High-precision automotive CNC parts manufactured with advanced CNC turning for shafts, bushings, fittings, and rotational components requiring stable concentricity and repeatable tolerances.
DEK Automotive produces precision automotive CNC parts using CNC turning centers for rotational components in drivetrain, suspension, fuel, and thermal management systems. We machine aluminum, steel, titanium, and engineering plastics with stable dimensional control for prototypes and production requirements.
Maximum Diameter
Tolerance Accuracy
Surface Finish
Our CNC turning centers manufacture precision rotational automotive components with consistent dimensional control. Stable chucking systems and optimized cutting parameters improve machining accuracy for shafts, valve bodies, hubs, sleeves, and threaded automotive parts.
Live ToolingDiameter
Repeat Positioning
Turning Operations
We perform turning, drilling, grooving, threading, and cross-hole machining within single setups to reduce repositioning errors. Multi-axis turning capability improves concentricity and production efficiency for complex automotive cylindrical components and precision assemblies.
Material Grades
Machining Hardness
Roundness Control
Our turning process supports aluminum, stainless steel, alloy steel, brass, titanium, and engineering plastics commonly used in automotive manufacturing. Controlled machining strategies help maintain roundness, surface consistency, and dimensional stability on high-precision rotational components.
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.
| Maximum part size for CNC turning | |
|---|---|
| Part Size Limitations | Metric units |
| Maximum Part Diameter | 431 mm |
| Maximum Part Length | 990 mm |
| Maximum Swing Over the Carriage | 350 mm |
| Maximum Spindle Through-hole | 46 mm |
| CNC Turning Tolerance | ||
|---|---|---|
| Limits for Nominal Size | Plastics(ISO 2768-m) | Metals(ISO 2768-f) |
| 0.5mm*to 3mm | ±0.1mm | ±0.05mm |
| Over 3mm to 6mm | ±0.1mm | ±0.05mm |
| Over 6mm to 30mm | ±0.2mm | ±0.1mm |
| Over 30mm to 120mm | ±0.3mm | ±0.15mm |
| Over 120mm to 400mm | ±0.5mm | ±0.2mm |
| Over 400mm to 1000mm | ±0.8mm | ±0.3mm |
| Over 1000mm to 2000mm | ±1.2mm | ±0.5mm |
| Over 2000mm to 4000mm | ±2mm |
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.
Precision chucking systems and in-process verification maintain stable concentricity for rotating automotive shaft components.
Optimized cutting speeds and tooling reduce chatter marks on visible and sealing automotive cylindrical surfaces.
Controlled threading parameters improve fit consistency for automotive fittings, connectors, and fluid system components.
Balanced cutting strategies reduce deformation on thin-wall aluminum and stainless steel turned automotive components.
Standardized tooling offsets and inspection procedures improve consistency across automotive prototype and production batches.
Roundness tester, roughness tester, CMM
CMM inspection and in-process verification maintain dimensional consistency for automotive CNC turning production requirements.
Verified cylindrical accuracy control
Detailed dimensional inspection records
Traceable certified raw materials
DEK Automotive provides machining analysis, tolerance evaluation, and production planning support for precision automotive CNC turning projects and rotational components.
The transmission shafts arrived with excellent surface finish and very consistent dimensions across the entire production batch. Packaging was secure too.
Powertrain Engineer
We needed stainless steel sensor fittings quickly, and your team handled the threading and tolerances really well. Parts fit perfectly during assembly.
Automotive Prototype Buyer
Honestly happy with the machining consistency on our aluminum bearing spacers. Delivery stayed on time, and every component was clearly labeled.
Senior Manufacturing Manager
Maintaining stable roundness and concentric tolerances for precision automotive rotational CNC turning components.
Combining turning, drilling, and threading operations within single setups to improve machining consistency.
Providing machining reviews and production feedback within 24 hours for automotive turning projects.
Standardized CNC turning processes ensure repeatable dimensional control across prototype and production orders.
We integrate advanced machining, specialized materials, and surface finishing to deliver mission-critical parts that meet every rigorous automotive standard.
Fill out the form below and our team will get back to you promptly with a personalized quote tailored to your needs.
