While many industry players produce brake drums for passenger vehicles, Benz Brake Drum Manufacturers supplying components for commercial‑grade Mercedes‑Benz trucks and vans must adhere to stringent quality and dimensional requirements. Xingtai SNT Auto Parts Factory meets these standards by combining exacting engineering with robust manufacturing controls.
Using original engineering data, our team replicates every critical dimension of Mercedes‑Benz truck brake drums, including bore clearance, bolt‑pattern accuracy, flange thickness, and cooling‑fin layout. This ensures seamless integration with factory hubs, maintaining designed brake geometry and pedal response characteristics.
Drum blanks are produced from grey cast iron alloys optimized for thermal fatigue resistance. We implement:
Vacuum‑degassed melting to reduce gas inclusions.
Low‑pressure mold filling for uniform grain structure.
Post‑cast stress‑relief cycles to alleviate residual stresses and enhance durability.
After casting, each drum proceeds through:
CNC rough turning to approximate bore and flange dimensions.
High‑precision finish turning achieving concentricity within ±0.02 mm and flange flatness within ±0.03 mm.
Fine grinding of the braking surface to an Ra that ensures consistent friction without extended bedding‑in periods.
Dimensional verification is conducted via CMM and laser measurement systems throughout production.
Our QA process includes:
Non‑destructive inspection (magnetic particle) for surface discontinuities.
Ultrasonic testing for internal flaws.
Dynamic balancing to meet Mercedes‑Benz vibration criteria.
Hardness profiling to validate metallurgical properties across the drum cross section.
Drums passing all tests receive serialized marking for full traceability.
Xingtai SNT Auto Parts Factory supplies comprehensive technical packets with each Benz‑compatible drum, including:
Installation instructions with run‑out and torque specifications.
Resurfacing guidelines detailing minimum service diameters.
Inspection schedules matched to typical Mercedes‑Benz service intervals.
Recommended lining materials that complement the drum’s friction profile.
Through meticulous engineering, controlled production, and dedicated support, Xingtai SNT Auto Parts Factory stands among recognized Benz Brake Drum Manufacturers, offering quality replacements that uphold the safety and performance standards expected in commercial Mercedes‑Benz vehicles.
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