Leveraging Innovative Pulleys and Solutions

Providing you with comprehensive protection

We offer a full range of pulleys to meet your diverse needs.
Water Pump Pulley
Water Pump Pulley

A durable pulley designed to drive the engine’s water pump, ensuring efficient coolant circulation and temperature regulation.

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Power Steering Pump Pulley
Power Steering Pump Pulley

A precision-engineered pulley that transmits rotational force to the power steering pump, enabling smooth and effortless vehicle steering.

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Air Conditioning Compressor Pulley/Clutch Pulley/Generator Pulley/Other Pulleys
Air Conditioning Compressor Pulley/Clutch Pulley/Generator Pulley/Other Pulleys

Specialized pulleys that drive auxiliary systems such as the A/C compressor, alternator, or clutch engagement in automotive engines.

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Crankshaft Pulley
Crankshaft Pulley

A robust pulley mounted on the engine crankshaft to transfer power to belt-driven accessories while also damping torsional vibrations.

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Tensioner/Idler
Tensioner/Idler

A spring-loaded or fixed pulley that maintains optimal belt tension and guides the belt path in serpentine or timing belt systems.

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Construction Machinery/Agricultural Machinery Pulley
Construction Machinery/Agricultural Machinery Pulley

Heavy-duty pulleys engineered to withstand harsh environments and high loads in off-road equipment like excavators, tractors, and harvesters.

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Precision Machined Parts
Precision Machined Parts

High-accuracy components produced through advanced machining processes to meet stringent dimensional and geometric tolerances.

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Precision Stamping Parts
Precision Stamping Parts

Cost-effective metal components formed by high-speed stamping presses, ideal for high-volume production with consistent quality.

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Why Choose Us

We deliver products that meet global standards and exceed customer expectations

Hardware Design

Premium materials for pulley stability & reliability

Custom molds boost component precision & compatibility

Exquisite craftsmanship meets top quality standards

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Engineering Design

30+ years low-temp welding expertise ensures structural integrity

Engineers optimize pulley structure & stress distribution

New product development for diverse customization needs

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Software Design

Multi-brand collaboration, extensive service experience

Custom tooling & welding guarantee manufacturing precision

Optimized designs enhance reliability & durability

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Mechanical Design

Certifications & 3D visualization speed up product launch

Standard parts: 10-15 days; custom parts: 30 days

Unique pulleys & custom packaging for brand differentiation

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With Quality as Our Core Competitiveness, Create Long-term Sustainable Value For Global Customers

Renchi integrates an experienced technical team, lean production management, and standardized operations to deliver high-performance, safe, and reliable pulley solutions.

Renchi Only Choose Top-grade Material

  • Renchi Pulley has specialized in intelligent manufacturing for 30 years with leading technology and quality assurance.
  • It covers the design, production and sales of water pump pulleys, power steering pumps, air conditioning compressor pulleys, idler pulleys and tensioner pulleys for passenger cars, commercial vehicles and off-road vehicle models of domestic and foreign well-known car manufacturers, with an annual production capacity of 35 million units and up to 5,000 types.
  • Many times for the host manufacturers to provide pulley lightweight and other optimization and enhancement of solutions, can be high-quality production of more than 15 groove pulleys and oversized outer diameter drive pulleys.
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Technological development

  • 2005 - ISO 9001 Quality Management System Certified
  • 2006 - Awarded over 20 patents, including both invention patents and utility patents.
  • 2009 - Established Zhejiang Renchi Auto Parts Co., Ltd. and obtained TS16949 quality system certification.
  • 2014 - Establishment of R&D Center / National Torch Program
  • 2015 - National High-Tech Enterprise / Renchi Trademark Successfully Registered
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Quality Control

To serve our valued customers.

Providing safer, more comfortable, and greener technologies and products for the automobiles people use.

CNC Machining Workshop
CNC Machining Workshop

A fully automated CNC production line precisely cuts every belt groove. Here, raw blanks are refined into high-precision finished products, ensuring quiet and smooth vehicle transmission.

Hydraulic Press Workshop
Hydraulic Press Workshop

A complex of large-scale hydraulic equipment employs constant pressure to perform deep drawing and strengthening treatments on metal components, ensuring that the pulley base possesses exceptional structural strength and durability.

Hydraulic Press Workshop
Hydraulic Press Workshop

A complex of large-scale hydraulic equipment employs constant pressure to perform deep drawing and strengthening treatments on metal components, ensuring that the pulley base possesses exceptional structural strength and durability.

Stamping Workshop
Stamping Workshop

High-precision punching presses stand in neat rows; amidst the rhythmic, powerful cadence of machinery, metal sheets undergo an instantaneous transformation, achieving the efficient preliminary forming of pulley blanks.

Office / R&D Area
Office / R&D Area

This serves as the factory's central brain; through precision modeling and scientific scheduling, the technical team translates customer requirements into production instructions, infusing every single pulley with a technical soul.

Certificate

We have successfully integrated into the global simultaneous R&D systems of renowned international and domestic automotive manufacturers.

Co-developed simultaneously with domestic and international automotive manufacturers.

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Trusted by 1000+ Global Brands for Over 10 Years

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Case Studies

The Power of R&D in Action (Proven by 1000+ Customers)

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Ensure Business Continuity, Safeguard Your Equipment

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