ISO 9001:2015 Certified Precision Manufacturer

Custom Precision
Machine Parts
Manufacturing

CNC Machining, Turning & Milling | Prototype to Mass Production

Custom CNC machined parts for industrial and electronics assemblies. Send your drawing, material, quantity and critical fits for a machining and inspection review.

±0.01mm
CNC Target
50+
Materials
3–15d
Lead-Time Guide
40+
Countries
ISO 9001:2015
Global Delivery
In-House CMM Lab
Quality records on request
Product Showcase

Machine Parts
Portfolio

Explore 22 component examples and their specifications. Ten images are AI-generated representative illustrations; supplied geometry and acceptance criteria follow the approved drawing.

CNC Machined Aluminum Housing
01 — CNC Milling
CNC Machined Aluminum Housing
View Specs
Precision Stainless Steel Shaft
02 — CNC Turning
Precision Stainless Steel Shaft
View Specs
Brass Connector Pin
03 — Swiss Turning
Brass Connector Pin
View Specs
CNC Milled Bracket
04 — 4-Axis Milling
CNC Milled Structural Bracket
View Specs
Custom Gear Component
05 — 5-Axis CNC
Custom Gear Component
View Specs
Threaded Fastener Part
06 — CNC Turning
Threaded Fastener Component
View Specs
Aerospace Structural Component
07 — 5-Axis CNC
Aerospace Structural Component
View Specs
Medical Device Part
08 — CNC Turning
Medical Device Precision Part
View Specs
Multi-axis Complex Machined Part
09 — 5-Axis CNC
Multi-Axis Complex Machined Part
View Specs
Stainless Steel Enclosure
10 — CNC Milling
Stainless Steel Precision Enclosure
View Specs
Titanium Aerospace Fitting
11 — 5-Axis CNC
Titanium Aerospace Fitting
View Specs
Copper Electrical Component
12 — CNC Turning
Copper Electrical Component
View Specs
STEP · IGES · DWG
Precision tooling equipment in the SSP manufacturing facility
Custom build

Made to your drawing

Your specification, reviewed before manufacture.

MaterialsGrade, condition and finishSpecified gradeQuantityScope and schedule reviewedOne-off + repeatFits & tolerances

Drawing · material · quantity

Beyond the catalog

Your part,made to your drawing

Need a custom shaft, bushing, bracket, housing or precision machined component? Share the drawing revision, mating interfaces and operating requirements. Send SSP a STEP model or a dimensioned drawing, together with your material, quantity and inspection requirements. Our team can review the geometry, manufacturing route and quotation scope for your project.

  • Drawing or sample review before the manufacturing route is agreed.
  • Material, treatment and finish matched to the approved specification.
  • Critical dimensions and inspection records defined with your order.
  • Prototype, trial and repeat-production needs reviewed for your project.
  • NDA available on request.
Send your drawing
Technical Specifications

Machine Parts Manufacturing
Capability Table

Indicative CNC machining specifications; confirm tolerances, size and inspection evidence per drawing. The turning range below covers general CNC turning. Swiss bar diameter, length and tolerances are quoted separately.

Category Specification Value / Range Process Type Use Case
CNC Machining Tolerance Dimensional Accuracy ± 0.01 mm 3-Axis / 4-Axis / 5-Axis CNC Precision mechanical parts, housings, brackets
Turning Tolerance Diameter tolerance ± 0.005 mm General CNC Turning Shafts, pins, bushings, rotary components
Milling Flatness Surface Flatness ≤ 0.02 mm CNC Milling Plates, brackets, housings, structural parts
Surface Finish Ra Level Ra 0.2 – 3.2 μm CNC / Grinding / Polishing High-finish functional and cosmetic parts
Heat Treatment Hardness Steel Hardness Range 28 – 62 HRC Quenching / Tempering Structural and load-bearing wear parts
Material Types Metals & Plastics Al / Steel / Brass / SUS / POM / PEEK Machining / Turning / Milling All custom machine part applications
Coating Options Protective Coatings Anodizing / Zinc / Nickel / Powder / Black Oxide Surface Treatment Corrosion & wear protection layers
Max Part Size (CNC) Machining Envelope 800 × 500 × 400 mm CNC Milling Medium–large mechanical structures
General Turning Range General turning diameter Ø 5 mm – Ø 300 mm CNC Turning Shafts, rings, flanges, rotary parts
CAD File Formats Supported Data STEP, IGES, STL, PDF, DWG Engineering Review All custom machined component quoting
Manufacturing Capabilities

CNC Machined Parts
Capabilities

Select the machining route by geometry, material and quantity. Confirm feature access, workholding and inspection requirements during drawing review.

01
3 / 4 / 5-Axis CNC Machining

Multi-axis machining for compound angles and complex contours. Setup count and tool access are reviewed against the part geometry.

Tolerance ±0.01mm
02
CNC Turning & Swiss Machining

General CNC turning covers shafts, bushings and flanges. Swiss turning is reviewed separately for small pins and slender parts; confirm bar diameter, length, material and critical fits before ordering.

Tolerance ±0.005mm
03
Precision Milling

Face, pocket and contour milling, with flatness and surface-finish acceptance defined on the drawing.

