Custom-machined metal and plastic components, from a single prototype to repeat high-volume production
As a precision CNC machining service in China, we manufacture draw-to-print parts for OEM buyers, equipment builders, distributors and maintenance teams in Europe, North America, Russia, Pakistan, South Africa and other overseas markets. Each order is produced against the customer's own drawings and specifications, from raw material selection to machining, deburring, inspection and protective packaging.
Turning, 3-axis / 4-axis / 5-axis milling, drilling and tapping are all handled on the same production floor, so process routing stays short, lead times remain predictable and dimensional consistency is maintained whether the order contains one piece or several thousand.
A precision CNC machining service in China built around the processes that custom metal and plastic parts actually need, combined in-house instead of being split across several vendors.
CNC lathes and turning centers produce rotational parts such as shafts, pins, bushings, sleeves, rings, threaded fittings and flanges. External and internal turning, facing, grooving, boring and cut-off are supported, and live-tool stations add cross-drilling and light milling in a single clamping to protect concentricity.
3-axis milling handles standard prismatic parts, pockets, slots and profiles. 4-axis indexing reaches multiple faces without repeated refixturing, while simultaneous 5-axis machining produces continuous-curve surfaces such as impellers and cycloidal disks, reducing setups and the alignment error that accumulates between them.
Hole making is performed on machining centers and dedicated drilling equipment: straight holes, stepped holes, counterbores, countersinks, spot faces and reamed holes, with diameter and position controlled to the drawing. Deep holes and angled holes are planned at the programming stage to keep tool reach and chip evacuation under control.
Internal threads are produced by tapping or thread milling, and external threads by single-point turning. Metric and unified inch forms, coarse and fine pitches, as well as parallel and tapered pipe threads for fluid-power fittings can all be accommodated, with thread gauges used for verification.
The same precision CNC machining service in China works across the full range of metals and engineering plastics that industrial buyers use most often, in bar, plate, block, tube and forged blank forms.
Corrosion-resistant grades for wet, outdoor and hygienic environments.
304, 316 / 316L, 303, 416, 17-4 PH, duplex gradesGeneral structural and hardened steels for loaded and wear-facing parts.
Q235, 1045 / S45C, 4140, 42CrMo, normalized and tempered statesLightweight alloys machined from billet, plate, bar or extruded profile.
6061, 6063, 5052, 2024, 7075Free-machining conductive and bearing alloys for electrical and rotating use.
C11000 copper, C36000 brass, tin bronze, leaded bronzeHigh-strength, heat and corrosion resistant alloys for demanding service.
Grade 2, Ti-6Al-4V, Inconel-class alloys on requestWear-resistant tool steels for fixtures, cutters and forming components.
SKD11 / D2, H13, P20, Cr12MoV, with heat treatment coordinationDimensionally stable polymers for insulators, guides and wear pads.
POM / Delrin, PA66 nylon, PEEK, UHMW-PE, PTFE, PVC, PCSpecialty sheet and laminate materials machined with dust-controlled routing.
Acrylic / PMMA, Bakelite, FR4 / G10 laminate, HDPEOrder quantity never changes the standard of workmanship. Equipment, programs and inspection routines scale with the batch instead.
Single pieces and design-validation samples machined directly from 3D models with minimal setup time, suitable for fit checks, functional tests and replacement spares.
Runs of roughly 10 to 500 pieces for pilot production, aftermarket demand and equipment spares, with first-article confirmation before the remaining quantity is run.
Recurring batches produced with fixed tooling, stored CNC programs, stable cycle times and archived setup sheets, so every release matches the approved first article.
Large quantities are spread across multiple machines with duplicated fixtures, staged material supply and batch-level inspection records to protect both output and delivery time.
Quality is built into the routing rather than added at the end, with measurable targets agreed against each drawing before cutting starts.
Call-outs on the customer drawing always take priority. On controlled features, ±0.01 mm is routine, and ±0.005 mm can be held on selected dimensions where geometry, material and machine capability allow.
As-machined surfaces typically reach Ra 3.2; toolpath optimization and finishing passes bring functional and sealing surfaces down to Ra 0.8 and finer when the drawing requires it.
