CNC Precision Machining Service Per Drawing
We are a China-based CNC machining workshop providing CNC precision machining services built entirely around your drawings, samples and 3D models. Send us a STEP, IGES, X_T, SAT, DWG, DXF or PDF file, and our CNC machining China engineering team reviews the geometry, plans the tool paths, selects the specified material and machines finished, ready-to-assemble custom CNC parts — dimension by dimension, exactly as the drawing defines.
Buyers searching for CNC machining, CNC precision machining or CNC machining China choose us because our China factory CNC machining parts program combines 3-axis, 4-axis and 5-axis CNC milling, CNC turning, Swiss-type turning, grinding and coordinated surface treatment under one roof. From a single CNC machined prototype to repeat high-volume production, CNC precision machining from China arrives with tight dimensional tolerances, fine surface quality and consistent batch-to-batch repeatability.
Per Drawing & Per Sample
We machine strictly to customer drawings, or measure and reproduce parts from a supplied physical sample when no drawing exists.
One-Off to Mass Production
Single prototypes, pilot batches and recurring high-volume CNC production runs are all everyday work for our floor.
Metals & Engineering Plastics
Aluminum, steel, stainless, brass, copper, titanium and a wide range of polymers cut from solid bar, plate, block or forging.
China Factory Direct
Direct CNC machining China pricing from the workshop that actually cuts your parts, with clear export communication.
In-House CNC Machining Capabilities
Complete CNC precision machining capacity for custom parts of almost any geometry, material and batch size — engineered and cut in our own China factory.
CNC Milling
3-axis, 4-axis and 5-axis CNC milling of prismatic and complex parts: pockets, slots, contours, 3D surfaces, fixturing features and multi-sided components in both metals and engineering plastics.
CNC Turning
CNC lathe work for shafts, bushings, sleeves, pins, fittings, spacers and rotational parts, with live-tool milling, cross holes, internal/external threads and knurling finished in one setup.
5-Axis CNC Precision Machining
Simultaneous 5-axis CNC machining for impellers, turbine wheels, robot joint bodies and sculptured surfaces that demand short rigid tools, fewer setups and high positional accuracy.
Swiss-Type Precision Turning
Sliding-headstock Swiss turning for long, slender, small-diameter CNC machined parts with tight diameter control — connectors, socket pins, valve cores, needles and micro components.
Grinding & Fine Finishing
Surface grinding, cylindrical grinding, honing and precision reaming for accurate bores, flat sealing faces and fine roughness where milling or turning alone cannot reach the requirement.
Secondary Operations
Tapping, thread milling, deburring, edge breaking, press fitting, sub-assembly, laser marking and every common surface treatment coordinated to your finished-part specification.
Custom CNC Machined Parts We Produce
A cross-section of China factory CNC machining parts made per customer drawing — brass auto-lathing, plastic and foam machining, robot joint bodies, MIM finish machining, liquid cooling plates, impellers, titanium parts and hydraulic blocks.
CNC Machining Materials, Grades and Typical Uses
Our CNC precision machining service covers the full range of metals and engineering plastics requested on OEM drawings. Stock is cut from solid bar, plate, block, tube or forging, and every grade follows the material specification marked on your drawing.
Aluminum Alloys
6061 / 6063 / 7075 / 2024 / 5052 / ADC12Lightweight and fast to machine, aluminum CNC parts are widely used for frames, housings, heat sinks, brackets, robot structures, automotive and electronics components, with natural, anodized or chromate finishes.
Stainless Steel
303 / 304 / 316 / 316L / 416 / 17-4PH / 2205Corrosion-resistant stainless CNC machined parts for shafts, fittings, flanges, bushings, medical and food equipment, marine hardware, pump components and structural parts needing long service life.
Carbon & Alloy Steel
1020 / 1045 / 4140 / 4340 / Q235 / S45CStrong, tough and hardenable steel CNC parts such as gears, sprockets, shafts, mounting blocks, fixtures and welded assemblies, with blackening, zinc plating or heat treatment applied as drawn.
Brass, Copper & Bronze
C36000 / H59 / H62 / C11000 / beryllium copperFree-cutting brass and copper ideal for high-speed auto lathing: bushings, connectors, valve bodies, nozzles, electrical terminals, conductive components and decorative turned parts.
Titanium Alloys
Grade 2 / Grade 5 Ti-6Al-4VHigh-strength, low-weight and biocompatible titanium CNC precision machining for aerospace structures, motorsport, medical instruments and any part exposed to aggressive corrosion environments.
Engineering Plastics
POM (Delrin) / PA66 & MC nylon / UHMW-PETough, wear-resistant and self-lubricating plastic machined parts: gears, rollers, guide blocks, wear strips, insulators and machinery components requiring damping or noise reduction.
