GreatLight CNC Machining Factory Logo
127 Sets High-Precision CNC Lathes
15 Years of Experience
Custom Based on Drawings
GreatLight CNC Machining Factory Logo
Custom Based on Drawings
127 Sets Processing 4000mm 127 Sets High-Precision CNC Lathes
15 Years of Experience

Auto Parts

Precision CNC Machined Auto Parts. GreatLight specializes in high-quality, custom automotive components with tolerances to ±0.001mm. Get durable, reliable parts for performance & classic cars. ISO 9001:2015 certified.

About GreatLight

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Development History
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What Are Precision CNC Machined Auto Parts?

Precision CNC machined auto parts represent the pinnacle of automotive component manufacturing, where computer numerical control (CNC) technology transforms raw materials into exact specifications with tolerances as tight as ±0.001mm. These components form the critical backbone of modern vehicles, ensuring optimal performance, safety, and longevity across all automotive systems.

Critical Applications of CNC Automotive Components in Vehicle Systems

Engine and Powertrain Components

The heart of your vehicle demands absolute precision. Our CNC machined auto parts include:

  • Custom pistons and piston sleeves with optimized thermal expansion characteristics

  • Precision crankshafts and camshafts balanced for maximum rotational efficiency

  • Transmission gears and synchronizers with perfect tooth profiles for smooth shifting

  • Valve train components including rocker arms and lifters with hardened surfaces

  • Turbocharger compressor wheels and housings for boosted applications

Suspension and Steering Systems

Safety-critical components where precision matters most:

  • Custom steering knuckles and uprights for performance applications

  • Control arms with precisely located mounting points for optimal geometry

  • Billet shock absorber mounts and suspension linkages

  • Power steering components and precision gear racks

  • Anti-roll bar linkages and mounting brackets

Braking System Components

Where absolute reliability is non-negotiable:

  • Custom brake caliper brackets and mounting plates

  • Brake pedal assemblies with precisely located pivot points

  • Master cylinder mounts and brake line brackets

  • Performance rotor hats and bell assemblies

  • Emergency brake mechanisms and components

Material Selection for High-Performance Automotive Applications

Aluminum Alloys for Weight-Critical Applications

  • 6061-T6 for general structural components with excellent strength-to-weight ratio

  • 7075-T6 for high-stress applications requiring superior strength

  • 2024 for applications demanding good fatigue resistance

  • A380 for complex die-cast components requiring secondary machining

Steel and Specialty Alloys for High-Stress Environments

  • 4140 chromoly for high-strength structural components

  • 4340 for critical load-bearing applications

  • Stainless steel 304 and 316 for corrosion-resistant applications

  • Tool steels for wear-resistant components and jigs/fixtures

Advanced Composites and Plastics

  • PEEK for high-temperature engine bay applications

  • UHMW-PE for low-friction wear surfaces

  • Nylon and Acetal for bushings and isolation components

  • Carbon fiber composites for ultra-lightweight structural panels

The GreatLight Advantage in Automotive CNC Machining

Unmatched Precision Capabilities

Our commitment to precision sets us apart in automotive manufacturing:

  • 5-axis simultaneous machining for complex geometries in single setups

  • High-speed machining centers maintaining ±0.001mm tolerances

  • Advanced CMM inspection with 1.2µm accuracy for comprehensive verification

  • Surface finishes from Ra 0.2µm to Ra 3.2µm as specified

  • Roundness within 0.5µm and flatness to 1µm for critical sealing surfaces

Rapid Prototyping and Production Flexibility

  • Functional prototypes in 3-7 days for design validation

  • Low-volume production runs from 1-1,000 pieces

  • High-volume manufacturing capacity up to 10,000+ monthly

  • Design for Manufacturing (DFM) analysis to optimize part production

  • Engineering support for design optimization and cost reduction

Quality Assurance and Certification Standards

Comprehensive Quality Management

  • ISO 9001:2015 certified quality management system

  • First article inspection reports with full dimensional validation

  • Statistical process control throughout production runs

  • Material certification and traceability for all raw materials

  • Full documentation package with each shipment

Advanced Metrology and Verification

  • Zeiss Contura CMM with 1.2µm accuracy

  • Optical comparators for rapid feature verification

  • Surface roughness testers for finish validation

  • Hardness testers for material verification

  • Custom gauge and fixture creation for production monitoring

Industries and Applications Served

Performance and Racing Applications

  • Motorsports components with weight optimization

  • Custom adapter plates and mounting solutions

  • One-off prototype components for development vehicles

  • Restoration parts for classic and vintage automobiles

  • Upgrade components for enhanced vehicle performance

Commercial and Industrial Vehicle Components

  • Heavy truck and bus components

  • Agricultural equipment parts

  • Construction vehicle components

  • Municipal vehicle applications

  • Specialty vehicle manufacturing

The Manufacturing Process: From Design to Finished Part

Design and Engineering Phase

  • CAD model analysis and optimization

  • DFM report generation and review

  • Process planning and toolpath optimization

  • Fixture design and manufacturing

  • Quality plan development

Production and Validation

  • Multi-axis machining operations

  • In-process quality verification

  • Secondary operations and finishing

  • Final inspection and documentation

  • Packaging and shipment preparation

Why Choose GreatLight for Your Automotive CNC Machining Needs?

