Empowering countless manufacturers and driving industrial innovation.

From automotive to healthcare, we provide professional injection molding solutions.

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Hot runner technology

Save materials, improve efficiency, and enhance quality—comprehensively boosting the competitiveness of injection molding.

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Cold Runner Technology

A time-tested, classic technology provides a reliable guarantee for the stable production of EPDM materials.

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Our environmental mission: To never waste a single drop of material’s value.

Hot runner systems (waste reduction at the source) × Cold runner systems (recycling)—both pave the way for a green future.

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Shanghai Yushu Thermal Runner Technology Co., Ltd.

Industry expert specializing in precision injection molding system solutions.

About us

What can we do?

DOMITEC

A high-tech enterprise specializing in the R&D, manufacturing, and service of hot runner systems and cold runner systems. Since our establishment in 2010, we have consistently focused on providing global manufacturers with efficient, precise, and environmentally friendly hot runner and cold runner solutions.

Ensure every gram of plastic is precisely molded—industry-leading experts in custom hot-runner and cold-runner systems.

The company consistently adheres to a customer-centric approach and upholds the values of “professionalism, innovation, integrity, and win-win cooperation,” dedicating itself to promoting green and environmentally friendly development in the injection molding industry. By providing efficient hot-runner and cold-runner system solutions, we help our customers achieve optimal production efficiency.

Automotive Industry Solutions

High-precision hot runner systems drive lightweight automotive manufacturing.

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Home Appliance Industry Solutions

Stable temperature control ensures durable quality for home appliances.

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Medical and Packaging Solutions

Medical-grade cleanliness standards, zero defects and absolute safety

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Our products

We offer a comprehensive range of hot runner and cold runner system solutions, covering standard models, high-precision models, large multi-cavity systems, and specialized custom products, to meet the precision injection molding needs of industries such as automotive, home appliances, and medical devices.

Heavy-Duty Truck

Cold runner

Light Truck

Hot runner


SA6 triangular window

Sample part: SA6 triangular window Material: EPDM Cold runner: Needle-valve cold runner Mold cavity: 1 cavity, 1 part per mold


SC3E triangular window

Sample part: SC3E triangular window Material: EPDM Cold runner: Needle-valve cold runner Mold cavity: 1 cavity, 1 part per cavity


European-style guide groove HC2

Sample part: European-style guide groove HC2 Material: EPDM Cold runner: Needle-valve cold runner Mold cavity count: 2 cavities, 2 parts per mold


Internal water cut

Sample part: Internal water seal Material: EPDM Cold runner: Needle-valve cold runner Mold cavity: 1 cavity, 1 part per cavity

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Supplier Performance

RENZ-Tech supports your supplier for improved performance as follows:

• Follow up on parts production and inspection at every manufacturing step until shipment.

• Pre-shipment quality inspection and documentation to the customer

• Technical communication in English, German & Chinese

• On-site application failure analysis

• Calculation and simulation of bearings in application

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Developing New Products

Our engineers have been working in the field for decades and are highly familiar with the requirements and standards, as well as the current situation and capabilities of suppliers. This expertise enables them to develop cutting-edge solutions.

Developing new products includes:

Technical discussion and clarification with suppliers to ensure they understand the requirements.

Assist suppliers in improving their know-how and capabilities.

Advanced sample inspection to ensure that no unqualified samples will be shipped.

Provide technical documentation, inspection sheets, work instructions, and measurement solutions.

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Inquiry

In addition to technical and quality tasks, RENZ-Tech also provides inquiry services.

The inquiry team’s objective is to obtain and provide the BEST price from qualified and approved suppliers.

This requires us to provide the following documents to standardize the procedure.

• Supplier description

• Specification manual

• Inspection program

Our strength


German precision, Chinese speed—24-hour response to your needs

Diverse products with wide-ranging applications.

We specialize in the R&D, manufacturing, and sales of hot runner system products, including hot runner plates, hot nozzles, heating elements, and temperature control boxes. Our products are widely used in industries such as automotive, home appliances, medical devices, cosmetics, daily consumer goods, and electronics.

Senior Expert, Innovative Technology

We have a seasoned team of experts in hot runner and mold technologies, consistently driven by innovation, continuously optimizing product performance, and meeting the diverse needs of our customers.

Advanced equipment, excellent quality

We have introduced advanced production equipment and assembled a professional team for manufacturing and quality inspection, rigorously controlling materials and processes to ensure high product quality and stability.

Professional services with an excellent reputation.

Adhering to the principles of "prioritizing quality and upholding integrity," our products enjoy strong sales nationwide and are also exported overseas. We are customer-centric, providing professional and efficient technical support and services.

Partner Clients

We provide products to over 300 customers, with more than 100 stable existing customers, including over 20 customers from well-known brands.

Beauty
East wind
tenma
KONKA
BYD
SUZUKI
MITAC
Peugeot
CITROEN
Fuyao Group
Pingwei Industrial
Shenlong Automobile Co., Ltd.
Aito
The public
CHERY
Geely Automobile
VOLVO
Chang'an Automobile
LEVPMOTOR