Precision Machine Parts & CNC Machined parts

CNC machined parts are precision metal or plastic components cut from solid stock using computer-controlled cutting tools.
As a leading precision machine parts manufacturer in China, we specialize in high‑quality CNC machined parts
  • ISO 9001:2015 & AS9100D certified precision machining
  • Based in Shenzhen – supplying custom machine parts to aerospace, automotive, medical and industrial sectors worldwide
  • In‑house CMM & advanced metrology for tight tolerance control
  • Express global shipping to 30+ countries (USA, Germany, Japan, UK, France, Canada, Australia)
ISO 9001:2015 AS9100D Certified ITAR Compliant 24h Quote Turnaround

Talk to a CNC Engineer

+86 139 0297 7361 (WhatsApp)
No. 39 Xishi Road, Hewan Community, Guangming, Shenzhen, Guangdong, China
Global Precision Parts Supplier – Shipping to USA, Europe, Asia, Middle East, Australia
20+
Years Precision Manufacturing
8,500+
Projects Completed Worldwide
30+
Countries Served
±0.005mm
Tolerance Capability

CNC Machined Parts at a Glance

Typical Tolerance±0.005 mm (±0.0002") on complex features
Standard Lead Time5–7 days for prototype CNC machined parts; 2–4 weeks for production runs
MaterialsAluminum, stainless & alloy steel, titanium, brass, bronze, PEEK, Delrin, PTFE and more
Minimum Order Quantity1 piece — prototype and production orders both accepted
CertificationsISO 9001:2015, AS9100D, ITAR compliant on request
ShippingDHL, FedEx & air freight to 30+ countries — USA, Europe, Asia, Middle East

Precision CNC parts Capabilities | Chinese Machine Parts Supplier

Full global logistics to USA, Europe, Asia, and beyond – every order backed by quality certifications.

Precision CNC Machining

CNC machined parts and precision turning components with 3/4/5‑axis accuracy. Complex geometries shipped worldwide from our China facility.

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CNC Milling & Turning

High‑speed milling for metals and plastics. Surface finishes down to Ra 0.4 µm. Custom precision machine parts exported to North America, Europe, Asia with fast lead times.

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Rapid CNC Prototyping

Custom precision machined parts in as fast as 5-7 days. Prototype delivery to any global address with full inspection reports.

Start Your Prototype

High-Volume Parts Manufacturing

From one‑off to high‑volume production runs. Consistent precision machine parts quality across 10,000+ units, with full QA reports for every international order.

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Precision CNC Machined Parts | Industrial Components Catalog

Below are some of our most requested CNC machined components with full material certifications.

Precision CNC machined main shaft for industrial gearboxes

Precision Main Shaft

Material: 4140 / 4340 Alloy Steel
Process: CNC turning, precision grinding
Specs: up to 1.5m length, ±0.005mm tolerance

High-strength main shaft for industrial gearboxes and heavy machinery. Heat treated and certified.

CNC machined gear shaft with integrated helical gear

Integrated Gear Shaft

Material: 8620 / 20MnCr5 Case Hardened
Process: Hobbing, shaving, heat treat
Specs: Helical or spur gear integrated

One-piece gear shaft for automotive and industrial transmissions. AGMA Class 10 quality.

Involute splined shaft for high torque applications

Involute Splined Shaft

Material: 4140 / 1045 Steel
Process: CNC hobbing / broaching
Specs: DIN 5480 / ANSI B92.1

Precision splined shaft for high‑torque transmission in off-highway and industrial equipment.

Custom drive shaft for pumps and conveyors

Custom Drive Shaft

Material: Steel / Stainless Steel
Process: CNC turned, keyway cut
Specs: custom lengths, keyed ends

For conveyors, pumps, motors, and agricultural equipment. Balanced and certified.

Precision spur gear for power transmission

Precision Spur Gear

Material: 1045 / 4140 Steel
Process: Hobbing, shaping, grinding
Specs: AGMA Class 10-12

High-quality spur gear for general power transmission, pumps, and industrial machinery.

Helical gear for quiet high-speed gearboxes

Helical Gear

Material: 8620 / 4140 Alloy
Process: Hobbing, grinding, heat treat
Specs: Low noise, high efficiency

High‑speed gearbox applications with reduced noise and increased load capacity.

Bevel gear for right-angle power transmission

Bevel Gear Set

Material: 8620 / 4140 Steel
Process: Gleason cutting, grinding
Specs: Straight / Spiral bevel

Right-angle drives for automotive differentials, industrial gearboxes, and heavy equipment.

