Precision CNC Machining & Custom Manufacturing Services

ISO 9001:2015 certified solutions bridging Rapid Prototyping and Volume Production. Delivering $pm 0.01pm 0.01text{mm}$ precision for complex Aerospace, Medical, and Robotics components. Learn more about our certification.

Facility Showcase: The Evidence of Precision

Skip the middlemen and partner with a direct CNC manufacturer. Our 5,000㎡ manufacturing hub is built on transparency, housing the hardware and expertise required for high-stakes industrial components. Explore our showcase gallery to see our capabilities in action.

Coordinate Measuring Machine in ProtoBatch CNC facility

CMM Lab & Metrology Excellence

Every part undergoes rigorous dimensional verification in our in-house CMM lab. We ensure 100% adherence to your GD&T requirements, validating critical features with tolerances as tight as $pm 0.005text{mm}$ to guarantee perfect assembly fit.

  • ISO 9001:2015 certified quality management systems
  • In-house machining for total process control and visibility
  • Full documentation including FAI, CoC, and Material Certifications

Direct CNC Manufacturing at Scale

ProtoBatch CNC operates a high-capacity machine shop in China featuring 50+ imported 3/4/5-axis milling centers and Swiss lathes. This allows us to scale seamlessly from rapid prototyping to volume production in-house.

Our 30+ resident engineers provide direct engineering support and DFM optimization, ensuring your CAD designs are realized with maximum cost-efficiency and technical integrity at every stage.

ProtoBatch CNC facility showcasing inspection processes

Your Partner for Comprehensive CNC Machining & Precision Manufacturing Solutions

ProtoBatch CNC offers end-to-end CNC machining services, designed for precision and reliability. We transform complex designs into high-performance components, leveraging advanced multi-axis technology to meet the stringent demands of global industrial leaders.

  • 3, 4, and 5-axis milling and turning for complex geometry parts
  • Extensive material versatility: Aluminum, Titanium, Stainless Steel, and PEEK
  • Tight tolerance machining up to ±0.01mm (±0.0004") precision
  • Scalable production from rapid prototyping to high-volume mass production
  • Full GD&T compliance with in-house CMM inspection and FAI report support
High-precision 5-axis CNC machining center in operation
High precision CNC machined aluminum component

Tight Tolerance Machining

Our advanced CNC equipment consistently achieves micron-level accuracy for critical aerospace and medical components.

Multi-axis CNC milling process for complex geometries

Complex Geometry Support

Leveraging 5-axis linkage centers to manufacture intricate parts with reduced setups and superior surface finishes through advanced machining techniques.

Technical drawing for GD&T compliance and quality assurance

Full GD&T Compliance

Rigorous quality assurance protocols ensure every dimension aligns perfectly with your technical CAD specifications.

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Specialized Machining Processes & Capability Matrix

High-Precision CNC Milling & Turning

Our subtractive manufacturing center utilizes advanced 3, 4, and 5-axis CNC milling to produce high-precision machined components with absolute GD&T compliance.

ProtoBatch CNC specializes in tight tolerance machining, maintaining accuracy within ±0.01mm for complex geometry parts across Aerospace-grade Aluminum and Stainless Steel.

By integrating precision turning and mill-turn compound processes, we ensure coaxiality under 0.005mm for critical industrial shafts, pins, and valve bodies.

High precision CNC milling and subtractive manufacturing
Specialized Swiss machining and Wire EDM capabilities

Advanced Swiss Machining & Wire EDM

Our rapid prototyping workflow allows for functional prototypes in real production materials, delivering quick-turn parts in as little as 24 hours to bridge the gap to mass production.

We leverage specialized sinker EDM and multi-axis linkage to manufacture complex surfaces and deep cavities that exceed the limitations of traditional machining.

For micro-machined parts and ultra-hard materials, ProtoBatch CNC provides specialized Swiss machining screw machining and Wire EDM services to achieve intricate internal features.

At ProtoBatch CNC, the synergy of multi-axis milling, Swiss turning, and EDM specialty processes empowers your product lifecycle with unmatched precision, speed, and cost-efficiency.

