We are a China-based precision machining workshop focused on CNC machined stainless steel in China for OEM equipment builders, product manufacturers and industrial maintenance teams overseas. From a single replacement component to recurring batch production, every stainless steel part is programmed, cut, deburred and measured in-house against the customer drawing.
Stainless steel is the material we work with every day. We turn, mill, drill and tap a wide range of austenitic, martensitic, precipitation-hardening and duplex grades, and we match the designation written on your drawing — whether it uses AISI/SAE, UNS, EN/DIN, JIS or Chinese GB nomenclature — to the correct bar, plate, forging or tubular stock before the first cut is made.
// Process scope: CNC turning · 3/4/5-axis CNC milling · drilling · tapping — one piece to high volume
Prototypes, spares and repeat serial batches run on the same equipment and the same quality standard.
From simple plates and pockets to indexed sides and simultaneous five-axis impeller geometry.
304, 316, 303, 321, 410, 420, 440C, 17-4 PH, 2205 duplex and other common commercial grades.
3D models for geometry plus 2D drawings for tolerances, threads, finishes and critical features.
When buyers search for CNC machined stainless steel in China, the workshop standing behind the part is what matters. Our core process range is kept under one roof so that a typical component — a turned body with milled flats, cross-drilled holes and tapped threads — never has to leave the floor between operations.
CNC lathes produce rotational stainless components such as shafts, pins, bushings, sleeves, spacers, ferrules, fittings and threaded connectors, with consistent diameters, controlled surface finish and internal or external threads cut in the same chucking. Bar-fed lathes support efficient repeat batches, while manual loading handles one-off flanges, eccentric shafts and reverse-engineered spares.
Three-axis milling handles plates, blocks, pockets, slots, profiles and hole patterns. Four-axis indexed milling reaches side faces, radial holes and angular features in a single setup. Simultaneous five-axis milling produces centrifugal impeller blades, curved vanes and complex three-dimensional surfaces that would otherwise require several fixtures and repeated re-clamping.
Precision hole making in stainless covers straight and cross-holes, deep holes, counterbores, countersinks, spotfaces and reamed holes. Sharp tooling, peck cycles and deliberately controlled feeds are used to manage the work-hardening tendency of austenitic grades, so holes stay dimensionally stable and free of work-hardened rims.
Internal threads are cut or form-rolled in coarse, fine and custom pitches, with helical interpolation used for larger thread sizes and for thin-walled stainless parts where tap pressure would distort the wall. Every threaded hole is checked against the matching go/no-go thread gauge before the batch moves to deburring.
Customers sourcing CNC machined stainless steel in China often reference different national standards on their drawings. The table below lists the commercial grade equivalents we work with most often, so a 1.4301 part on a European drawing, a SUS304 part on a Japanese drawing and a 06Cr19Ni10 part on a Chinese drawing can all be matched to the same austenitic stainless stock.
| AISI / UNS (US) | EN / DIN (Europe) | JIS (Japan) | GB (China) | Family & typical machining use |
|---|---|---|---|---|
| 304 / S30400 | 1.4301 · X5CrNi18-10 | SUS304 | 06Cr19Ni10 | Austenitic General-purpose plates, brackets, flanges and housings |
| 304L / S30403 | 1.4306 · X2CrNi19-11 | SUS304L | 022Cr19Ni10 | Austenitic, low carbon Welded assemblies and parts needing post-weld stability |
| 316 / S31600 | 1.4401 · X5CrNiMo17-12-2 | SUS316 | 06Cr17Ni12Mo2 | Austenitic, Mo-bearing Pump, valve, marine and chemical-exposure components |
| 316L / S31603 | 1.4404 · X2CrNiMo17-12-2 | SUS316L | 022Cr17Ni12Mo2 | Austenitic, low carbon Fluid-control bodies, fittings and welded stainless parts |
| 303 / S30300 | 1.4305 · X8CrNiS18-9 | SUS303 | Y12Cr18Ni9 | Free-machining austenitic High-speed turned nuts, studs, pins and threaded fittings |
| 321 / S32100 | 1.4541 · X6CrNiTi18-10 | SUS321 | 06Cr18Ni11Ti | Titanium-stabilized Heat-exposed parts and high-temperature fasteners |
| 310S / S31008 | 1.4845 · X8CrNi25-21 | SUS310S | 06Cr25Ni20 | Heat-resisting austenitic Furnace, burner and sustained high-temperature hardware |
| 410 / S41000 | 1.4006 · X12Cr13 | SUS410 | 12Cr13 | Martensitic Shafts, spindles and wear parts that harden by heat treatment |
| 420 / S42000 | 1.4028 · X30Cr13 | SUS420J2 | 30Cr13 | Martensitic Blades, cutters, hardened pins and precision shafts |
| 440C / S44004 | 1.4125 · X105CrMo17 | SUS440C | 95Cr18 | High-carbon martensitic Bearings, races, knife edges and maximum-hardness inserts |
| 17-4 PH / S17400 | 1.4542 · X5CrNiCuNb16-4 | SUS630 | 05Cr17Ni4Cu4Nb | Precipitation hardening High-strength impellers, valve stems and structural parts |
| 2205 / S32205 | 1.4462 · X2CrNiMoN22-5-3 | SUS329J3L | 022Cr22Ni5Mo3N | Duplex High-strength, corrosion-loaded shafts and fluid components |
Designations in the table are commercial equivalents; exact chemistry limits can differ slightly between standards. For every order, the grade named on the drawing is treated as authoritative, the matching incoming stock is recorded against the job, and any ambiguous or conflicting designation is raised with the customer before machining begins rather than substituted silently.