CNC machined gear blank ready for tooth cutting

Gear Blank

Material: Steel / Bronze / Cast Iron
Process: CNC turned, bored
Specs: ready for tooth cutting

Rough machined gear blank with all stock removed. Ready for final gear cutting operations.

Rigid shaft coupling for motor-pump connections

Rigid Shaft Coupling

Material: 1045 / 4140 Steel
Process: CNC turn/mill, keyway
Specs: Keyed / splined bore

Rigid coupling for motor-pump connections and direct drive applications.

Flexible beam coupling for misalignment compensation

Flexible Beam Coupling

Material: Aluminum / Stainless Steel
Process: 5‑axis mill
Specs: Beam / jaw type

Compensates for angular and parallel misalignment in servo and stepper motor applications.

Keyed coupling for heavy-duty industrial use

Keyed Coupling

Material: 1045 Steel
Process: CNC turn, broach keyway
Specs: Standard keyway per ANSI

Heavy-duty industrial coupling for high torque transmission in mining and steel mill applications.

Universal joint yoke for driveshaft assemblies

Universal Joint Yoke

Material: 4140 Steel
Process: CNC mill, broach
Specs: Off-highway grade

For driveshafts in heavy equipment, agricultural machinery, and industrial vehicles.

Precision bearing housing for industrial applications

Precision Bearing Housing

Material: Cast iron / Steel
Process: CNC boring, facing
Specs: Split / solid design

For pillow block or flange mount bearing applications in industrial machinery.

Pillow block housing for shaft support

Pillow Block Housing

Material: Ductile iron
Process: CNC mill, bore
Specs: 2-bolt / 4-bolt mounting

Standard bearing support for conveyor systems, fans, and material handling equipment.

Flanged bearing housing for compact mounting

Flanged Bearing Housing

Material: Aluminum / Steel
Process: CNC mill, precision bore
Specs: Square / round flange

Compact bearing mounting solution for space-constrained applications.

Bronze bushing for wear-resistant applications

Bronze Bushing

Material: C932 / C954 Bronze
Process: CNC turned, reamed
Specs: Flanged / straight design

Wear-resistant, low-friction bushing for hydraulic cylinders, pivot points, and bearings.

CNC machined pump housing for centrifugal pumps

Pump Housing

Material: Cast iron / Stainless Steel
Process: CNC boring, milling
Specs: Volute type

Centrifugal and gear pump casings machined to tight tolerances for hydraulic applications.

Precision gearbox housing for industrial gear drives

Gearbox Housing

Material: Aluminum / Cast Iron
Process: 5‑axis machining, boring
Specs: Multi-bearing alignment

Precision housing for gear drives, speed reducers, and transmission assemblies.

Aluminum motor housing for electric motors

Motor Housing

Material: Aluminum 6061
Process: CNC mill, anodized finish
Specs: Finned or smooth design

Electric motor enclosure with integrated cooling fins. Custom bore sizes available.

Compressor housing for scroll and reciprocating compressors

Compressor Housing

Material: Ductile iron
Process: CNC boring, porting
Specs: Ported / valved

Scroll and reciprocating compressor casings for HVAC and refrigeration systems.

Hydraulic valve body for directional control valves

Hydraulic Valve Body

Material: Cast iron / Stainless Steel
Process: CNC mill, gun drilling
Specs: Multi-port, high pressure

Hydraulic directional control valve body with precision-machined spool bores.

Hydraulic manifold for integrated circuit hydraulics

Hydraulic Manifold

Material: 6061 Aluminum / 4140 Steel
Process: 5‑axis machining, tapping
Specs: 4-20 ports, custom circuits

Integrated circuit manifold for hydraulic systems. SAE, NPT, or ORFS ports available.

Precision hydraulic ports and fittings

Hydraulic Fittings

Material: Stainless Steel / Carbon Steel
Process: Swiss CNC machining
Specs: JIC / NPT / ORFS / BSPP

Precision hydraulic fittings for high-pressure applications up to 10,000 PSI.

Hydraulic cylinder end cap for cylinders

Cylinder End Cap

Material: 1026 / 4140 Steel
Process: CNC turn, mill, thread
Specs: Threaded / flanged design

Hydraulic and pneumatic cylinder heads with custom porting and mounting options.

Industries We Serve Worldwide | Precision Machine Parts for Every Sector

Trusted by leading companies in aerospace, medical, automotive, energy, and industrial machinery for high‑quality precision machine parts and CNC machined components. From our China factory to your facility with fast global shipping.

Aerospace & Defense

Turbine blades, structural brackets, engine mounts, flight control components – meeting NAS, ASTM, and AS9100 standards.