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Technical Strength & Precision Engineering Capabilities

High Precision Subtractive CNC Machining Process

Advanced Infrastructure for Complex Manufacturing

Our facility is powered by high-performance 5-axis linkage centers and turn-mill compounds, designed to handle the most demanding complex geometry parts. By integrating multi-axis technology, we eliminate redundant setups, ensuring superior axial alignment and tight tolerance machining for mission-critical components. Learn more about our about page.

Ultra-Precision Tolerance Control

We strictly adhere to ISO 2768-m/f standards, with the capability to hold critical features within ±0.005mm. This level of precision is essential for aerospace, medical, and semiconductor applications.

Extensive Machining Envelope

Our versatile machine shop supports large part machining with milling capacities up to 1500 x 800 x 600 mm and precision turning for diameters up to Φ 400 mm.

Digital DFM & Quality Assurance

Every project undergoes automated DFM (Design for Manufacturing) analysis and is validated in our CMM lab, ensuring 100% compliance with your GD&T specifications before dispatch. For inquiries, please visit our contact page.

High-Performance CNC Material Selection

At ProtoBatch, we bridge design and durability with an extensive inventory of certified raw materials. From aerospace-grade aluminum to high-temp engineering plastics, we ensure your precision components meet exact mechanical and chemical specifications.

Every batch is verified for traceability and machinability. Whether you require the extreme strength-to-weight ratio of Titanium Grade 5 or the chemical resistance of PEEK, our material library is optimized for both rapid prototyping and volume production.

Metal and plastic CNC machining material samples

High-Strength Metal Alloys

Engineered for structural integrity and corrosion resistance. Ideal for Aerospace, Medical, and Automotive CNC parts requiring tight tolerances and superior finishes.

  • Aluminum 6061-T6, 7075-T6, MIC6
  • Stainless Steel 304, 316L, 17-4PH
  • Titanium Grade 5, Brass, Copper

Engineering Plastics & Polymers

Optimized for electrical insulation, low friction, and lightweight functional prototypes. We specialize in precision plastic machining for complex geometries and wear-resistant parts.

  • PEEK, Delrin (POM), PTFE (Teflon)
  • Nylon (PA6/66), ABS, Polycarbonate
  • Ultem (PEI) & Carbon Fiber Reinforced

Specialty & Certified Materials

Need AS9100 compliant alloys or FDA-approved medical plastics? We source specialty materials with full MTR (Material Test Reports) and CoC documentation.

Our engineering team provides expert DFM advice to help you select the most cost-effective material for your specific application and tolerance requirements.

GD&T Compliance & Precision Quality Assurance

At ProtoBatch CNC, we bridge the gap between complex engineering designs and physical reality. As an ISO 9001:2015 certified direct manufacturer, we utilize advanced metrology and rigorous quality assurance control to ensure every component adheres strictly to your GD&T specifications for seamless assembly and peak functional performance.

  • Micron-level accuracy with CMM inspection and tight tolerances up to ±0.005mm
  • Comprehensive QC documentation including FAI reports, CoC, and Material Certs (MTR)
  • Full material traceability and in-house testing ensuring batch-to-batch consistency
Automated CMM inspection for high-precision CNC machined aerospace parts

Trusted CNC Solutions for Diverse Industries

From AS9100-compliant flight components to FDA-grade surgical tools, ProtoBatch delivers industry-specific CNC machining that meets the world’s most rigorous GD&T and performance standards.

Aerospace CNC parts and defense components

Aerospace & Defense

High-strength, lightweight aerospace CNC parts engineered for extreme environments. We ensure full compliance for complex turbine components and structural airframe brackets.

Medical device machining for implants and instruments

Medical & Healthcare

Precision medical device machining using biocompatible Titanium and 316L Stainless Steel. Delivering high-polish finishes and micron-level accuracy for implants and surgical instruments.

Automotive CNC parts with PPAP compliance

Automotive & EV

Scalable automotive CNC milling parts manufacturing with strict adherence to PPAP standards. Reliable solutions for powertrain components and high-performance electric vehicle housings.

Robotics parts manufacturing and precision automation

Robotics & Automation

Specialized robotics parts manufacturing for multi-axis arms and precision sensors. Expert 5-axis milling ensures perfect alignment and smooth mechanical motion for automated systems.