With over a decade of specialized experience in precision automotive components, GreatLight combines technological excellence with practical automotive knowledge. Our engineers understand the unique demands of automotive applications, from daily drivers to championship-winning race cars. We partner with our clients to deliver solutions that not only meet specifications but exceed performance expectations.

Our commitment to quality, precision, and service has made us the trusted manufacturing partner for automotive OEMs, performance shops, and restoration specialists worldwide. We understand that in the world of automotive components, there is no room for compromise – which is why we maintain the highest standards in everything we produce.

Get Started with Your Automotive Project Today

Ready to elevate your automotive project with precision CNC machined components? Contact our engineering team today for a comprehensive design review and quotation. Send your CAD files to [email protected] or visit our website to learn more about our complete automotive manufacturing capabilities. Let us help you bring your vision to life with the precision and quality your project deserves.

Great Light - Leader in CNC Machining

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Company promotional video

GreatLight Metal Technology Co., Ltd

Great Light was founded in 2011, Adjacent to Shenzhen, And is located in Chang’an, Dongguan City, The capital of precision processing of hardware molds.

Factory is about 7,600 square meters, With 150 employees, Equipped with large high-precision 5-Axis, 4-Axis, 3-Axis CNC Machining centers, Lathes, Milling machines, Grinders, Spark machines, Vacuum mold machines, SLM 3D Printers, SLA 3D Printers, SLS 3D Printers and other peripheral equipment precision equipment 127 sets, With 3 wholly-owned manufacturing factories, Is a production enterprise specializing in precision processing of rapid prototyping handboard models.

Great Light focuses on the design, processing, customized production and application of precision handboard models, Providing new and old users with precision CNC Processing services (three-axis, four-axis, five-axis processing), CNC Milling services, Die-casting molds/metal die-casting processing services, Vacuum casting customization, Sheet metal processing customization, Stainless steel 3D printing, Aluminum alloy 3D printing, Titanium alloy 3D printing, Mold steel 3D printing and nearly 100 kinds of rapid prototyping processing services and comprehensive solutions. And it is equipped with a one-stop post-surface processing service.

Great Light has many years of experience in precision prototype model processing, With high precision (±0.001mm / 0.001 In and above precision requirements can be processed), After-sales guarantee, Free rework for quality issues.

  • Five-Axis CNC
  • Four-Axis CNC
  • Three-Axis CNC
  • Milling & Turning

CNC Technology
5-Axis
Five-Axis CNC
4-Axis
Four-Axis CNC
3-Axis
Three-Axis CNC
CNC Milling
Milling & Turning
Machining Materials Including But Not Limited To：
 Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel Aluminium, Brass, Inconel, Tool Steel, Tool Stee, Titanium, Alloy Steel, Stainless steel, Copper, Low Carbon Steel
Material Abbreviation
 AL / SS / Brass / Steel / TC4 AL / SS / Brass / Steel / TC4 AL / SS / Brass / Steel / TC4 AL / SS / Brass / Steel / TC4
Specification
 Various sizes and thicknesses of plates and round bars Various sizes and thicknesses of plates and round bars Various sizes and thicknesses of plates and round bars Various sizes and thicknesses of plates and round bars
Common Post-processing
 Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing Oil spraying, powder spraying, passivation, oxidation, blackening, electrophoresis, silk screen printing, laser engraving, polishing
Tolerance Range
 ±0.001mm / 0.001 In and above precision requirements can be processed ±0.001mm / 0.001 In and above precision requirements can be processed ±0.001mm / 0.001 In and above precision requirements can be processed ±0.001mm / 0.001 In and above precision requirements can be processed
Advantage
 Multi-faceted structural products can be formed in one go with high precision High efficiency, re-cutting capability, simple operation, high precision, and good surface effect High efficiency, re-cutting capability, simple operation, high precision, and good surface effect High precision, good surface finish, and high efficiency
Shortcoming
 The size of the processed products is limited, the processing speed is slow, and the cutting is light
Main Fields
 Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc. Prototype, automobile, medical, digital electronics, toys, mechanical equipment, aerospace, etc.
Maximum Processing Size Of The Equipment
 4000*400*150mm 750x1150x550mm 600*600*600mm 500*500*450mm 500*310*200mm 1575*157*60In 295x452x216In 236*236*236In 200*200*177In 200*122*78.7In 1500*800*300mm 800*500*400mm 600*400*300mm 590*315*118In 315*200*157In 236*157*118In 1500*800*300mm 800*500*400mm 600*400*300mm 590*315*118In 315*200*157In 236*157*118In Diameter 500mm / 200 In
Processing Capabilities
 16 Units 12 Units 27 Units 16 Units
Standard Lead Time
 3 Business Days 3 Business Days 3 Business Days 3 Business Days
Starting Price: $11/H Starting Price: $11/H Starting Price: $9/H Starting Price: $9/H
development history

Precision Forged by Light, Excellence Driven by Innovation

Great Light Technology continues to pioneer CNC industry advancements, empowering high-end manufacturing, smart industries, and global supply chains, leading the intelligent manufacturing revolution!

