ISO 9001、IATF16949、ISO14001 Certified


Capabilities & Advantages


HJ Spring is a dedicated manufacturer of springs with vast OEM/ODM customized production experience. We keep a close watch on every step of the production process, starting from R&D, drawing and design, to sample making, production, final inspection and shipment. The result is a product of the highest quality

The Personal Touch

HJ Spring always insists on personal contact with customers in order to fully understand their requirements. In what environment will a spring be used? What is the frequency of use? How and where will it be assembled into a final product? Understanding these issues and more allows us to meet or exceed the strict demands of our customers.

Short Production Cycle = Fast Delivery

We independently control the entire production flow. The result is local delivery of samples within 1-5 days and volume shipments within 2 weeks. (Overseas delivery depends on shipping time.)

Manufacture and processing procedures of spring

Service Available

All products comply with EU RoHS/REACH/Conflict Minerals Compliant
Lot Traceability (Lot Number)
Overseas Fast delivery
PPAP Level 3 documents
Salt Spry Test
Spring Life Test

Capabilities & Qualifications

  • Certified ISO 9001:2015, ISO14001:2015,IATF 16949:2016, IECQ QC080000
  • Over 200 fully automated CNC spring coiling/bending machines for material diameter from 0.08mm (0.003”) up to 8.0mm (0.315”)
  • All processes streamlined: forming, heat treatment, grinding, and shot peening.
  • We provide precision instruments to measure spring force, surface hardness, and resistance to salt and acidity in order to ensure each and every spring is of the highest quality.
  • The company carries a full inventory of wires of all sizes and materials to fit every unique requirement, or rush order.


At HJ Spring, quality is paramount. With dedicated quality engineers at each factory, we strive to continuously improve both product and process quality.

HJ Spring has been a pioneer in installing the most up-to-date precision inspection and testing equipment. We have projection microscopes for exact measurements, spring load testers to determine force, and environmental test equipment – including salt spray tester and endurance testers – to simulate real-world use.

HJ Spring has been ISO 9001 certified for over a decade. We are also certified ISO 14001 (environmental) and ISO/TS 16949 (automotive). To comply with the European Union's WEEE and RoHS Directives, we promise not to use chemical substances that are harmful to the environment. All products shipped are attached with a certification from SGS or other testing agency to ensure product safety.

By applying end-to-end quality control we are best able to minimize defects, keep costs down and ensure customer satisfaction.