Electronic housing machining and heat sinks

Electronics & Semiconductors

Custom electronic housing machining and high-performance heat sinks. We excel in thin-wall aluminum fabrication and precision surface finishing for sensitive high-end hardware.

Industrial machinery parts and GD&T compliance

Industrial Equipment

Rugged custom manufacturing for industrial valve bodies, manifolds, and casings. Built for durability with strict GD&T compliance to ensure long-term field reliability.

Custom Production & Rapid Delivery

ProtoBatch CNC accelerates your time-to-market by bridging the gap between design and reality. Whether you require rapid prototyping or low volume production, our facility offers the flexibility to scale without minimum order constraints, ensuring your precision components are delivered on schedule.

  • No MOQ Flexibility: Support for 1-piece prototypes to 1,000+ units, providing cost-effective solutions for every stage of product development.
  • Quick Turn Manufacturing: 24-hour production starts and optimized workflows ensure short lead times for aerospace, medical, and robotics projects.
  • Seamless Integration: One-stop service from DFM optimization to surface finishing, ensuring parts are assembly-ready upon arrival.
High-speed CNC machining for custom production and rapid delivery

Integrated Digital DFM Workflow

ProtoBatch CNC bridges the gap between complex CAD designs and high-precision manufacturing through automated DFM analysis and real-time engineering feedback. To fully leverage these solutions, please use our About Us page for more background information.

Automated DFM analysis for precision machined components

Automated Geometry Analysis

Our proprietary platform instantly evaluates STEP, IGS, and X_T files against real-world CNC machining constraints, identifying non-manufacturable features before the first cut.

By analyzing wall thickness, hole depths, and internal radii, we ensure your precision parts are optimized for ±0.01mm tolerance standards.

Technical Advantage

Eliminate costly engineering change orders (ECOs) and reduce design iteration cycles by up to 60% with instant validation.

Centralized Project Management

Manage your entire production lifecycle—from rapid prototyping to mass production—through a secure, user-friendly digital dashboard.

Our interface provides transparent visibility into machining status, quality documentation, and GD&T compliance reports.

  • Instant CAD file processing with automatic format and feature recognition
  • Visual heatmaps highlighting potential tool access and tolerance issues
  • Direct collaboration tools for real-time DFM optimization with our engineers
ProtoBatch online CNC quote and DFM analysis interface

2-Hour Quoting

Receive comprehensive manufacturability reports and transparent pricing within hours of file upload.

GD&T Validation

Automatic alignment of digital designs with ISO 2768 standards for guaranteed assembly fit and function.

Accelerated TTM

Shorten Time-to-Market by bypassing manual reviews and moving directly into 24-hour rapid production.

Ready to Optimize Your CNC Project?

Upload your CAD files today to receive professional DFM suggestions and factory-direct pricing for your precision components.

Precision Machining & Quality Portfolio

Subtractive vs Additive CNC Manufacturing

Subtractive Precision Engineering

Comparative analysis of material integrity in subtractive CNC machining versus additive methods for high-stress applications.

Complex CNC Machined Components

High-Complexity Machined Parts

Showcasing ProtoBatch CNC’s capability in 5-axis milling for aerospace and medical components with ±0.01mm tolerances. Explore more in our gallery of precision machining case studies.

GD&T CMM Inspection Process

Automated GD&T Verification

In-house CMM inspection protocols ensuring 100% compliance with critical geometric dimensioning and tolerancing specs.

CNC Material Removal Visualization

Multi-Axis Process Control

Step-by-step visualization of precision material removal for complex geometries and thin-walled structural components.

3D Metrology and Part Validation

Industrial 3D Metrology

Advanced optical and contact inspection solutions for validating surface finishes and complex assembly interfaces.

ISO 2768 GD&T Standards Chart

Global GD&T Compliance

Expert implementation of ISO 2768 and ASME Y14.5 standards to ensure universal interchangeability of precision parts.

Ready to Start Your High-Precision Project?

Upload your CAD files for professional DFM feedback and transparent factory-direct pricing. We ensure strict GD&T compliance and ISO 9001 quality standards for your most critical aerospace, medical, and industrial components. If you want to learn more about our quality commitments, please visit our about page.

GD&T compliant precision CNC machining and inspection