| Suspension Leaf Spring for Trailers&Trucks Specification | |
| 1.Production Name : | trailer part leaf spring made by 60Si2Mn steel |
| 2.Types | 60Si2Mn steel leaf spring |
| 3.Width | 45mm---150mm |
| 4.Thickness | 5mm---60mm |
| 5.Components: | Leaf,clips/clamps,center bolt bushing,tip insert,nuts |
| 6.Color | shinning black,dark black,grey,Red, Galvanized |
| 7.Materials: | SUP7(60Si2Mn),SUP9(55CrMnA),SUP11,52CrMoV4,50CrVA or as your required |
| 8.Quality level: | Excellent quality for international market, made in China |
- Manufacturing Process
- 1. Shearing of flat bar
- 2. Center hole punching / Drilling
- 3. End heating process forming - Eye Forming / Wrapper Forming - Diamond cutting / end trimming / width cutting / end tapering - End punching / end grooving / end bending / end forging / eye grinding - Center hole punching / Drilling / nibbing
- 4. Heat Treatment - Heating - Chamber forming - Hardening - Quenching - Tempering
- 5. Surface preparation - Shot peening / Stress peening - Primary painting
- 6. Eye bush preparation process - Eye reaming / eye boring - Bush insertion - Bush reaming 7. Assemble - Presetting & load testing - Finish painting - Marking & packing
