ISO 9001 Certified  ·  China Precision Machining Manufacturer

Custom CNC
Machining Services& Long Shaft Manufacturing

Precision CNC machined parts from a vertically integrated facility — ±0.005 mm tolerances, 3/4/5-axis milling and turning, long shaft machining up to 16 m. Prototype to production.

Tolerance ±0.005 mm 3 / 4 / 5-Axis CNC Quote in 24H Delivery 5–7 Days Full CMM Reports
NDA available upon request for all projects.
ISO 9001 CertifiedFull inspection & lot traceability
24H DFM FeedbackEngineering review before quoting
Global Shipping 5–7 DaysNA · Europe · Asia-Pacific
100% First-Article CMMFull dimensional report, not just a CoC
Who we are

Built for the Parts Other Shops Decline

Two specialized facilities under one roof — engineered around the precision parts and large shaft work that most contract machining shops are not equipped to handle.

Precimach CNC machining facility — 3/4/5-axis VMCs and turning centers in production Precision CNC Facility
3/4/5-Axis VMCs & Mill-Turn Centers — vertically integrated, no subcontracting
For complex, tight-tolerance parts

When Your Drawing Has More Callouts Than the Quote Comes Back With Answers

Engineers send us prismatic housings, thin-wall brackets, freeform 5-axis parts, and assemblies that competitors quote with generic surface notes and verbal commitments. We respond with DFM analysis, process plans, and inspection methods specific to your features — within 24 hours.

  • DFM review before quoting, not after problems appearOur engineers read your drawing first. Spec gaps and process risks flagged in writing, not discovered mid-production.
  • Single-clamping 5-axis for compound geometriesNo datum shifts between operations. The features that have to relate to each other — actually do.
  • Documented quality with every batchCMM dimensional report, CoC, and material cert with lot traceability ship with the parts. Not "available on request" — included.
3 / 4 / 5-Axis MOQ: 1 piece Aerospace · Medical · Defense
Precimach dedicated long shaft machining workshop — heavy-duty CNC turning for shafts up to 16 metres Dedicated Long Shaft Workshop
Ø1600 mm × 16,000 mm capacity — in-house cylindrical grinding & heavy-duty CNC turning
For shafts & large parts most shops can't fit

When Your Local Suppliers Say "Sorry, We Don't Have the Capacity for That"

A separate facility built specifically for heavy and oversized parts: long drive shafts, rolls, screw cores, slender taper shafts, large flanges, and ground cylindrical surfaces. This is not a side capability — it's a dedicated workshop with the machines, fixtures, and operators built around it.

  • Up to Ø1600 mm × 16,000 mm in single setupAvoid the splice welds and re-alignment errors that come from machining long parts in segments.
  • Vibration control for slender and taper shaftsCustom follower rests, in-house turn-grind sequencing. The kind of parts that chatter on standard lathes — we produce in single-pass.
  • DDP shipping for oversized piecesAir or sea freight handled end-to-end, including crating and customs. You receive the part at your dock.
Up to 16,000 mm length Cylindrical grinding Energy · Marine · Industrial
What we do

CNC Machining Capabilities

From complex milled housings to precision turned shafts — all processes in-house, all under ±0.005 mm.

Ready to source your next part?
Get a Free Quote
or email us directly
projects@precimach.com
NDA available upon request.
Custom CNC Machining
Quote in 24H. Parts in 5–7 Days.
±0.005 mm ISO 9001 CMM Reports DDP Shipping
The experience

What It's Like Working With Us

Six things that quietly happen behind every order — the operational details buyers tell us made the difference.

01

Your drawing reaches an engineer, not a sales pipeline

Every RFQ is opened by a machinist-trained project engineer who can read GD&T, recognise critical features, and tell you within hours whether your part is straightforward, manageable, or needs design discussion before quoting.

"They came back with a question about my datum scheme before sending a price. That was the first sign we were dealing with a different kind of supplier."
02

Quotes you can hand to your buyer without explanation

Itemised pricing — material, machining time, finishing, inspection, packaging, freight. No hidden setup charges that appear on the invoice. No "expedite fee" surprises after you've committed.

"The quoted price was the invoiced price. That doesn't sound impressive until you've worked with shops where it isn't true."
03

Production updates with photos, not silence

You will receive proactive updates at machining start, mid-production, and post-inspection — including photos on request. You are never wondering whether your order is being worked on or sitting on a shelf.

"I stopped having to chase status. They send updates before I ask. That changes how I plan my own schedule."
04

We ask if something looks off — instead of guessing

Tolerance unrealistic for the chosen process? Material spec inconsistent with the application? Dimension that conflicts with another callout? We email you and wait for clarification. Production does not start on assumption.

"They caught a dimension conflict on my drawing that I hadn't noticed in three revisions. That alone saved a rework cycle."
05

Inspection data you can act on, not just file away

CMM reports list actual measured values against drawing nominal — not pass/fail check marks. You can spot trends, compare batches, and verify whether a feature is drifting before it becomes a problem.

"Other suppliers send a CoC that says 'inspected'. Theirs lets me verify the data myself. Big difference."
06

The same team from prototype through volume

No handoff between a "prototype team" and a "production team". The engineer who quoted your first part owns the relationship as you scale — the process data, inspection plan, and fixturing all carry forward.

"Going from 5 prototypes to 500 units took no requalification calls. Same engineer, same process, same results."
Our commitment

We're not the cheapest CNC supplier you'll find, and we're not trying to be. We're the one you call when the part actually has to work, when the schedule cannot slip, and when the answer to "did it ship on time?" needs to be yes, every time.

Precimach Engineering Team · Suzhou, China
Where we deliver

Industries We Serve

Precision parts for applications where tolerances, traceability, and on-time delivery are non-negotiable.

Proven in the field

Engineering Case Studies

Real projects, real challenges, real results — documented so you can evaluate our capability against your own requirements.

Free · No obligation · Reply within 24 hours

Send Your Drawing.
Get a Reviewed Quote in 24H —
No Commitment Required

Upload your drawing or STEP file and our engineering team will review it for DFM issues, material suitability, and process fit — not run it through an algorithm — and send you a detailed, accurate quote within 24 hours.

You uploadDrawing · STEP · PDF
We reviewDFM · material · tolerance
Quote in 24HDetailed · no obligation
Parts deliveredDDP · air or sea
NDA signed before we review your drawing. All files held in strict confidence.
Accepted file formats
STEP · STP · IGS PDF DWG · DXF JPG · PNG XLS · XLSX ZIP · RAR

Multiple files? Compress into a single ZIP before uploading — or send your drawings directly to projects@precimach.com

🔒 Your files are used only to prepare your quote — never shared, never stored beyond project scope. NDA available on request before we review any drawing.
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