This rear parabolic leaf spring for Mercedes Benz Actros truck is manufactured with top grade 52CrMoV4 manganese silicon alloy spring steel, the internationally recognized standard raw material for heavy-duty commercial vehicle leaf springs. The steel blank features high tensile strength, excellent yield performance and remarkable anti-fatigue property to cope with frequent overload and bumpy road driving in Africa, Middle East and Latin America.
The full standardized production workflow is as below:
- Raw steel incoming inspection: chemical composition & hardness test to reject unqualified steel stock;
- CNC precise cutting according to original OEM dimension;
- High temperature hot rolling and arch forming to fix standard camber;
- Integral quenching and high temperature tempering heat treatment under constant temperature control to eliminate internal stress, prevent spring bending deformation under long heavy load;
- Edge deburring & surface polishing to remove sharp corners;
- Full immersion electrophoretic black coating, the coating layer tightly adheres to spring surface to block water, mud and corrosive chemical erosion.
Product Core Advantages
- Strictly follows original OEM size data for Mercedes Benz Actros MP1 MP2 series heavy trucks, perfectly matches original chassis mounting hole spacing and overall length, direct plug and play replacement without cutting or secondary modification, greatly saving installation time for repair shops and fleet maintenance teams.
- Five-piece solid multi-leaf structure design, each leaf thickness 37mm and width 100mm, superior load bearing capacity suitable for overloaded cargo transportation, stable shock absorption to protect vehicle frame and cargo.
- Compared with inferior low-carbon steel springs, our finished leaf spring greatly reduces permanent arch collapse and breakage failure rate, effectively cutting clients’ after-sales replacement cost.
- Three interchangeable OEM numbers:9483201605 /3753200905 /9483203005, one product covers three commonly searched part codes, easier for overseas buyers to search and match vehicle models.
Multi-stage Strict Quality Inspection System
We implement full-link quality monitoring from raw material to finished goods before shipment: Incoming QC: Raw steel chemical composition and mechanical performance test. Semi-finished QC: Random sampling check on arch radian, thickness, width and hole position after forming. Finished-product QC: Full surface appearance inspection plus simulated long-distance road fatigue test, each tested spring completes tens of thousands of reciprocating load tests to verify service life. Pre-delivery QC: Spot check on finished batch at random before packing, unqualified items are eliminated directly and reworked. We accept third-party official inspection such as SGS as customers’ requirement, stable consistent quality helps global wholesalers reduce return rate and customer complaints.
Export Standard Packaging Specification
To avoid scratch, collision and moisture damage during long ocean transportation: Single piece leaf spring is wrapped with thick anti-scratch PE plastic film all over the surface to protect electrophoresis paint layer from abrasion. Every 2–4 pcs springs are bundled firmly with high-tensile steel strapping to prevent loose shift. Small batch sample orders adopt solid export plywood wooden case packaging with inner moisture-proof foam filling. Large bulk container order loads bundled springs onto heavy-duty galvanized steel pallet, fixed with steel belt around pallet, convenient for forklift loading and container stuffing, greatly lower damage risk in sea transit.
Flexible Logistics & Delivery Terms
Spot standard specification goods: finish packaging and delivery within 5–7 working days after receiving deposit confirmation. Custom OEM order based on clients’ drawing or sample: production cycle 25–30 working days after parameter confirmation. Multiple transport options for different client demand: Sea freight: Most cost-effective for bulk full-container orders to Mombasa, Dar es Salaam, Dubai, Lagos and other Africa & Middle East mainstream ports. Air freight: Suitable for small urgent spare stock orders with short delivery time.
Manufacturer Custom Service
We are a professional China direct leaf spring factory with decades of production experience for European heavy truck . Besides existing standard Actros leaf spring, we support full OEM & ODM customization service, including customized arch height, leaf thickness, overall length, mounting hole position according to customers’ original samples or technical drawings. Global auto spare parts distributors, fleet companies, repair station wholesalers from all countries are welcome to send inquiry for detailed technical parameter sheet and competitive factory wholesale price.
