Machine manufacturing parts at YiguProto
Custom parts for the Machine sector

Industry Solutions

Machine Manufacturing — Custom Parts from China

Machines earn their keep by running accurately, shift after shift. We build the parts that keep them running — frames, shafts, gears, slideways, covers and the jigs and fixtures that make your line repeat.

Factory-direct CNC machining, 3D printing, injection molding and sheet metal fabrication. From one machine or fixture to batch production. Free DFM feedback with every quote.

Get a Machine Parts Quote All Industries
≤ 24 h
Quote turnaround on business days
1 pc
Minimum order — prototypes welcome
4
Core processes under one roof
Free
DFM review with every quote

Industry Application

Machine Parts We Build Every Day

We supply machine builders, OEM factories and maintenance teams across the machine industry. These are the parts our shops produce most often:

Machine Frames & Bases

Welded and machined frames and bases that stay flat and rigid under load.

Shafts & Spindles

Turned and ground shafts and spindles that run true at speed.

Gears & Gearboxes

Precision gears, splines and gearbox components cut from solid stock.

Jigs, Fixtures & Gauges

Assembly, welding and inspection fixtures — machined in metal or 3D printed.

Slideways, Tables & Beds

Guideways, work tables and beds machined for smooth, accurate travel.

Covers, Panels & Guards

Sheet metal covers and molded guards that protect people and components.

Hydraulic & Pneumatic Blocks

Manifolds and valve blocks drilled and finished to your drawings.

Spare & Replacement Parts

One-off or repeat spares — including obsolete parts we reverse-engineer.

How we help

Why Machine Builders Choose YiguProto

Machine building rewards fits that repeat and suppliers who answer. We engineer, machine, mold and finish in one place — so your parts arrive ready to assemble.

Engineering Support

Our engineers check your drawings before we quote. Free DFM feedback that prevents costly mistakes.

Precision

Tight tolerances on bearing and sliding surfaces, with ground finishes where it counts.

Speed

Fast quotes and short lead times, so a stopped machine starts again sooner.

Reliability

One accountable partner for machining, tooling, molding and finishing — with inspection reports.

Solution 01 · CNC Machining

CNC Machining for Machine Building

CNC machining is the backbone of machine building. We mill, turn, grind and EDM frames, shafts, gears and slideways from solid metal. Heavy or delicate, one-off or batch — every part arrives ready to assemble.

Frames, Beds & Bases

Large-format milling for machine frames, beds and bases that stay flat and true under load.

Shafts, Spindles & Gears

Turned and ground shafts, spindles, gears and splines with fine surface finishes.

Tooling & Precision Inserts

Jig and fixture bodies, gauges, wear plates and hardened inserts — machined to your drawing.

Best forMachine frames, shafts, gears, slideways, tooling and precision inserts
MaterialsCast iron, carbon steel, stainless steel, aluminum, bronze, POM
Processes3-axis, 4-axis and 5-axis milling; CNC turning; wire EDM; grinding; drilling and tapping
Surface finishHeat treatment, grinding, black oxide, anodizing, chrome plating
TolerancesTight tolerances on bearing and sliding surfaces — confirmed in your free DFM review
QuantitiesFrom 1 machine or part to batch production
TurnaroundQuotes within 24 hours; prototypes typically ship in days
Get a CNC Machining Quote Explore CNC Machining Service

Solution 02 · 3D Printing

3D Printed Tooling & Prototypes for Machines

A jig guides the tool. A fixture holds the part. 3D printing puts them on your line in days, not weeks — drill guides, assembly nests, soft jaws and inspection gauges all print straight from your model. For tools that take heavy load or heat, we print the body and fit a machined metal insert.

Jigs, Fixtures & Soft Jaws

Drill guides, welding jigs, bonding nests and clamping jaws — revised and reprinted overnight when the fit changes.

Gauges & Line-Side Aids

Go/no-go gauges, profile checks, part trays and presentation aids that keep the right part in the right place.

Machine Prototypes & Complex Parts

Appearance models, lightweight brackets and parts with internal channels that machining cannot reach.

Best forJigs, fixtures, gauges, prototypes and complex parts
ProcessesFDM, SLA, SLS, MJF, and SLM metal printing
MaterialsPETG and carbon-fiber nylon (FDM), nylon PA12 (SLS/MJF), resin (SLA), stainless steel
DetailsHand-loaded tools print fastest. Heavy load, heat or cutting contact? We fit machined metal inserts.
Quantities1 tool to matched batches — a reprint costs almost nothing
TurnaroundDays — usually the fastest route to a working tool
Get a 3D Printing Quote Explore 3D Printing Service

Solution 03 · Injection Molding

Injection Molding for Machine Parts

Modern machines use molded plastic for guards, knobs, handles and covers. Injection molding gives these parts the lowest cost per piece in volume — with the toughness and finish production needs.

Guards, Covers & Panels

ABS, PC and PP guards and covers that protect people and components without sharp edges.

Knobs, Handles & Trim

Grips, knobs, handwheels and trim — including soft-touch over-molding.

Small Machine Components

Bushings, spacers, cable clips and connectors in engineering plastics.

Best forGuards, covers, knobs and small plastic parts in volume
ProcessesRapid tooling, production molds, over-molding, insert molding
MaterialsABS, PC, PA, POM, PP, PBT, TPU, TPE
ToolingAluminum bridge tooling for pilots; hardened steel molds for production
QuantitiesFrom pilot runs to millions of pieces
TurnaroundPrototype parts in days; production timing follows the tooling build
Get an Injection Molding Quote Explore Injection Molding Service

Solution 04 · Sheet Metal

Sheet Metal Fabrication for Machines

Sheet metal wraps and protects the machine. We laser-cut, bend and weld steel and aluminum into covers, doors, cabinets and brackets — no tooling for prototypes, and fast turnaround from one unit to volume.