Five-axis CNC
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Four-axis CNC
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Three-axis CNC
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CNC Milling & Turning
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Prototype Custom
Mass Production

Rapid Prototyping Services

Covered
10+
Manufacturing Process
CNC Milling

CNC Grinding

CNC Turning

99%

Product Pass Rate

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five axis machining

Testimonials

See What Our Happy Customers Say

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Solved our harmonic drive backlash! GreatLight’s 0.001″ concentricity on 7075-T6 joints boosted positioning repeatability 5x. 5 revisions in 2 weeks – insane agility!

Case Studies
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Alison Burgas

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Slashed EV battery housing costs by 33%! Their 5-axis CNC achieved perfect cooling channel alignment (±0.03mm) we couldn’t get elsewhere. On-time delivery for 10k units!

Case Studies
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Mark Adam

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From CAD to flight-ready titanium arms in 5 days! 0.05g imbalance allowed 40min extra flight time. Scrapped 3 ‘experts’ before finding these wizards. Game-changer!

Case Studies
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Lio Hernandez

sgs certification

SGS Certification

iso standards

ISO Standards

environmental compliance

Environmental Compliance

customer satisfaction

Customer Satisfaction

continuous improvement

Continuous Improvement

Product Ordering FAQs

Q1: Are you a manufacturer or a trading company?

A1: We are a professional manufacturer with very good production experience. We can accept OEM, ODM according to your needs, and guarantee competitive price and quality.

4 Axis CNC Machining Shop Near Me
CNC Machining Shop Near Me
Q2: Do you provide samples? Free or extra charge?

A2: Yes, we can provide free samples for stock, you only need to pay the shipping cost. Customized goods require a partial deposit, which can be deducted in the order.

Q3: How does your factory do in quality control?

A3: We are ISO9001 certified factory, and have a professional QC team to check every item from production to packaging.

Q4: What is your delivery time?

A4: Generally 2-5 days after payment for stock products, and 10-15 days after payment for customized goods.

Q5: What are your payment terms?

A5: Generally, new customers pay T/T50% as deposit, and 50% balance before delivery. The specific situation can be negotiated, and old customers can set a credit limit.

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ISO 9001 Certificate

ISO 9001 is defined as the internationally recognized standard for Quality Management Systems (QMS). It is by far the most mature quality framework in the world. More than 1 million certificates were issued to organizations in 178 countries. ISO 9001 sets standards not only for the quality management system, but also for the overall management system. It helps organizations achieve success by improving customer satisfaction, employee motivation, and continuous improvement. * The ISO certificate is issued in the name of FS.com LIMITED and applied to all the products sold on FS website.

greatlight metal iso 9001 certification successfully renewed
GB T 19001-2016 IS09001-2015
✅ iso 9001：2015
greatlight metal iso 9001 certification successfully renewed zh

IATF 16949 certificate

IATF 16949 is an internationally recognized Quality Management System (QMS) standard specifically for the automotive industry and engine hardware parts production quality management system certification. It is based on ISO 9001 and adds specific requirements related to the production and service of automotive and engine hardware parts. Its goal is to improve quality, streamline processes, and reduce variation and waste in the automotive and engine hardware parts supply chain.

automotive industry quality management system certification 01
Certification of Production Quality Management System for Engine Hardware Parts Engine Hardware Associated Parts
automotive industry quality management system certification 00
发动机五金零配件的生产质量管理体系认证

ISO 27001 certificate

ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard.

greatlight metal technology co., ltd has obtained multiple certifications (1)
greatlight metal technology co., ltd has obtained multiple certifications (2)

ISO 13485 certificate

ISO 13485 is an internationally recognized standard for Quality Management Systems (QMS) specifically tailored for the medical device industry. It outlines the requirements for organizations involved in the design, development, production, installation, and servicing of medical devices, ensuring they consistently meet regulatory requirements and customer needs. Essentially, it's a framework for medical device companies to build and maintain robust QMS processes, ultimately enhancing patient safety and device quality.

greatlight metal technology co., ltd has obtained multiple certifications (3)
greatlight metal technology co., ltd has obtained multiple certifications (4)

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