We manufacture precision automotive CNC parts with multi-axis milling, tight tolerances, and stable repeatability for prototypes, tooling components, and low-to-mid volume production requirements.
DEK Automotive manufactures precision automotive CNC parts using advanced CNC milling systems for aluminum, steel, titanium, and engineering plastics. We support rapid prototyping and production machining for structural, drivetrain, enclosure, and thermal management components requiring stable tolerances and consistent surface quality.
Maximum Part Size
Tolerance Accuracy
Surface Finish
Our CNC milling centers handle complex automotive parts with stable dimensional control across multiple setups. High-speed spindle systems and rigid fixturing improve machining consistency for drivetrain housings, brackets, battery enclosures, and structural aluminum components.
Axis Milling
Spindle Speed
Repeat Positioning
We machine deep pockets, threaded features, sealing surfaces, and precision mounting geometries for automotive assemblies. Optimized tool paths reduce vibration and thermal distortion while improving dimensional consistency across aluminum, stainless steel, and engineering plastic components.
Material Grades
Thin-Wall Features
Maximum Hardness
Our milling process supports lightweight alloys, hardened steels, titanium, and engineering plastics used across automotive systems. Stable cutting parameters help maintain dimensional integrity for thin-wall housings, precision covers, cooling plates, and high-strength structural parts.
Tolerances listed here are minimums for an ideal case. Looser tolerances may be required depending on process, material choice, or part geometry. If you have no detailed requirements for product tolerance, we can follow the following general ISO2768 tolerance table.
| 3-axis Milling | 4-axis Milling | 3+2 Axis Milling | 5-axis Milling | |
|---|---|---|---|---|
| Maximum Part Size | 2000mm x 1500mm x 800mm | 800mm x 550mm x 450mm | 800mm x 550mm x 450mm | 850mm x 950mm x 550mm |
| Minimum Part Size | 0.5mm x 0.5mm x 0.3mm | 0.5mm x 0.5mm x 0.3mm | 0.5mm x 0.5mm x 0.3mm | 0.5mm x 0.5mm x 0.3mm |
| Tolerance | +/-0.005mm | +/-0.005mm | +/-0.005mm | +/-0.005mm |
| Radii(Minimum) | R0.1mm | R0.1mm | R0.1mm | R0.1mm |
Specialized fixtures and optimized cutting parameters reduce vibration and maintain dimensional stability on lightweight aluminum automotive housings.
CMM verification and in-process probing help maintain consistent tolerances for precision automotive sealing and mounting features.
High-rigidity tooling and controlled spindle loads improve machining stability on hardened steel and titanium automotive components.
Optimized milling strategies reduce visible tool marks and improve finishing consistency for cosmetic automotive machined surfaces.
Standardized machining parameters and inspection procedures improve repeatability across low-volume and production automotive orders.
Roundness tester, roughness tester, CMM
CMM inspection and standardized process control ensure dimensional consistency across automotive CNC milling production batches.
Full-dimensional measurement verification
Detailed first article documentation
Certified raw material records
DEK Automotive provides machining guidance, manufacturability evaluation, and process optimization support for precision automotive CNC parts production requirements.
The machined aluminum motor housings came out really clean with consistent dimensions throughout the batch. Packaging was solid too—nothing damaged during overseas shipping.
Manufacturing Engineer
We ordered stainless steel prototype brackets with pretty tight tolerances. Surface finishing looked great, and your engineers responded quickly during revisions.
Automotive R&D Specialist
Honestly impressed by the machining quality on our battery cooling plates. Delivery timing stayed on schedule, and every part arrived properly labeled and protected.
Procurement Manager
Maintaining ±0.01mm machining accuracy for complex automotive CNC milling components and assemblies.
Providing manufacturability and machining recommendations within 24 hours for most automotive projects.
Supporting over 50 engineering metals and plastics for diverse automotive machining requirements.
Standardized CNC milling workflows ensure repeatable quality across batch automotive manufacturing.
We integrate advanced machining, specialized materials, and surface finishing to deliver mission-critical parts that meet every rigorous automotive standard.
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