High-Performance Polymers
PEEK / PPS / PEI (Ultem) / PTFE / PVDFHigh-temperature and chemical-resistant polymer CNC parts for semiconductor equipment, electrical insulation, analytical instruments and aggressive chemical or clean-room environments.
Clear & General Plastics
PC / PMMA acrylic / ABS / PVC / foamTransparent covers and lenses, panels, enclosure prototypes, lightweight structural foam and general plastic CNC machined components, with polishing, texturing or painting on request.
Industries Served by Our CNC Machining China Workshop
CNC precision machined components flow from our China factory into equipment builders around the world. The industries below represent the most common applications for our custom CNC machining parts.
Automotive & Electric Vehicles
Engine and transmission components, sensor housings, brackets, connectors, EV battery structures, friction-stir-welded liquid cooling plates and modified performance parts.
Aerospace & Defense
Structural brackets, fittings, impellers and lightweight titanium or aluminum components produced under the tight-tolerance discipline of true CNC precision machining.
Robotics & Automation
Humanoid robot joint bodies, robotic arms, end effectors, grippers, motion modules and precision frames for automated production lines.
Industrial Machinery
Custom machine parts, jigs and fixtures, hydraulic blocks, gears, sprockets, replacement spares and obsolete-part reproduction from samples.
Hydraulics & Pneumatics
Valve bodies, manifold blocks, cylinders, spools, cartridges, fittings and sealing components with accurately bored and cross-drilled galleries.
Electronics & Telecommunications
Shielded housings, heat sinks, waveguide parts, connectors, rack hardware and test-system module brackets machined from aluminum and copper.
Medical & Laboratory
Instruments, fluidic manifolds, equipment components and surgical-tool parts in stainless steel, titanium and medical-grade engineering polymers.
Energy, Marine & More
Renewable-energy hardware, liquid cooling plates, marine fittings, optical mounts, food and packaging machinery parts and instrumentation enclosures.
Machining and Inspection on the Same Floor
Quality is built during the cut and confirmed by measurement. CNC milling and CNC turning services are paired with optical and coordinate inspection so every batch of CNC machined parts is checked against the drawing before packing.
CNC Milling Service
Multi-axis CNC milling centers shape prismatic and three-dimensional parts from solid stock with rigid fixturing and optimized tool paths for stable accuracy.
CNC Turning Service China
CNC lathes and turn-mill centers produce rotational parts with concentricity, threads and surface quality controlled within a single clamping cycle.
2D Profile Projector
An optical profile projector checks small contours, radii, chamfer angles and thread forms, comparing the machined silhouette against the drawing at magnification.
CMM Testing
A coordinate measuring machine verifies critical dimensions, hole positions and geometric tolerances, recording measured results against drawing requirements.
Dimensional Precision and Surface Quality We Achieve
CNC precision machining means the finished part behaves like the drawing. The figures below describe results routinely achieved on our CNC milling and turning equipment; the drawing call-out always governs.
Dimensional Accuracy
General machined features are held around ±0.01 mm, while critical diameters, bores and locating dimensions reach ±0.005 mm or tighter when specified. Precision reamed and bored holes reach IT6–IT7 class with controlled roundness and cylindricity.
Geometric Tolerance Control
Flatness, parallelism, perpendicularity, concentricity, runout, coaxiality and true-position requirements are machined and verified; precision bores and mating faces are routinely controlled within a few micrometres.
Surface Roughness
Standard as-machined finish is Ra 1.6–3.2 µm; fine turning and milling reach Ra 0.8; surface and cylindrical grinding reach Ra 0.2–0.4; lapping and fine polishing reach mirror-like finishes near Ra 0.1, all per the drawing call-out.
Surface Treatments Coordinated
Anodizing and hard anodizing, bead blasting, brushing, mirror polishing, black oxide, passivation, zinc, nickel, chrome and tin plating, powder coating, painting and laser marking are arranged as finished-part services.
From a Single Piece to Large-Batch Production
Our CNC machining service scales with the product lifecycle. The same engineering team that cuts your first prototype also runs recurring monthly volume, so drawings, programs and quality expectations never have to be re-explained.
Prototype & Single Piece
1–10 piecesOne-off CNC machined prototypes and engineering samples for fit checks, design verification, trade-show models and breakdown spares, with fast programming and short lead time.
Small Batch Production
10–500 piecesPilot and low-volume CNC production with soft fixturing and optimized setups, suited to product launches, field trials and iterative design changes.
Medium Batch Production
500–5,000 piecesRepeat batches with standardized setups, first-article inspection and in-process control for stable delivery directly to your assembly line.
High-Volume Production
5,000+ pieces per monthMass-production CNC machining China capacity with multi-machine scheduling, archived programs and batch-to-batch consistency for ongoing OEM programs.
Why Buyers Choose CNC Precision Machining from China with Us
China factory CNC machining parts are competitive only when engineering communication, dimensional control and delivery discipline all hold together — that is exactly what our workshop is organized to deliver.
