Let Istar help you get started on your project with our experience and know-how!

Upload your design files and production requirements and we will get back to you within 30 minutes!

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Automotive Precision Machining Services

Automotive precision machining is the process of making super-exact car parts using computer-controlled machines. At Istar Machining, we make parts that fit perfectly in vehicles, from regular cars to race cars and electric vehicles.

Let’s explore how our high-tolerance components can help your automotive business!

CNC Machining Parts

Get a New Quote

Supports uploading of the following file formats: .STEP .STP .SLDPRT .STL .IPT .3MF .3DXML .PRT .SAT .DXF .X_T .X_B .JT .CATPART

20+ Years

Istar Machining's years in the industry

300,000 square feet

The size of Istar Machining's factory

300 CNC machines

Our CNC equipment count

1000 skilled workers

Istar's number of skilled machinists/operators

Automotive Precision Machining Parameters and Uses

Component Type

Typical Tolerances

Materials Used

Common Applications

Benefits

Engine Components

±0.01mm±0.005mm

Aluminum 6061-T6, Steel alloys, Titanium Grade 5

Engine blocks, cylinder heads, pistons

Higher performance, better fuel efficiency

Transmission Parts

±0.015mm

Steel alloys, Aluminum, Brass

Gears, shafts, clutch assemblies

Smoother shifting, less noise, longer life

Fuel System Parts

±0.008mm

Stainless Steel 304/316, Aluminum

Fuel rails, injector nozzles

Precise fuel delivery, better emissions

EV Components

±0.01mm

Aluminum, Copper, Engineered plastics

Motor housings, battery trays, charging ports

Lighter weight, better heat management

Brake Systems

±0.02mm

Cast iron, Stainless steel, Aluminum

Calipers, master cylinders, ABS components

Improved stopping power, safety

Suspension Parts

±0.025mm

Aluminum, Steel alloys

Control arms, steering knuckles

Better handling, durability

 

Our Automotive Precision Machining Technologies

At Istar Machining, we use the latest tools to make perfect car parts:

1. 5-Axis CNC Machining

Our 5-axis machining systems can make complex parts in one setup. This means:

  • Less human error
  • Faster production time
  • Better surface finish

2. CNC Turning for Round Parts

We use advanced CNC turning machines for shafts, bushings, and other round parts that need to be perfect.

3. EDM (Electrical Discharge Machining)

For super-tough materials or tiny details, our sinker EDM machining can cut through the hardest metals with amazing accuracy.

4. Swiss-Type Lathes

For small, precise parts like fuel injector components, our Swiss machines work to tolerances as small as ±0.005mm!

Materials We Work With for Automotive Parts

Istar Machining can work with almost any material needed for modern vehicles:

  • Aluminum Alloys: Lightweight parts for better fuel economy
  • Stainless Steel: For parts that need to resist rust and heat
  • Titanium: When strength and light weight are both important
  • Engineered Plastics: For lightweight, heat-resistant components
  • Copper: For electrical components in modern vehicles
  • Brass: For fuel system components and fittings

Popular Automotive Applications

Engine Block Milling (±0.01mm)

Our Engine block milling service creates perfectly flat surfaces for head gaskets. This means:

  • No oil leaks
  • Better compression
  • More engine power

EV Battery Housing CNC

We make EV battery housing components that:

  • Protect batteries from damage
  • Help manage heat
  • Meet tight tolerances for perfect fits

Fuel System Components

Our fuel system parts work with exact ISO 9001 machining standards for:

  • Perfect fuel spray patterns
  • Better fuel economy
  • Lower emissions

Why Choose Istar Machining for Automotive Parts?

  1. Ultra-Precision: Our machines work to the finest details, often achieving tolerances of ±0.005mm (thinner than a human hair!)
  2. Quality Control: We test every part with advanced measuring tools like CMM (Coordinate Measuring Machines).
  3. Materials Expertise: We know which materials work best for each car part, from engine blocks to EV components.
  4. Modern Facilities: Our CNC machining service uses the latest DMG Mori and Makino machines.
  5. Fast Turnaround: We can deliver prototype parts in days, not weeks.

Industries We Serve

Istar Machining works with all major automotive sectors:

  • OEM Manufacturers: Making parts for new vehicles
  • Tier 1 & 2 Suppliers: Working as part of the supply chain
  • Aftermarket Parts: Helping improve existing vehicles
  • Racing & Performance: Creating parts that win races
  • Electric Vehicles: Building the transportation future
  • Heavy Duty/Commercial: Supporting trucks and commercial fleets

Case Studies: Our Automotive Success Stories

High-Performance Racing Team

We helped a professional racing team by making custom aluminum steering components that were 40% lighter but just as strong as the original parts. Their cars gained a competitive edge!

Electric Vehicle Startup

Our team created precision battery tray components for a new electric vehicle. The parts were made with tight tolerances that helped the company’s cooling system work better, giving their cars longer range.

How Our Process Works

  1. Send us your designs or work with our engineering team
  2. Get a fast quote with detailed pricing
  3. We make prototype parts for testing
  4. Approve the final design
  5. Full production with ongoing quality checks

Quality Standards We Follow

At Istar Machining, we strictly follow these quality standards:

  • ISO 9001:2015 certified processes
  • AS9100 standards (aerospace-grade quality)
  • IATF 16949 automotive standards
  • 100% inspection of critical dimensions

Your Next Steps

Ready to improve your automotive components with precision machining? Here’s how to start:

  1. Upload your CAD files for a quick quote
  2. Talk to our engineering team about your project
  3. Get sample parts made for testing

 

Contact Istar Machining Today

Don’t settle for average parts when your vehicles deserve the best. Contact Istar Machining today to discuss your automotive CNC machining project!

Frequently Asked Question

We regularly achieve tolerances as tight as ±0.005mm for critical components.

Both! We can make prototype parts or thousands of production parts.

Yes! Our engineering team can suggest changes to make parts better, lighter, or less expensive.

We work with all major CAD formats including STEP, IGES, SolidWorks, and AutoCAD.

Please enable JavaScript in your browser to complete this form.
Click or drag files to this area to upload.You can upload up to 5 files.
Supports uploading of the following file formats: .step, .stp, .iges, .igs, .x_t, .x_b, .sat, .sldprt, .sldasm, .ipt, .iam, .prt, .asm, .pdf, .dwg, .dxf

Ready to Start Your Next CNC Machining Project?

Let Istar Machining’s 20+ years of expertise and comprehensive machining capabilities bring your designs to life. Use CNC machining with a proven partner. Request a quote today for competitive pricing and expert support for your custom parts.

WhatsApp / Phone

+86 18770974054

Address

303, Building 3, Xinggang Tongchuanghui, Fuhai Street, Baoan District, Shenzhen, Guangdong, China 518103

Please enable JavaScript in your browser to complete this form.
Click or drag files to this area to upload.You can upload up to 5 files.
Supports uploading of the following file formats: .step, .stp, .iges, .igs, .x_t, .x_b, .sat, .sldprt, .sldasm, .ipt, .iam, .prt, .asm, .pdf, .dwg, .dxf
Please enable JavaScript in your browser to complete this form.
Click or drag files to this area to upload.You can upload up to 5 files.
Supports uploading of the following file formats: .step, .stp, .iges, .igs, .x_t, .x_b, .sat, .sldprt, .sldasm, .ipt, .iam, .prt, .asm, .pdf, .dwg, .dxf