Swiss Machining Service from a Trusted China Manufacturer

We turn small, slender parts that other machines cannot hold steady. As a China Swiss machining manufacturer and supplier, our factory runs sliding-head CNC lathes with a guide bushing, so bar stock stays rigid next to the tool. The result is tight tolerance and a clean finish, even on long, thin parts. Upload your CAD file and get a factory-direct quote with free DFM feedback within 24 hours.

Get Your Free Quote Talk to an Engineer
ISO 9001 Certified Factory Quote in 24 Hours NDA Protected Tolerances to ±0.005 mm

The Problem We Solve

Why Small Parts Go Wrong

These are the problems buyers tell us about every week. Here is how we take each one off your desk.

Long Thin Parts Bend

On a standard lathe, a slender part pushes away from the tool and loses size. Our guide bushing holds the bar right at the cut, so the part stays true.

Size Drift Over a Long Run

Tool wear and heat make sizes creep. We monitor key dimensions in-process and keep the part steady from the first piece to the last.

Too Many Setups, Too Much Error

Moving a part between machines adds time and mistakes. We turn, mill, drill, and tap in one setup, so the part is only handled once.

Bad Finish on Tiny Features

Small diameters and fine threads are easy to tear. Rigid cutting gives a clean surface and sharp threads that assemble without galling.

Slow, Vague Quotes

Waiting days for a price kills your timeline. Send your files and get a clear, itemized quote within 24 hours.

Files Not Kept Safe

Your design is your business. We treat every file as confidential, sign NDAs on request, and never share your data.

Swiss machining at YiguProto China manufacturer
Swiss machining at YiguProto: precision, speed, and quality in one place

Our Solution

One China Manufacturer, One Accountable Partner

From your CAD file to a finished, plated micro part — all under one roof.

With YiguProto as your China manufacturer and supplier, you get one team that owns the whole job. No hand-offs, no blame games, no hidden costs.

  • Factory-direct pricing — no middleman markup
  • Free DFM feedback before you place the order
  • Rigid cutting — guide bushing stops the part from bending
  • One setup — turn, mill, drill, and tap without re-handling
  • Full finishing — heat treatment, plating, grinding, marking
Get an Instant Quote Talk to an Engineer

Overview

What Is Swiss Machining?

A turning method built for small, long parts that must stay dead straight.

How It Works in Plain Words

On a standard lathe, the part spins and the tool moves along it. On a Swiss machine, the bar stock slides forward through a small ring called a guide bushing. Only the tiny section being cut sticks out past the bushing.

Because the bar is held right next to the tool, it cannot bend away. The tool moves in and out to cut the shape. Live tooling lets the same machine also mill, drill, and tap sideways, so the part is finished in one setup.

When to Choose Swiss Machining

  • Small diameters — from 0.5 mm up to 32 mm bar stock
  • Long, thin parts — a high length-to-diameter ratio
  • Tight tolerance — ±0.005 mm or better on key features
  • High volume — automatic bar feeders run lights-out
  • Complex shapes — milled flats, cross-holes, and fine threads
  • Hard metals — titanium and superalloys that resist cutting

Capabilities

Swiss Machining Capabilities at a Glance

Real numbers so you can spec your part with confidence.

FeatureCapability
ProcessSwiss-type CNC turning (sliding headstock)
Tolerance±0.005 mm (±0.001 in) or better
Bar diameterØ0.5 – 32 mm
Max part lengthUp to 200 mm per chucking
Axes / toolingUp to 12 axes with live tooling
Surface finishRa 0.8 µm or better
MaterialsSteel, stainless, aluminum, brass, copper, titanium, plastics
Secondary opsHeat treatment, plating, grinding, marking, assembly
Volume1 – 1,000,000+ parts
Lead time3 – 8 business days

What We Deliver

What Our Swiss Machining Service Covers

Everything you need from one China factory — no extra vendors to manage.

01

File Check & DFM

We review your model for thin walls, deep holes, and features that are hard to cut.

02

Bar Stock & Setup

We pick the right bar stock and set the guide bushing for your diameter and material.

03

Turning

Od and ID turning on sliding-head lathes for straight, accurate round parts.

04

Live Tooling

Milling, drilling, and cross-tapping in the same setup, with no re-handling.

05

Threads & Knurling

Fine threads, grooves, and knurls cut cleanly on small diameters.

06

Deburring

We break sharp edges so parts are safe to handle and fit right the first time.

07

Heat Treatment & Plating

Hardening, passivation, anodizing, and plating for wear and corrosion resistance.