Automotive & EV

Engine blocks, transmission shafts, suspension components, EV motor housings. Supplying global automotive OEMs.

Medical & Dental

Surgical instruments, implants, diagnostic equipment enclosures – cleanroom compatible with ISO 13485 standards.

Robotics & Automation

Robot arms, joints, end effectors, precision housings – lightweight components for automation leaders worldwide.

Electronics & Semiconductors

Enclosures, heat sinks, RF shielding, wafer handling components – precision CNC aluminum and copper parts.

Heavy Industrial

Valves, gears, hydraulic manifolds, pump housings – heavy-duty precision machined components for mining, oil & gas.

Precision Machining Capabilities | Global Quality Standards for Machine Parts

Tolerance & Equipment

We achieve ±0.005 mm (±0.0002") tolerances on complex precision machine parts. Our facility operates 3‑, 4‑ and 5‑axis CNC mills, Swiss lathes, EDM, and precision grinding – serving global manufacturing needs.

Materials Expertise

  • Aluminum 6061, 7075, 2024
  • Stainless Steel 303, 304, 316L, 17-4
  • Brass, Copper, C101, C110
  • Titanium Grade 2, Grade 5 (6Al-4V), Grade 23
  • PEEK, Delrin, PTFE, Nylon, Acetal
  • Inconel, Monel, Hastelloy (upon request)

Finishing & Quality Control

  • Anodizing (Type II, Type III hard coat)
  • Passivation & Electropolishing
  • Powder Coating & Plating (Zn, Ni, Cr)
  • CMM Inspection with full documentation
  • Material Certifications (EN 10204 3.1)
  • Surface Roughness Ra 0.2 µm achievable

Certifications

ISO 9001:2015 and AS9100D certified. ITAR compliant upon request. Accepted by global aerospace, defense, and medical clients.

Trusted by Engineering Teams Worldwide

“Precision CNC has been our go‑to for tight‑tolerance aerospace parts from China. Their global logistics are seamless – we receive in California within a week. Consistent quality every batch.”

— Senior Buyer, Aerospace Corp (USA)

“Fast turnaround on custom CNC machined parts helped us hit our prototype deadline in Germany. Excellent communication across time zones and perfect first-article inspection.”

— R&D Manager, MedTech (Germany)

“They handle our high‑volume automotive runs with zero defects. True precision machined components delivered to our plant in Mexico on time, every time.”

— Supply Chain Director, AutoParts (North America)

AeroDynamic Aviation (USA) MediCorp Precision (Germany) AutoTech Industries (Japan) Robotics Innovation (UK) ElectroSys Semiconductor (South Korea) Industrial Solutions (Canada)
· Precision CNC Machining & Manufacturing
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CNC Machined Parts FAQ

Common questions from engineers and buyers sourcing CNC machined parts from our China facility.

What are CNC machined parts?

CNC machined parts are precision components manufactured by removing material from a solid block (metal or plastic) using computer-controlled cutting tools such as mills and lathes. The process delivers tight tolerances, repeatable accuracy and complex geometries that are difficult to achieve with casting or manual machining.

What tolerances can you hold on CNC machined parts?

MetalWorks Plus holds tolerances as tight as ±0.005mm (±0.0002") on complex CNC machined parts, using 3-, 4- and 5-axis CNC mills, Swiss lathes, EDM and precision grinding, with every production run inspected on our in-house CMM.

What materials can you machine?

We machine aluminum (6061, 7075, 2024), stainless and alloy steels, titanium, brass, bronze, and engineering plastics such as PEEK, Delrin and PTFE. Exotic alloys like Inconel, Monel and Hastelloy are available on request.

How long does it take to get custom machine parts?

Prototype CNC machined parts typically ship in 5–7 business days. Production runs generally take 2–4 weeks depending on quantity, material and finishing requirements — we confirm exact lead times with every quote.

Is there a minimum order quantity for CNC machined parts?

No. We accept orders from a single prototype part up to high-volume production runs of 10,000+ units, with consistent quality and full QA documentation at any quantity.

Do you ship CNC machined parts internationally?

Yes. We ship custom machine parts worldwide via DHL, FedEx and air freight to more than 30 countries, including the USA, Europe, Asia and the Middle East, with full customs documentation handled for every order.

Ready to Order Precision Machine Parts from Our China Factory?

Our engineers provide free DFM feedback within 24 hours. Upload your CAD files for a fast, competitive quote on custom CNC machined components – we ship worldwide via DHL, FedEx, or air freight to USA, Europe, Asia, and Middle East.

📁 STEP, IGES, SolidWorks, STL, or PDF — we support all CAD formats. Free design for manufacturability review included.