Custom Precision CNC Machining & Milling Services in China
ISO 9001 Certified | ±0.005 mm Tolerance | 12-Hour Fast Quoting
Fast, professional CNC machining for rapid prototyping and small- to large-batch production.
- Reliable On-Time Delivery
- Tolerances as Tight as ±0.005 mm
- Custom Surface Finishing Options
- Strict Customer Data Protection
- Competitive Direct Factory Pricing
Our CNC Machining Services
CNC Milling Services
Our 3, 4, and 5-axis CNC machining services produce components of any geometry with dimensional tolerances down to 0.002".
CNC Turning Services
CNC turning with power tools combines lathe and milling functions for machining parts with cylindrical features.
Surface Finishing
We provide surface treatment services, including anodizing, sandblasting, powder coating, electroplating, etc..
Our Simple 4-Step Process
From design to delivery, we streamline the custom machining process for rapid turnaround and exceptional quality.
Upload your CAD files. Get a quote within 24h and free design feedback.
Rapid machining of sample parts (T1) for your verification and fit-check.
Full-scale manufacturing using our 200+ CNC machines. Automated scheduling.
CMM inspection, material reports, and secure global shipping.
Production Facilities & Quality Control
Our state-of-the-art facilities ensure precision, consistency, and timely delivery for every order.
Manufacturing Capabilities
- 2 specialized factories with 200+ CNC machines
- 3-axis, 4-axis & 5-axis milling centers
- Multi-axis turning with live tooling
- Swiss-type lathes for precision small parts
- EDM and grinding available on request
- Prototyping to full-scale production
Quality Assurance
- Import CMM (Coordinate Measuring Machine)
- Material testing and certification
- Optical comparators and height gauges
- Surface roughness testers
- First article inspection (FAI) reports
- ISO 9001:2015 quality management system
Industries We Serve
- Automotive & motorcycle components
- Consumer electronics & smart devices
- Medical equipment & devices
- Industrial machinery & automation
- Hydraulic systems & valve blocks
- Aerospace & defense (certified suppliers)
CNC Machining Tolerances
| Capability | Standard |
|---|---|
| Max Part Size |
• Milling: 2032 × 1219 × 610 mm • Turning: Ø813 × 1575 mm |
| General Tolerance | ISO 2768-mk |
| Tight Tolerance | ±0.005mm — on request with GD&T |
| Min Feature Size | 0.5 mm — depends on material & geometry |
| Surface Finish | 125 Ra or smoother |
| Angularity |
• ≤610 mm: ±0.5° • >610 mm: ±1.0° |
| Min Part Size |
2 mm overall Min hole/bore: 0.3 mm |
Tolerances apply to standard quotes. Custom requirements reviewed by engineers.
Quick Material Selection Guide
Not sure which material to choose? Use this quick guide based on common project requirements for automotive, medical, and consumer electronics.
Best for non-critical structural parts, brackets, and large housings where budget is key.
Recommend: Al 6061, ABS, Acetal (Delrin)
For gears, automotive components, and high-stress mechanical parts.
Recommend: Steel 4140, SS 304, Titanium Gr5
Best for consumer electronics housings requiring anodizing or polishing.
Recommend: Al 6063, PMMA (Acrylic), Brass
For medical devices, hydraulic manifolds, and harsh environments.
Recommend: PEEK, SS 316L, Teflon (PTFE)
Materials We Work With
We offer a wide range of materials for CNC machining to meet the diverse needs of various industries. Our selection includes high-grade metals—specializing in custom cnc aluminum parts—as well as plastics and composites to ensure that your parts are manufactured with the best-suited material for your application.
Metal Materials
Common Metals
Specialty Metals
Plastic Materials
Common processing materials
We offer CNC machining services for 100+ materials, with instant online quotations available. Should your required material not appear in our inventory list, please submit your bespoke requirements directly for review by our specialist engineers.
Examples of our CNC machining services
Specializing in precision CNC milling services (including multi-axis & prototype machining) and CNC turning, we machine over 100 materials for industries from automotive to aerospace.
With capability to process over 100 materials including metals, plastics, and new composites, we have the versatility for your project. Bring your design to life: contact us for a quote or explore our manufacturing gallery for inspiration.
Classic CNC Machining Case Studies:
- Heavy Machinery / Hydraulics
Cost Optimization for Hydraulic Valve Blocks
A European client faced high costs with 5-axis machining. Our DFM engineers redesigned the part for 4-axis production without compromising the pressure rating, achieving significant savings.
We remain committed to meeting our customers' diverse customisation requirements!
CNC Machining Surface Finishes
Elevate your components with our expert finishing services. We provide tailored solutions and immediate pricing for every need.
Machining finish. Clean, consistent surface.
Matte texture by glass beads. Smooth and uniform.
Linear texture. Sleek look, resists fingerprints.
Oxide layer. Corrosion resistance, color options.
Thick oxide layer. High wear resistance.
Protects against corrosion, keeps conductivity.
High-gloss polish. Clear, mirror-like finish.
Ultra-smooth surface. Reflective, premium look.
Screen printed designs. Durable logos, text.
Permanent marks. Perfect for serial numbers.
Heat-cured coating. Strong protection.
Thin metal layer. Enhanced hardness, finishes.
Why choose us as your CNC machining service provider?
Whether it’s a quick prototype, a few custom parts, or a large production run, we’re on it!
