Why Choose Us for Automotive Manufacturing Machining?
IATF 16949 Quality Assurance
Automotive-grade quality, designed into the process. We deliver machined components that meet the full rigor of IATF 16949 — with PPAP Level 3 documentation, real-time SPC, and a proven track record of sub-200 PPM quality. Every part is traceable, every process is controlled.
Typical Automotive Parts We Manufacture
From legacy internal combustion engines to modern EV platforms, we deliver precision across all vehicle systems.
Structural Components
Shaft
Headlight Bracket
Cooling Plate
Door Handle
Housing Components
Fasteners
Valve & Pump
Common Materials
Material selection drives cost, weight and performance. We machine the full range of automotive grades.
Aluminum
Lightweight ideal for EV battery trays, engine housings, and structural components.
Carbon Steel
High strength and rigidity for shafts, gears and structural brackets at lower material cost.
Stainless Steel
Corrosion resistance for exhaust systems, valves, and exposed components.
Brass & Copper
Excellent thermal and electrical conductivity for EV battery terminals and valves.
Titanium
Extreme strength-to-weight ratio for motorsports and high-performance exhaust.
Cast Iron
Excellent damping and wear resistance for engine blocks, housings and brake components.
POM & PA
High strength and wear resistance for automotive brackets, connectors, and under-hood structural parts.
Magnesium Alloy
Ultra-lightweight for transmission housings, steering components, and EV weight-reduction structural parts.
PPAP & Quality Process
Our systematic 6-step approach guarantees precision and mitigates risk from quoting to mass production.
Upload drawings; engineers provide DFM & preliminary APQP plan within 24 hours.
Case Studies
Aluminum Engine Housing
Material: A380 Cast Aluminum
Process: 5-Axis Milling + Anodizing
Tolerance: ±0.005mm
Volume: 5,000 pcs / month
The previous supplier's scrap rate was eating into our customer's margin on thin-wall housings. We redesigned the fixture set and stabilized the 5-axis process — now 5,000 housings ship every month at ±0.005 mm, batch after batch.
4140 Steel Transmission Shaft
Material: 4140 Alloy Steel
Process: CNC Turning + Grinding
Tolerance: ±0.02mm
Volume: 10,000 pcs / month
Long 4140 shafts kept coming out of tolerance with the old supplier. By pairing CNC turning with precision grinding and in-process gaging, we now ship 10,000 pieces a month at ±0.02 mm — with a dimensional report on every batch.
304 Stainless Steel Valve
Material: 304 Stainless Steel
Process: Turning + Milling + Polishing
Tolerance: ±0.01mm
Volume: 20,000 pcs / month
Stainless machining is notorious for work hardening, which was burning through the customer's tooling budget. We reworked the toolpath and insert geometry for 304, cut cycle time by 18%, and keep every valve body at ±0.01 mm across 20,000 monthly pieces.
FAQ
Yes. We machine automotive parts under ISO 9001 and IATF 16949 quality systems, with a documented track record of sub-200 PPM quality. Every part is traceable, and every process is controlled.
We submit PPAP Level 3 packages with PFMEA, Control Plans, dimensional results, and material traceability before mass production. 8D reports are available for any anomalies, and complete dimensional reports ship with every batch.
Typical tolerances reach ±0.005 mm on critical features, with CMM and SPC monitoring used to confirm dimensional stability across production runs. First article inspection and in-process patrols are standard.
Yes. We machine aluminum cooling plates and battery trays, brass and copper terminals, and magnesium housings for EV platforms, alongside conventional engine, transmission, and chassis components.
Aluminum, carbon steel, stainless steel, brass and copper, titanium, cast iron, POM and PA, and magnesium alloy — from structural brackets and shafts to gears, valves, and housings.
Upload your 2D/3D drawings and our engineers provide DFM feedback and a preliminary APQP plan within 24 hours. Prototypes ship in 3–7 days, then pilot and volume production follow the same PPAP-controlled process.
Ready to Start Your CNC Project?
Upload your 2D/3D drawings and get a free quote within 24 hours.
Contact Information
Email Us
sales@dgyitech.com
Phone
+86 13392749835
Address
Room 420, Building 22, Changhong Baihui Garden, No.31, Zhangluoxicheng Road,Zhangmutou Town, Dongguan, Guangdong, China