08

Inspection & Packing

CMM checks, reports, and clean packing so parts arrive ready for your line.

Not sure which process fits your part? Talk to an engineer for a free review.

Materials

Metals and Plastics We Machine

If it can be turned, we can Swiss machine it. Tell us the working conditions and we will pick the best fit.

STEEL · STAINLESS · ALLOY

Steel & Stainless

Carbon steel, alloy steel, 303, 304, 316L, and 17-4PH. Strong, corrosion-resistant, and great for shafts, pins, and fittings.

ALUMINUM · BRASS · COPPER

Aluminum & Copper Alloys

Light aluminum plus free-cutting brass (C360) and copper for terminals, contacts, and connector bodies.

TI · INCONEL · MONEL

Titanium & Superalloys

Tough, heat-resistant metals for aerospace and medical parts. Rigid cutting keeps these costly alloys from going to scrap.

POM · PEEK · PTFE · ULTEM

Engineering Plastics

POM, nylon, PTFE, PEEK, and Ultem for insulators, bushings, seals, and lightweight moving parts.

Need a special alloy or a certified grade? Ask our engineers — we source it.

Secondary Operations

Finishing That Makes It a Real Part

We can ship bare machined parts, or fully finished ones ready for your line.

Deburring

Sharp edges are broken by hand and by machine so parts are safe and fit cleanly.

Heat Treatment

Hardening and stress relief to reach the strength and wear life your part needs.

Passivation & Plating

Passivation, nickel, zinc, and gold plating for corrosion resistance and contact quality.

Anodizing

A hard, colorful oxide layer on aluminum for wear resistance and a clean look.

Grinding

Precision grinding for the tightest fits, roundness, and mirror-smooth surfaces.

Laser Marking & Assembly

Part numbers, logos, and light assembly so parts arrive ready to use.

Quality Control

Checked at Every Step, Not Just the End

Good parts are made, not sorted. Here is how we keep quality steady.

Material Certificates

Every batch comes with mill certificates, so you can trace the metal back to its source.

In-Process Monitoring

Key dimensions are watched from setup through the run to stop size drift early.

First-Article Inspection

The first part is measured and compared to your drawing before the full run starts.

CMM & Optical Checks

Calibrated CMMs and optical comparators verify the features that matter most.

Dimensional Reports

Critical dimensions are measured and recorded for your records.

Pre-Shipment Review

Photos and reports go to you before the box leaves the factory.

Industries

Industries We Serve

Our China factory turns parts for teams in many fields.

Medical & Dental

Surgical and dental tools, bone screws, and implant components.

Aerospace

Fuel nozzles, hydraulic valve spools, connector bodies, and fasteners.

Automotive

Fuel injector parts, ABS valve spools, and sensor housings.

Electronics

Connector pins, RF bodies, sensor housings, and insulators.

Robotics & Automation

Mini motor shafts, gear parts, micro-valves, and gripper pins.

Fluid Power & Industrial

Hydraulic fittings, valve bodies, and heavy equipment components.

How It Works

From CAD File to Finished Part in 6 Steps

1

Upload Your Design

Send STEP, IGES, or PDF drawings. We keep it private.

2

Get a Quote in 24h

Free DFM review and a clear, itemized price.

3

Set Up the Machine

We pick bar stock and set the guide bushing for your part.

4

Turn, Mill & Tap

Your part is cut in one setup on a sliding-head lathe.

5

Finish & Inspect

We deburr, heat treat or plate as needed, then inspect.

6

Ship to Your Door

Worldwide shipping with tracking and reports.

Design Tips

Design Tips for Better Swiss Parts

Small changes in your CAD cut cost and improve quality. We check all of these for free.

Keep It Round

Swiss machines love round parts. Stay near the bar diameter and avoid big steps up in size.

Add a Lead Chamfer

A small chamfer on the front makes the tool enter cleanly and protects the edge.

Watch Deep Holes

Very deep small holes need special drills and can wander. Tell us early so we can plan it.

Use Standard Threads

Standard metric or UNC threads cut cleanly and cost less than special profiles.

Mind Thin Walls

Very thin walls can flex or chatter. Keep enough wall so the part stays rigid in the cut.

Call Out Key Tolerances

Mark only the dimensions that really matter. This keeps the price low and the quality high.

Send your file and we will return a free DFM report with clear, plain-English advice.

Which Process Fits?

Swiss Machining vs Standard CNC Turning

Both cut round parts. The right pick depends on size, shape, and quantity.

