: 8m/min.
  • Quality standards: ISO 9001, ISO 13485, YY/T 0285.1-2017.

Challenges and solutions

A food processing enterprise needs a food-grade silica gel conveying hose, which is a tubular extrusion for conveying food raw materials such as fruit juice and sauce. It is required to meet the standards of plastic materials for food contact, with no odor, no migration, high temperature resistance (sterilization temperature of 120°C), good flexibility, easy cleaning, and mass production to meet the hygiene requirements.

Our method

  • The design of food-grade silica gel extrusion material conforms to FDA 21 CFR 177.2600 standard.
  • It is produced by extrusion in sanitary clean workshop, and there is no impurity pollution in the whole process.
  • Double-layer silica gel extrusion process, the inner layer is smooth and easy to clean, the outer layer is wear-resistant, online sterilization, automatic fixed-length cutting and sanitary packaging.

Achievements achieved.

  • It completely meets the standards of food contact materials, has no odor and migration, and has passed FDA certification.
  • High temperature resistance test is up to standard (sterilization at 120°C for 30 minutes without deformation and odor)
  • Excellent flexibility, easy cleaning, suitable for food processing lines.
  • The production efficiency of customers increased by 27%, and the qualified rate of health inspection was 100%.

Food-grade silicone delivery hose

  • Material: food-grade silica gel (FDA certification)
  • Length: 2000-5000mm (customizable)
  • Pipe diameter: 50 mm (inner diameter) ×60 mm (outer diameter)
  • Weight: 180g/m
  • Tolerance: pipe diameter 0.20mm, length 3mm.
  • Temperature range:-30 C to+120 C.
  • Production rate: 5m/min.
  • Quality standards: ISO 9001, FDA 21 CFR 177.2600, GB 4806.7-2016.

Challenges and solutions

A leading household appliance enterprise needs a drainage pipe suitable for automatic washing machine, which is required to be a flexible tubular extrusion, with water pressure resistance ≥0.3MPa, corrosion resistance (resistance to laundry detergent residue), customized length, no odor, compliance with RoHS environmental protection standards, and mass production capacity of 100,000 meters per day.

Our method

  • Extrusion design of PVC modified materials, adding environmental plasticizer and corrosion-resistant additives.
  • Adopt double-layer extrusion process, the inner layer is smooth and anti-blocking, and the outer layer is wear-resistant and tear-resistant.
  • Full-automatic fixed-length cutting, port chamfering treatment, supporting online water pressure detection and odor detection system.

Achievements achieved.

  • The material loss was reduced by 15%, and the daily average production capacity reached 120,000 meters, exceeding the customer demand.
  • The water pressure resistance is raised to 0.35MPa, and the corrosion resistance test is up to standard.
  • The pass rate of odor-free detection is 100%, which fully meets RoHS standards; 8% reduction in customer procurement costs

Household appliance drain pipe

  • Material: environmental protection modified PVC (food grade standard)
  • Length: 1000-2000 mm (customizable)
  • Pipe diameter: 20mm (inner diameter) × 25mm (outer diameter)
  • Weight: 35g/m
  • Tolerance: pipe diameter 0.15mm, length 2mm.
  • Temperature range:-10 C to+60 C.
  • Production rate: 20m/min.
  • Quality standard: ISO 9001, RoHS, GB/T 13527.1-2008

Certification and quality standards

Our commitment to quality has been verified by international certification.

ISO 9001：2015

Quality management system certification

ISO 13485

Quality management of medical devices

UL authentication

Component identification of electrical safety

RoHS compliant

Restriction of hazardous substances

Is there a problem?

Answers to frequently asked questions about injection extrusion.

How do you ensure the consistency of long-term production?
We use real-time SPC (Statistical Process Control) monitoring to cover all extrusion production lines and track 12+ key parameters, including temperature, pressure, speed and size. Our automation system is constantly fine-tuned to maintain consistency. In addition, we conduct quality inspection every hour and maintain detailed batch records to achieve complete traceability.
Standard project: it takes 2-3 weeks for mold design and manufacture, and 1-2 weeks for initial sample. After approval, production will begin within one week. For complex projects that need a lot of DFM analysis or customized material formula, it takes an extra 1-2 weeks. We provide accelerated services for urgent projects-please contact us to discuss your schedule.
Our engineers will conduct a comprehensive manufacturing design (DFM) analysis to find out the areas that can reduce the use of materials, speed up extrusion, improve performance or simplify tooling. We provide specific suggestions through cost/benefit analysis, and then work with your team to implement changes that meet product requirements.
Our quality management system has passed the ISO 9001：2015 certification. In medical application, we meet the ISO 13485 standard. Our automobile production follows IATF 16949 guidelines. We also have specific material certifications including UL certification, RoHS compliance and FDA-approved materials for food contact applications.
We adopt a phased scheme: 1) prototype molds (50-500m) for design verification, 2) pilot production tools (1,000-10,000m) for market testing, and 3) full production tools optimized for high productivity and efficiency. In the whole process, we maintain design continuity and optimize mass production to ensure seamless transition as demand increases.

Make an appointment for your engineering consultation.

Contact our extrusion engineer directly to discuss your project requirements, material selection and manufacturing methods.

Online design review

Have a 60-minute meeting with our engineering team to analyze your design and provide productivity feedback.
Arrange immediately

Material sample kit

Collect physical samples of various polymers to evaluate your application requirements. Contains technical data sheets.
Request sample

Detailed project quotation

Submit your project details and get a comprehensive quotation including mold cost and unit price.
Get a quotation

Prefer to talk directly?

Call our engineering team

  • Head Office No.50, Liheng Industrial Zone, Xinglin West Road, Jimei District, Xiamen, China
  • Email Support marketing@chinaruicheng.com
  • Let's Talk WhatAPP : +8615159297535
Share your requirements and we will provide detailed analysis within 24 hours.

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