Product Center

We have established long-term cooperative relations with many enterprises.
K Timing Belt Pulley

●High precision machining
●Reliable performance
●Strong load capacity
●Flexible design options

Flange 2 1 2

This Flange 2 1/2 is a forged steel pipe connector designed for durable and leak-proof piping systems. Featuring...

HTD Synchronous Pulley

●High precision machining
●Reliable performance
●Strong load capacity
●Flexible design options

6mm Flange Coupling

This 6mm Flange Coupling is developed for high-speed rotating equipment, focusing on "stability" and "quietness."...

3 150 Flange

Fully compliant with ASME B16.5 and ASTM A182 standards, the 3 150 Flange is more than just a mechanical connector;...

HTD Belt Pulley

●High precision machining
●Reliable performance
●Strong load capacity
●Flexible design options

4 Inch Pipe Flange

4 Inch Pipe Flange is a forged disc-shaped component used to connect pipes, valves, and equipment. It provides a...

Precision Timing Pulley

●High precision machining
●Reliable performance
●Strong load capacity
●Flexible design options

Focus on non-standard customized parts

20 years of specialization in automation

Top 5 custom automation parts Manufacturer in China

Certified with ISO 9001, ISO 45001, and ISO 14001 quality standards

Multi-awarded as "Integrity Enterprise" and "Grade-A Taxpayer" by authorities

10000 +
Factory Area
100 +
Team Members
25000 +
Month Output Piece
20 +
Glorious Years

Why choose us

Why GRANGIN? -- Excellence, Undeniable.
GRANGIN is a leading Chinese manufacturer of custom automation components, powered by a nationally Top 5-ranked factory and a lean supply chain ecosystem. We specialize in agile product development and precision manufacturing of tailored parts, delivering end-to-end solutions for your cyclic production demands.
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Expert Customization Capabilities

Accommodates diverse size and quantity requirements Chief Engineer with 30+ years in automation expertise Average engineering team tenure exceeding 15 years Comprehensive 3D custom design blueprints provided

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Reliable Custom Service

12-hour response guarantee for all inquiries Prompt quotation & customized solution feedback Seamless collaboration between sales & technical teams

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Rapid Delivery Assurance

Priority Fast-Track for Urgent Orders Optimized production scheduling coordination Strict adherence to precision, hardness & quality standards

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High-Value Solutions

Direct manufacturer with specialized technical strength 25+ QC professionals enforcing rigorous quality control Continuously refined production processes Custom cost efficiency for clients

Our History

20+ years of dedication to the global custom parts field
  • history
    • The predecessor of Zhejiang Guangjin Intelligent Technology Co.,Ltd., "Shengzhou Lianxin Gear Factory", was established, specializing in various transmission parts and machining products.
    In 2005
  • history
    • Mr. Wei Zhaoxin, the founder, planned to integrate upstream and downstream industries and acquired the collective factory "Shengzhou Postal Communication Equipment Factory" established in 1985, which specialized in various conveying equipment. Meanwhile, "Shengzhou Lianxin Gear Factory" provided some of the required components, making the upstream and downstream integration more smooth and convenient.
    In 2016
  • history
    • "Shengzhou Lianxin Gear Factory" was renamed "Zhejiang Guangjin Intelligent Technology Co., Ltd.", mainly engaged in various transmission parts, automation parts, sheet metal parts, machining products, automation equipment, etc., and officially entered the foreign trade import and export business.
    In 2019
  • history
    • Awarded the national high - tech enterprise.
    In 2022
  • history
    • Awarded the "Technology Giant".
    In 2023

Our Honor

20+ years of dedication to the global custom parts field
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Product Application

Warmly welcome friends from all walks of life to visit, investigate and negotiate business!
Aircraft Manufacturing
Aircraft Manufacturing
Automotive
Automotive
Conveying Equipment
Conveying Equipment
Elevator
Elevator
Garment Factory
Garment Factory
Lifting Equipment
Lifting Equipment
Mechanical Manufacturing Equipment
Mechanical Manufacturing Equipment
Mould Equipment
Mould Equipment
Railway
Railway
Shipyard
Shipyard

Video Center

Warmly welcome friends from all walks of life to visit, investigate and negotiate business!
Material Preparation

With a 2,000-square-meter material preparation warehouse, we store various cutting tools, molds, testing tools, and components, ensuring ample inventory. This helps you establish a leading position in the mechanical components industry.

Packaging

Grangin uses 100% export-grade packaging, which is solid and designed to prevent damage from collisions, ensuring products are delivered to customers smoothly and intact. Equipped with over 150 sets of machinery and equipment, we achieve full-chain independent processing of components, supporting customized production based on provided materials or drawings.

Testing

We are equipped with professional testing equipment such as coordinate measuring machines, gear profile testers, and hardness testers. Each product undergoes three manual inspections, resulting in a qualified rate far exceeding the industry average.

News Center

Official certification, professional after sales service.
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