Covers, Doors & Panels

Machine covers, access doors and side panels with clean bends and flush seams.

Electrical Cabinets & Mounts

Cabinets, mounting plates and backplates that hold drives and controls in place.

Cable Trays & Brackets

Cable trays, brackets and reinforcement plates that keep wiring tidy and safe.

Best forCovers, doors, cabinets, brackets and cable trays
ProcessesLaser cutting, CNC bending, punching, welding and assembly
MaterialsSteel, stainless steel, aluminum
Surface finishPowder coating, anodizing, electroplating, brushing
QuantitiesSingle units to volume — laser-cut parts need no tooling
TurnaroundQuotes within 24 hours; prototypes typically ship in days
Get a Sheet Metal Quote Explore Sheet Metal Service

Decision Guide

Which Process Should You Choose?

Still not sure? Send us your part and our engineers will recommend the best route — often a smart mix of processes in one machine build.

ProcessBest forTypical materialsQuantityTooling
CNC machiningFrames, shafts, gears, slideways and precision metal partsCast iron, steel, stainless steel, aluminum, bronze, POM1 – 10,000+ pcsNone — programmed from your CAD file
3D printingJigs, fixtures, gauges, prototypes and complex partsNylon, PETG, carbon-fiber nylon, resin, stainless steel1 – small batchesNone — metal inserts fitted where tools take wear
Injection moldingGuards, covers, knobs and small plastic parts in volumeABS, PC, PA, POM, PP, PBT, TPU, TPEPilot runs to millionsMold required — we build and maintain it
Sheet metalCovers, doors, cabinets, brackets and cable traysSteel, stainless steel, aluminum1 – volumeNone for laser-cut prototypes
Ask an Engineer — Free DFM Review Explore All Services

How we work

From Drawing to Working Machine — Five Clear Steps

You always know where your project stands. Here is the path most machine part projects follow with us:

Share your files

Send 2D drawings or 3D models (STEP, STP, IGES, STL). Tell us the quantity and how the part will be used.

Free DFM review & quote

Our engineers review the design and return a quote within 24 hours, with feedback that improves manufacturability.

Prototype & first article

We make a first sample and run dimensional checks. You approve fit, form and function before production starts.

Pilot run

We confirm the process with a small batch. Adjustments to design, material or finish happen here — while change is still cheap.

Production & delivery

We scale up with stable quality and on-time delivery. Inspection reports travel with every batch.

Quality & Trust

Quality You Can Verify

Good machine parts are proven, not promised. Our quality system checks every stage, so your machines assemble cleanly and run for years.

Incoming Material Control

Material certificates for every lot, so what arrives matches what you ordered.

First Article Inspection

A full dimensional check on the first piece before the run begins.

In-Process Checks

Operators verify critical features during the run — not only at the end.

Final Reports & NDA

Dimensional and inspection documentation with every order. Your files stay confidential.

Materials & Finishes

The Right Material for the Machine

Material and heat treatment decide how a part behaves under load, speed and wear. Tell us your conditions, and we will suggest a grade that fits your budget.

Metals

Cast iron, carbon steel, stainless steel, aluminum and bronze — strong, stable and wear-resistant.

View metal materials →

Engineering Plastics

POM, PA and PEEK for bushings, guides and covers; ABS, PC and PP for molded guards.

View all materials →

Finishes That Wear Well

Heat treatment, grinding, black oxide, anodizing, powder coating and chrome plating.

View surface finishes →

FAQ

Machine Manufacturing — Frequently Asked Questions

We build the parts machines are made of and run with: frames and bases, shafts and spindles, gears and gearbox parts, slideways and tables, jigs, fixtures and gauges, covers and guards, plus one-off spare parts. We use CNC machining, 3D printing, injection molding and sheet metal fabrication.
Send your drawings or 3D files. Most quotes come back within a few hours on business days, never more than 24 hours.
There is no strict MOQ. We support one-off machines and fixtures, pilot runs, and full production quantities.
Precision metal parts like frames, shafts and gears fit CNC machining. Jigs, fixtures, gauges and prototypes fit 3D printing. Plastic guards, covers and knobs in volume fit injection molding. Enclosures, doors and brackets fit sheet metal fabrication. Send your file and our engineers recommend the best route for free.
Yes. We machine metal jigs and fixtures for heavy load, heat and cutting contact. We 3D print drill guides, assembly nests, soft jaws and inspection gauges for locating, presenting and checking jobs. For mixed duty we can print the body and fit a machined insert.
Yes. Send us the old part or a 3D scan. We build the model, confirm dimensions with you, and machine or print the replacement — often the only way to keep an older machine running.
Cast iron, carbon steel, stainless steel, aluminum and bronze for structural and wear parts. POM, PA and PEEK for bushings, guides and covers. ABS, PC and PP for molded guards. We match material and heat treatment to load, speed and wear.
Yes. We make a first article for your approval, with dimensional checks. Sample cost depends on the process, and it is credited back on a production order.
We hold tight tolerances on bearing and sliding surfaces, and offer grinding, heat treatment, black oxide and chrome plating. Our DFM review confirms what is achievable before you commit.
We inspect incoming material, run first article and in-process checks, and provide dimensional reports with every order. All customer files are confidential, and we sign NDAs on request.

Start your machine manufacturing project

Free DFM feedback and a factory-direct quote within 24 hours. Send your drawings or 3D files today.

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