can customized all kinds of different material in compressed spring, extension spring, torsion spring, shaped spring,etc. As top china metal spring suppliers,Pls contact us via [email protected] if you have need for springs manufacturing solution!

Top Metal Spring Manufacturer In China

Lean manufacturing capable custom manufacturer of metal springs.

Pintejin has been the best metal spring manufacturer, factory, and supplier in China since 2007. ISO9001:2015 approval, and ITAF 16949 Certificates.

Our Custom metal spring service are top quality with Design, develop, process and manufacture various types of spring hardware products.We can design and produce metal spring that meet customer requirements according to customers’ different market positioning.

Manufacturer Of Custom Alloy Springs In Medium To High Volumes For OEMs

ISO 9001:2015 and IATF 16949:2016 certified manufacturer of precision springs, wire forms and complex parts. Types of springs include Helical Compression Springs, Conical Springs, Barrel (Convex) and Barbell/Hourglass (Concave) Springs, Variable Pitch Springs,Special Springs(Flat Spring) , Leaf Spring, Belleville Washers , Garter Spring , Spiral or Power Springs , Constant-force Spring , Volute Springs , Torsion Bars,Helical Tension Springs(Tension/Extension Springs/Drawbar Springs) & Helical Torsion Springs.Springs are available with 93 degrees C to 550 degrees C maximum operating temperature and 105 ksi to 300 ksi minimum tensile strength. Pintejin Metal Spring Manufacturer’s Capabilities include flat ends, ground flat ends, open flat ends, spring designing, machining, stamping and turning.Available with various finishes such as black oxide, cadmium, color coated, galvanized, painted, zinc and polished.Compression springs with wire diameters from 0.006″ to 0.276″. Body shapes in straight cylindrical, conical, barrel, and hourglass with constant or variable pitch. Ends are normally closed and ground or not ground. Extension springs with wire diameters from 0.010″ to 0.250″. All types of ends like twist loops, cross-center loops, side loops, German hooks, extended hooks, swivel hooks and flat stock hooks. Torsion and double torsion springs with wire diameters from 0.010″ to 0.250″ and with many different end configurations on the legs. Contact us or Email [email protected] to see how our people, equipment and tooling can bring the best quality for the best price for your custom metal springs project.

A Custom Spring Manufacturing Factory:Offering Free Spring Mechanics Design provides high-quality and precision springs manufacturing and free spring mechanics design services for customers around the world. Our professional services include spring design, rapid prototyping, spring machining, molding and mass production services as well as a range of surface finishing, assembly, packaging, and transportation. Moreover, our team can provide professional modification opinions based on the difficulties in production engineering. Our capacity makes us manufacture springs with unrivaled speed and the highest quality standard, no matter prototype order, low-volume production, or mass order.Pintejin offers the following custom spring services for our customers:

Spring Design Research And Development
Spring Design Research And Development:Our team specializes in more than ten years. Has professional material processing technology, heat treatment technology and spring design calculation capabilities. We can start from the customer’s product, find the pain point of the product, analyze the structure of the product, the way of operation, the working environment, etc., and carry out the reasonable selection of spring materials from all aspects of the product, the endowment of processing technology, and the perfect design calculation. Ability to design and develop springs suitable for your products for you. Our design philosophy is: to save the customer’s cost, improve the performance of the product, let the customer’s product occupy the market competitiveness, and make us an alternative help for the customer.
Precision Spring Machining And Rapid Prototyping
Pintejin has been positioned in the research and development and production of high-quality spring hardware products since its establishment. Each device has the function of full length inspection and full angle inspection. It can realize the functions of automatic angle correction, length automatic correction, and 100% sorting of grains produced by the machine. The spring has high precision and stable performance indicators. In order to cooperate with the customer’s model development, the company is equipped with sufficient raw materials and complete production tools. Has advanced numerical control production equipment and special rapid sample preparation department. We can quickly generate spring samples with different processes, so that the spring samples can be displayed in the hands of customers quickly
Spring Quality Assurance
Pintejin is equipped with strength testing machines with different ranges for each interval. Use scientific methods to test the compression, pulling and torsion of springs. We has life and salt testing machines. It can accurately test the true life and anti-corrosion ability of the spring.We also has various types of video testing instruments, which can accurately measure road parameters.
Spring Perfect Supply Guarantee
Under the state of full operation of the company, the production capacity of some types of springs can reach 10 million pieces, and large quantities of urgent orders can be shipped in batches. We have a large warehouse for commonly used materials, which can be shipped after placing an order, and can be delivered on-demand.


Pintejin provides variety of custom spring manufacturing services for your projects. We offer custom metal spring services for a wide range of performance-critical industries. Industries we serve include:

Couldn’t Find What You Looking For?

Generally, there are stocks of common metal spring stock or raw materials in our warehouse. But if you have special demand, we also provide customization service. We also accept OEM/ODM. We could print your logo or brand name on metal spring body and color boxes.


Pintejin Group is one of the leading metal spring manufacturers which is specialized in producing, designing, supplying, exporting, custom springs service. We can do production or design according to customer’s requirements with much more experiences than expected.

Always put customer value first. No cutting corners, no breaking promises. The manufacturing of metal springs is not only our work but also our career and life.



  • Cnc Machining
  • Investment Casting
  • Ceramic Machining
  • Die Castng
  • Rapid Prototyping

Metal Spring