CNC machined stainless steel in China is sometimes associated only with large production runs, but one-off and low-volume work keeps an equal share of our floor schedule. The same machines, programmers and inspection routine serve every quantity band below.
The sequence below is the actual order in which every job travels. Each step closes out before the next begins, which keeps dimensional problems from being discovered at the final measuring stage.
Geometry, grade, thread callouts, tolerances and finish marks are read together; unclear features, undersized tap-drill holes or unmachineable internal corners are flagged before any material is cut.
The confirmed stainless grade is pulled from stock in the required form — bar, plate, tube or forging — saw-cut to blank size and recorded against the job number for full material traceability.
Turning, 3/4/5-axis milling, drilling and tapping are programmed and executed, with workholding planned to minimize re-clamping and protect critical datums across operations.
Sharp edges are broken, machining burrs removed from cross-holes and threads, and the requested finish — as-machined, brushed, bead-blasted, polished or passivated — is applied consistently across the batch.
Critical dimensions are checked with hand instruments, a 2D profile projector for contours and a 3D coordinate measuring machine for spatial features; threads are verified with gauges.
Machined stainless surfaces are protected against scratching and moisture, parts are packed by job number, and the order is staged for its domestic handover or export shipment.
A small selection of part families produced as CNC machined stainless steel in China for overseas OEM customers. Every part below is made to customer drawing rather than held as shelf stock.
Production and measurement sit side by side: machining stations make the features, and the 2D/3D measuring stations verify them before parts leave the workshop.
The shared production floor where turning, milling, drilling, tapping and inspection stages are arranged in job sequence.
Vertical machining centers handle pocketing, profiling, hole patterns, counterbores and tapped threads on stainless blanks.
CNC lathes turn rotational stainless geometry — outer diameters, bores, grooves, faces and cut threads — to drawing.
Simultaneous and indexed five-axis work reaches compound curves, impeller blades and multi-sided features in fewer setups.
An optical profile projector compares blade profiles, radii, angles and edge contours against magnified drawing outlines.
A coordinate measuring machine probes spatial features, position tolerances and bore patterns in three dimensions.
CNC machined stainless steel parts leave our floor for a wide range of equipment where corrosion resistance, clean surfaces and dimensional repeatability are non-negotiable.
Valve stems, seats, pump shafts, sleeves, fittings, flanges and impellers in 304, 316, 17-4 PH and duplex grades.
Conveyor components, mounting brackets, shafts and housings that benefit from stainless surfaces and clean finishing.
Molybdenum-bearing and duplex parts built to withstand wet, salty or chemically exposed operating environments.
Eccentric shafts, bushings, sleeves, couplings, spacers and hardened martensitic pins for rotating machinery.
Custom brackets, sensor mounts, exhaust-adjacent hardware and functional prototypes produced in serial batches.
Small, tight-tolerance stainless bodies, holders and fittings where appearance and dimensional stability both matter.
These four points describe how an order for CNC machined stainless steel in China is actually controlled on our floor, from the incoming drawing to the packed carton.
Drawings are checked for manufacturability first. Questions about threads, tight features, datum choice or grade naming are raised early, when a change still costs nothing.
Sharp dedicated tooling, correct coolant delivery and controlled feeds manage work hardening and built-up edge — the two issues that most often ruin stainless finishes.
Critical dimensions are verified with maintained hand gauges, a 2D profile projector and a 3D CMM, and the measured record stays filed with the job for future reference.
Programs, setup notes, tooling choices and first-piece samples are archived, so a re-ordered part reproduces the original instead of being re-interpreted from scratch.
Short answers to the questions buyers most often raise when first sourcing CNC machined stainless steel in China from a workshop of this type.
No. Single prototypes, one-off replacement spares and small batches are accepted alongside serial production. Quantity mainly affects fixturing choices and unit cycle time, not whether the job can be accepted.
A 3D model in STEP or IGES is the fastest way to evaluate geometry, while a 2D PDF, DWG or DXF drawing carries the tolerances, threads, surface requirements and critical features. A drawing without a model can still be quoted.
Yes. When no drawing exists, dimensions can be taken from the sample using hand instruments, the profile projector and the CMM, then turned into a workshop drawing for confirmation before the replacement batch is machined.
Stainless parts can be left as machined, deburred and edge-broken, brushed, bead-blasted, mirror or satin polished, or passivated to remove free iron from the surface. The required finish is taken from the drawing or agreed in writing.
General machine shops often treat stainless steel as an awkward occasional material. Our daily schedule is built around it: the tooling, feeds, coolant strategy and inspection routine are all tuned to the way austenitic, martensitic, PH and duplex grades actually cut. That accumulated practice is the main reason overseas OEM buyers choose CNC machined stainless steel in China from a focused workshop rather than splitting the work across general-purpose vendors.
A first trial order can begin with a single part, but the process is designed so that successful trials grow into repeat lots without re-learning the job. Archived programs, recorded setups, retained reference samples and filed measurement data let a stainless component be reproduced consistently month after month — which is ultimately what an equipment manufacturer needs more than a one-time low price.
We provide custom machined parts, 5-axis linkage CNC machining, and the design, production, and assembly of machinery and equipment.