First-piece inspection, operator self-checks and periodic patrol inspection run during production, with tool wear compensation adjusted before features drift out of tolerance.
Finished parts pass through 2D optical profile measurement and 3D coordinate measurement for spatial features, threads and bore relationships, with deburring and cleaning before packing.
A small selection of parts produced as a precision CNC machining service in China; every item below is made to the buyer's own drawing and material specification.
Production equipment and measuring equipment sit side by side, so a feature can be cut, checked and corrected without leaving the workshop.
The main production floor, with turning and milling equipment grouped by process flow for shorter routing and faster handling between operations.
Vertical machining centers producing prismatic parts, pockets and hole patterns, with drilling and tapping completed in the same setup where possible.
Rotational metal parts cut on CNC lathes, with controlled feeds and speeds selected for each material to protect dimensions, threads and surface finish.
Five-axis centers machine sculptured surfaces such as impeller blades and complex reducer components in fewer setups, preserving positional accuracy.
An optical profile projector checks 2D contours, radii, angles and edge profiles against the drawing, especially on thin blades and small stamped-style features.
A coordinate measuring machine verifies spatial relationships, bore positions and complex 3D geometry, producing recorded measurements for the batch file.
Drawings from different sectors share the same routing discipline; the examples below show where machined parts from this floor typically end up.
Helical gears, cycloidal disks, pinion shafts, reducer housings, output flanges and eccentric components for speed reducers and drive assemblies.
Valve blocks, manifolds, threaded fittings, adapter sleeves, sealing rings and pipe flanges where bore finish and thread accuracy are critical.
Custom machine components, brackets, mounting plates, spindles, guide blocks and wear parts for production lines and automated equipment.
Impellers, shaft sleeves, balance rings, coupling halves and rotating components that demand continuous-curve 5-axis machining.
Machined brackets, connectors, spacers, pivot pins and sub-components supplied as repeat batches for vehicle and trailer builders.
Heavy-duty access covers and frames, structural fittings and corrosion-resistant stainless hardware for outdoor and underground service.
A predictable four-stage path keeps drawing, material, machine and inspection record aligned from the first drawing review to the packed carton.
2D drawings (PDF, DWG) and 3D models (STEP, IGES, X_T) are reviewed for geometry, datums, tolerances, threads, material grade and expected quantity.
Pricing is built from the actual routing — machine, fixturing, tooling and cycle time — and manufacturability notes are added where a feature can be improved.
Material is prepared and marked with its lot, programs are written and proven, and a first article is measured and confirmed before the batch is released.
Final dimensional inspection, deburring, cleaning and anti-corrosion treatment as needed, followed by protective packaging suited to long-distance freight.
Practical answers buyers ask when evaluating a precision CNC machining service in China for a new or repeat custom part.
A dimensioned 2D drawing with tolerances, threads and surface requirements is the baseline, together with a 3D model where available. Material grade, target quantity and any treatment or finishing requirements allow the quotation and routing to be completed in one pass.
Yes. One-off prototypes, replacement spares and very small batches are accepted on the same equipment and under the same inspection routine as volume orders; only the setup strategy and pricing structure differ.
There is no fixed upper cutoff. Recurring batches from several hundred to tens of thousands of pieces can be arranged through duplicated fixturing, multiple-machine scheduling and phased delivery against a blanket order.
The customer drawing always governs. ±0.01 mm on controlled dimensions is routine, ±0.005 mm is feasible on selected features, and surface roughness down to Ra 0.8 can be achieved; tighter call-outs are reviewed against geometry and material before order confirmation.
Parts can be machined either from stock sourced through our established suppliers or from material provided by the customer. Grade, heat number and lot information are recorded so each finished batch remains traceable to its raw material.
CNC programs, fixture drawings, setup sheets, tooling lists and first-article measurement records are archived by part number, so a reorder reproduces the approved geometry instead of being programmed from scratch.
For OEM buyers that need a reliable precision CNC machining service in China, the combination of turning, multi-axis milling, drilling, tapping and in-house measurement under one roof means fewer hand-offs, shorter lead times and parts that match the drawing batch after batch.
We provide custom machined parts, 5-axis linkage CNC machining, and the design, production, and assembly of machinery and equipment.