We bridge the gap for companies with strong brands but limited production capacity. We are your external factory.
- Cost-Effective Mold & Setup
- Free DFM Support
- Rigorous Quality Control
- Low Volume, High Flexibility
- Confidentiality Guaranteed with NDA
Customize your parts with ease!
- +86 1996 3099 511
- quote@alliedcn.com
Our Factory Insight
With 200+ machines across 2 specialized facilities, we deliver precision parts from prototype to production.
Industries We Serve
Allied Metal Solutions provides precision CNC machining services across diverse industries. With specialized expertise and state-of-the-art equipment, we deliver high-quality custom parts for your specific applications.
Motorcycle
Performance & Custom Parts
Precision CNC machining for motorcycle components, from OEM replacements to custom performance upgrades. We work with various materials to meet durability and weight requirements.
- Common Custom Parts
- Engine Brackets & Mounts
- Brake Calipers & Discs
- Suspension Linkages
- Triple Clamps
- Footpegs & Levers
- Sprocket Carriers
- Exhaust Flanges
- Handlebar Clamps
Automotive
OEM & Aftermarket Components
High-precision automotive components for both traditional and electric vehicles. Our CNC machining meets strict automotive industry standards for quality and performance.
- Common Custom Parts
- Engine Brackets & Mounts
- Transmission Housings
- Suspension Components
- Battery Trays (EV)
- Brake System Parts
- Intake Manifolds
- Steering Components
- Sensor Mounts
Aerospace
Precision Flight Components
CNC machining for aerospace applications with stringent tolerances and material certifications. We produce lightweight, high-strength components for critical flight systems.
- Common Custom Parts
- Brackets & Mounting Plates
- Landing Gear Components
- Engine Mounts
- Avionics Housings
- Wing & Flap Components
- Fuel System Parts
- Cabin Interior Components
- Hydraulic Manifolds
Medical
Biocompatible & Surgical Parts
Precision medical components manufactured with biocompatible materials and strict quality control. We support cleanroom machining for sensitive medical applications.
- Common Custom Parts
- Surgical Instrument Handles
- Implant Trial Components
- Diagnostic Device Housings
- Endoscope Components
- Dental Tool Parts
- IV Pump Components
- Prosthetic Adapters
- Medical Monitor Enclosures
Machinery & Automation
Industrial & Robotic Components
Durable components for industrial machinery, robotics, and automation systems. We produce parts with tight tolerances and reliable performance for demanding environments.
- Common Custom Parts
- Machine Frames & Bases
- Robotic Arm Components
- Gearbox Housings
- Linear Motion Guides
- Tool Changer Parts
- Conveyor Rollers & Brackets
- Pneumatic Manifolds
- Sensor Mounting Blocks
Consumer Electronics
Aesthetic & Functional Components
High-quality components for consumer electronics with excellent surface finishes and precise dimensional accuracy. We specialize in both functional and cosmetic parts.
- Common Custom Parts
- Device Housings & Enclosures
- Heat Sinks & Spreaders
- Speaker Grilles
- Button & Switch Components
- Camera Mounts & Rings
- Connector Housings
- Battery Compartments
- Chassis & Internal Brackets
Marine Hardware
Corrosion-Resistant Components
Marine-grade components engineered for harsh saltwater environments. We use corrosion-resistant materials and finishes to ensure longevity in marine applications.
- Common Custom Parts
- Marine Engine Brackets
- Steering System Components
- Deck Hardware & Cleats
- Propeller Shaft Adapters
- Hydraulic Valve Blocks
- Bilge Pump Housings
- Ladder & Railing Components
- Outboard Motor Mounts
FAQ
A wide variety of materials can be processed, including metals (like aluminum, steel, stainless steel, titanium, brass) and plastics (such as ABS, polycarbonate, nylon, PEEK). The best material choice depends on the part’s application, required properties, and budget.
CNC machining is known for its high precision and ability to hold tight tolerances, often down to +/- 0.005mm (0.0002 inches) or better, depending on the specific process, material, and part geometry. Clearly specify critical tolerances on your technical drawings.
We typically require 3D CAD files in standard formats like STEP (.stp/.step), IGES (.igs/.iges), Parasolid (.x_t), or SolidWorks (.sldprt) for accurate quoting. Accompanying 2D PDF drawings are also very helpful for indicating tolerances, finishes, and other critical details.
Lead times vary depending on factors like part complexity, quantity, material availability, and current shop capacity, but often range from 1 to 4 weeks. Requesting a quote with your complete design files will provide the most accurate delivery estimate.
Yes, various surface finishing options are available to enhance appearance, durability, or corrosion resistance, such as anodizing, bead blasting, powder coating, painting, polishing, and plating. Please specify your required finish when submitting your request for a quote.
To provide the best quote, please supply your 3D CAD model, a 2D technical drawing (if available), the desired material, required quantity, specified tolerances, and any surface finish requirements. Clear communication ensures your parts meet expectations.
CNC Milling uses rotating multi-point cutting tools to remove material from a stationary workpiece, ideal for creating complex shapes, slots, holes, and flat surfaces. CNC Turning involves rotating the workpiece against a stationary single-point cutting tool, primarily used for producing cylindrical, conical, or round parts.
Ready to Start Your Project?
Upload your CAD files for a free, instant quote with DFM feedback. No minimum order quantity. Fast lead times from 5 business days.
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