Established in 1996 with the total investment RMB 100 million, Ningbo Yunsheng Elastic Components Co., Ltd. occupies an area of 20,000m2 and is a hi-tech enterprise with the combination of R&D, production, sale and after-service. The main products of our company include the spring for auto reel,spring for engineering, spring for automobile seat belt, steel strip for automobile piston ring, Steel Strip For Pen Clip and other special coil spring and steel strip. The company insists on the value concept of Yunsheng with the core value viewpoint of "being a person and a enterprise that is respected by the society".
The parent company Yunsheng Holdings Group is the "Key Hi-Tech Enterprise listed in China Torch Program" which is awarded by the Ministry of Science and Technology and has 20 subsidiaries, In 2000,one of our brother company Ningbo Yunsheng Co., Ltd. was listed in the Shanghai Stock Exchange (Stock Abbreviation: "Ningbo Yunsheng", Stock Code: "600366"). With the strong strength of the parent company, Yunsheng Elastic Components Co., Ltd. is striving for being the outstanding coil spring manufacturer in the world.
Power Spring is made by winding the steel strip into a coil, the center of the spring is fixed on the shaft, and the external diameter is limited by a spring box. When the torque acts on the shaft, the spring is wound up and accumulates energy, and when the roll is unwound, deformation energy is released, and the reel is driven to output the working torque.
Power Spring is divided into general shape and pre-stressed shape. Pre-Stressed Power Spring is at least 25% more torque than the general power spring. Those methods are the same.
Power Spring is widely used in various forms of automatic rewinding mechanism.Such as hose reels , auto safety belts, balancers, all kinds of cord rewinders
| Material | Stainless steel (SUS304,SUS301)/ Carbon steel(62si2MnA,72A,65Mn,SK5 etc) |
| Thickness | 0.1-2.5mm |
| Width | 8.0-60mm |
| Length | as to customers' need |
| Surface treatment | Heat treatment |
| MOQ | The specification decides the MOQ |
| Payment | T/T, L/C |
| Certification | ISO9001 quality management,SGS REACH |
| Production time | 35~45 days after order confirmation |
| Packaging | Hard carton+pallet or wooden carton(of course, customized packaging is also welcomed ) |
| Customized | Available |
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