China Factory Direct Pricing
As a direct China factory CNC machining parts supplier, you communicate with the engineers and machinists who actually cut your parts — no trading layer, faster feasibility feedback and factory-level pricing.
Engineering Review Before Cutting
Every drawing is reviewed for machinability: sharp internal corners, deep pockets, thin walls, thread engagement and tolerance stack-up. We raise questions and propose adjustments before any metal is cut.
Per Drawing or Per Sample
Manufacture strictly follows the drawing; when only a physical sample exists, we measure it, reconstruct the geometry, confirm the rebuilt drawing with you and reproduce matching CNC machined parts.
Inspection Against Every Drawing
First-article checks, in-process measurement and final CMM or projector verification compare machined features against drawing dimensions, with measured records kept available for each batch.
Flexible, Fast Lead Times
Rapid prototype CNC parts in days, scheduled repeat production with rolling stock planning, and expedited machining for urgent line-down or equipment-breakdown situations.
Long-Term Batch Consistency
Controlled tooling, documented setups and archived CNC programs keep the first part and the ten-thousandth part consistent — essential for OEM customers relying on repeat CNC machining orders.
CNC Machined Parts and Process Coverage at a Glance
A quick map of the custom CNC parts our China factory produces and the in-house processes that move each part from raw stock to finished, inspected component.
Custom CNC Machined Parts We Make
- Shafts, pins, spindles, bushings and spacers
- Valve bodies, hydraulic blocks and manifold blocks
- Flanges, fittings, adapters and connectors
- Housings, enclosures, mounting plates and brackets
- Gears, pulleys, sprockets and couplings
- Impellers, turbine wheels and bladed rotors
- Heat sinks and FSW liquid cooling plates
- Robot joint bodies, arms and structural frames
- Jigs, fixtures and tooling components
- Custom fasteners, prototypes and sample-replicated spares
Processes and Equipment In House
- 3-axis, 4-axis and 5-axis CNC milling
- CNC turning and combined turn-mill machining
- Swiss-type sliding-headstock precision turning
- Surface, cylindrical and profile grinding
- Drilling, reaming, boring, tapping and thread milling
- Knurling, broaching, slotting and sawing
- Manual deburring, edge breaking and chamfering
- Laser marking, engraving and part identification
- CMM, 2D projector, micrometer and gauge inspection
- Sub-assembly, export packaging and batch traceability
Frequently Asked Questions About Our CNC Machining Service
Straight answers to the questions engineering and procurement teams ask before placing CNC precision machining work with a China factory.
Do you machine parts strictly per customer drawing?
Yes. Send 2D drawings together with 3D models in STEP, IGES, X_T, SAT, DWG, DXF or PDF format. Our CNC precision machining follows every dimension, tolerance, thread and surface-finish call-out marked on the drawing.
Can you make parts from a sample without a drawing?
Yes. We inspect the supplied sample, measure its features with CMM and profile projector equipment, reconstruct a drawing for your confirmation, and then machine matching CNC parts — a common route for replacement spares.
Which materials can you CNC machine?
Aluminum, stainless steel, carbon and alloy steel, brass, copper, bronze, titanium, plus engineering and high-performance plastics such as POM, PA66, PEEK, PPS, PC and PMMA. Common grades are listed in the materials section above.
What tolerance and surface finish can you reach?
General tolerances around ±0.01 mm and critical features down to ±0.005 mm; as-machined roughness of Ra 1.6–3.2, with grinding and polishing reaching Ra 0.2–0.4 or finer whenever the drawing specifies it.
What order quantities do you accept?
From a single CNC machined prototype to high-volume mass production. One-off pieces, small batches, medium batches and recurring monthly OEM programs are all routine work for our CNC machining China workshop.
Why choose a China factory for CNC machining parts?
China factory CNC machining parts combine skilled capacity, broad material availability and competitive cost. We add drawing review and measured quality control, so CNC precision machining from China arrives ready to assemble.
Reliable CNC Machining, CNC Precision Machining and CNC Machining China Capacity
When you search for CNC machining, CNC precision machining or CNC machining China, you usually need the same three things: a part that matches the drawing, a supplier that answers engineering questions quickly, and pricing that works from the first prototype through mass production. Our China factory CNC machining parts program is built around exactly those requirements, taking on thin walls, deep pockets, 5-axis contoured surfaces, fine threads and mixed-material assemblies that general workshops often decline.
Every custom CNC machined component starts from your drawing or sample, is produced on modern CNC milling and turning equipment, is measured against the drawing with projector and CMM inspection, and is packed for safe export shipment. For OEM brands, equipment builders and design teams looking for CNC precision machining from China — per drawing, per sample, from one piece to tens of thousands — our workshop is ready to machine the next batch of CNC machining parts to your exact specification.