Choose Swiss When…

  • Small diameters — under about 32 mm across
  • Long, thin parts — a high length-to-diameter ratio
  • Tight tolerance — fits that need a few microns
  • High volume — bar feeders run around the clock
  • Many features — milled flats, cross-holes, and threads in one setup

Choose Standard Turning When…

  • Large diameters — parts bigger than bar stock
  • Short, stubby parts — low length-to-diameter ratio
  • One-off or low volume — simple setups, quick to start
  • Bigger features — wide faces and heavy cuts
  • Loose tolerance — general sizes with no tight fits

Not sure which way to go? Ask an engineer — we offer both and will tell you honestly.

Why YiguProto

Why Teams Choose Our China Factory

A partner who answers fast, quotes clearly, and ships on time.

Direct Factory Pricing

You buy from the maker, not a trader. That keeps your cost low and your margins healthy.

Fast, Clear Quotes

Most quotes come back in hours, never more than 24 hours, with free DFM feedback.

One Part or Millions

No strict MOQ. Automatic bar feeders keep the price per part low as your volume grows.

Engineers Who Speak Plain English

You get clear advice, not jargon. We explain trade-offs so you can decide with confidence.

Quality You Can Check

Reports, certificates, and photos before shipping mean no surprises when the box arrives.

One Partner, Many Processes

CNC, 3D printing, molding, and casting under one roof. Scale up without changing suppliers.

Start My Project

Trusted Worldwide

Companies Around the World Rely on Our Swiss Machining

"We had a 0.9 mm diameter pin with a fine thread that kept snapping at other shops. YiguProto turned it in one setup and the thread assembled perfectly. No more scrap."

— Design Engineer, U.S. medical device company

"Their DFM notes caught a deep hole that would have wandered, and they suggested a fix before we cut a single part. The titanium fittings came out on size and on time."

— Founder, European aerospace startup

"Steady sizes across a million-piece run, with certificates for every batch. We have used them for connector pins for over three years and they deliver on spec."

— Engineering Director, Australian electronics maker

12+
Years in Manufacturing
3,000+
Molds Built
50+
Countries Served
ISO 9001
Certified Factory

FAQ

Swiss Machining — Frequently Asked Questions

Swiss machining is a turning process that uses a sliding-head lathe. The bar stock slides through a guide bushing, so only the small section being cut sticks out. That keeps the part rigid and lets us cut very small, very long parts with high accuracy.
On a standard lathe, a long thin part bends away from the tool and loses accuracy. Swiss machines hold the bar right next to the cut, so there is almost no bending. This gives tighter tolerance, a better surface, and less scrap on small parts.
We machine bar stock from 0.5 mm up to 32 mm in diameter. Swiss machining is the best choice for parts with a high length-to-diameter ratio, where a standard lathe would struggle.
We routinely hold ±0.005 mm (±0.001 inch) or better on critical features. Tell us your key dimensions and we will confirm what is possible in your free DFM review.
We machine carbon and alloy steel, stainless steel, aluminum, brass, copper, titanium, superalloys like Inconel, and engineering plastics such as POM, nylon, PTFE, PEEK, and Ultem. If it can be turned, we can Swiss machine it.
A guide bushing is a small ring that holds the bar stock steady right where the tool cuts. It stops the part from bending, which is what makes Swiss machining so accurate on small, slender parts.
Yes. Our machines have live tooling and multiple axes, so we can turn, mill, drill, and cross-tap in one setup. This cuts handling time and removes secondary operations that add cost and error.
We offer deburring, heat treatment, passivation, anodizing, electroplating, grinding, laser marking, and light assembly. Parts can arrive finished and ready for your line.
Upload your 3D CAD files and tell us your material, quantity, and finish needs. Most quotes come back within a few hours on business days, and never more than 24 hours. Every quote includes free DFM feedback.
We prefer STEP (.stp, .step) or IGES (.igs, .iges) files for clean geometry. We also accept SolidWorks, Inventor, Creo/ProE, Parasolid (.x_t), and STL files. 2D PDF or DWG drawings are welcome for tolerances and notes.
There is no strict MOQ. We run one-off prototypes and high-volume production from the same process. Automatic bar feeders keep the price per part low as quantity goes up.
Yes. All customer files and ideas are treated as confidential. We sign NDAs when needed and never share your data.

Need Swiss machining from a trusted China manufacturer?

Send your files and get a factory-direct quote within 24 hours.

Get My Free Quote