| Quantity(Pieces) | 1 – 30000 | >30000 |
| Est. Time(day) | 35 | To be negotiated |
customized 302 350 454 lbs valve springs
| Material | RoHS carbon spring steel |
| Specification | Φ2mm |
| End Type | close and ground flat |
| Surface Treatment | black oxide |
| Function | Tractor engine valve |
| Material Option |
Stainless steel: SUS301(1.4310), SUS302(1.4307), SUS304, SUS316, SUS631(17-7ph), X-750 SWPB(Music wire), EN10270-1 SH, DIN 17223, ASTM-A228 .etc |
| Surface finish option | Prevent Rust oil, Black-dyeing, Paint drying, electrophoresis, Electroplating, zinc plating, Nickel plating, chrome plating, galvanization, passivation, ultrasonic washing, phosphorization, dacromet, teflon coating,environmental protection plating with ROHS test, salt spray test, etc |
| Application | Auto Motive Springs: Aviation,automotive, motorbike, bicycle.Industrial Precision Springs: automatic equipment springs, medical machine springs , toy springs, mold and other industrial springs.Electrical & Home Appliance Springs: household appliance, circuit board, computer, instrument, furniture, telecommunication, electric tools, etc. |
| Advantage | 1. Drawings-Guide production Management for all the compression spring, extension spring, torsion spring, wire forms, snap springs .2. Raw Material ROHS certification3. Stable Supplying Chain & Sales Scale4. Famous Brand Certificate in the district Wenzhou
5. Above all, great wish to cooperate with client |
| Factory Equipment | CNC spring formers, tempering furnace, ends grinder, shot-blasting, lathes ,millers, punches etc. |
| Testing Machines | Projector, digital hardness tester, digital torsion strength tester. digital tension and compression strength tester. elasticity tester. life tester , salt spray test machine etc. |
| Quality Control |
1. PPAP.APQP,SPC,FMEA,MSA quality management. 2. Tolerance control : DIN, JIS Standard. 3. Raw Material: all material can have ROHS certification 4. Production Procedure: 7 times Inspection before delivery, Welcome Quality inspection from your side before delivery. 5. Traceable management throughout all process from raw material to customers. |
| Certification | ISO9001,TS16949, ROHS |
| ATTN: Read This Before Buying |
A. Due to the internet and computer display solutions. The actual products may differ from
the pictures. Please contact our salesmen for further assistance.
B. All the extension springs, compression springs, torsion springs, wire firms can be made in customized demands.
C. We appreciate Drawing-Guide Production, Please send us spring drawing as possible as you can when you inquiry.
D. We appreciate your inquiries and you are welcome all the time!