Flatness ≤ 0.02mm
04
Prototype to Mass Production

Prototype, short-run and repeat production quantities are reviewed together with setup costs and delivery requirements.

Low MOQ · High Volume
05
Complex Geometry Machining

Deep pockets, undercuts and thin walls require a geometry-specific review. Toolpath simulation checks access and collision risks before machining.

5-Axis Simultaneous
06
FIT CHECK
Assembly Support

Sub-assembly, press-fit and thread insertion to agreed fits. Define mating dimensions and assembly checks before production.

Full Assembly Available
±0.01mm
CNC Target
±0.005mm
Diameter Target
800×500mm
Max Part Size
5-Axis
Max CNC Axes
3–15d
Lead-Time Guide
End-to-End Process

Machine Parts
Production Workflow

Eight stages from drawing approval to shipment, with inspection and release checkpoints agreed for the order.

8 STEPS REVIEW MATERIAL CNC 2ND OPS FINISH INSPECT PACK PROGRAM
01
Drawing Review & DFM

First, review machine parts drawings for radii, wall thickness, tool access, tolerance feasibility and material compatibility before quotation. Define GD&T requirements on the drawing.

02
Material Selection

Select the grade for load, temperature and corrosion exposure. Specify required material certificates in the order.

03
CNC Programming

CAM programming with toolpath simulation in Mastercam/CATIA. Collision detection and stock verification before cutting. Optimal fixture and datum setup defined.

04
CNC Machining

Multi-axis CNC milling, turning, drilling, and tapping on calibrated production machines. First-article inspection at start of every run to verify setup accuracy.

05
Secondary Operations

Specify heat treatment, EDM, grinding or other secondary operations as needed. Agree the process route and dimensional rechecks before production.

06
Surface Finishing

Apply the specified finish, allowing for coating thickness and masking. Agree roughness measurements and sampling before processing.

07
Inspection & QC

Verify agreed dimensions, hardness, roughness and appearance. Specify a report comparing measured results with drawing tolerances.

08
Packaging & Global Delivery

Anti-rust paper, foam cushioning, and custom packaging per part geometry. Export documentation, certificates, and inspection reports included. DHL/FedEx/sea freight available.

Quality System

Precision Machined Components

For precision machined components, agree datums, sampling and acceptance criteria before production. Request material certificates, first-article results and a final dimensional report as order deliverables.

Inspection Equipment
CMM — Coordinate Measuring Machine
Request measured results for critical features, with the CMM calibration status and measurement uncertainty appropriate to the specified tolerances.
Vision Measurement System
Non-contact checks for 2D profiles and small features, using a measurement method agreed for the drawing tolerance.
Surface Roughness Tester
Ra measurement on all machined and finished surfaces. Verifies Ra 0.2–3.2μm range as specified on drawing.
Hardness Tester
Rockwell HRC verification post heat treatment. Confirms hardness is within specification range before assembly or delivery.
Inspection Protocol
Incoming Material Inspection

Mill certificates verified against specification. Chemical composition and hardness spot-tested before machining begins.

100% Material Traceability
First Article Inspection (FAI)

Agree the first-article sample, measured features and approval stage. Request the FAI report before releasing the production run.

FAI on Every Setup
In-Process Sampling

Agree in-process sampling for critical features. Where required, request a capability study with the sample size, method and acceptance target.

SPC study on request
Final Dimensional Report

Specify a final report listing measured values, drawing tolerances and conformance status for the agreed critical dimensions.

Agree report scope
Material Expertise

Machine Parts Materials
We Machine

Choose a grade for the operating environment and finish. Confirm availability and certificate requirements with the quotation.

Metals & Alloys
Structural metals for precision machined components
Aluminum 6061 / 7075
Lightweight · High strength-to-weight · Anodizable · CNC & turning
Stainless Steel 303 / 304 / 316
Corrosion resistant · Food/medical grade available · High finish
Carbon Steel / Alloy Steel
High strength · Heat-treatable · 1045 / 4140 / 4340 · Shafts, gears
Brass C2600 / Copper C1100
Excellent machinability · Electrical conductivity · Connector components
Titanium Ti-6Al-4V
High strength · Biocompatible · Aerospace & medical grade · Low weight
Tool Steel SKD11 / H13 / DC53
HRC 58–62 · Die and mold components · Wear-resistant applications
Engineering Plastics
High-performance polymers for non-metallic machined parts
POM (Delrin / Acetal)
Low friction · Dimensional stability · Gears, bushings, guides
Nylon PA6 / PA66
Tough · Self-lubricating · Impact resistant · Structural components
PEEK
High temp (250°C) · Chemical resistant · Aerospace / medical
PTFE (Teflon)
Lowest friction coefficient · Chemical inert · Seals, bearings, gaskets
ABS / PC
Good impact resistance · Easy to machine · Enclosures, housings
UHMW-PE / Polycarbonate
High abrasion resistance · Transparent PC for optical or inspection windows
Post-Processing

Surface Finishes
& Coatings

Specify finish type, thickness, masking and cosmetic requirements. Agree the test method before using a performance claim as an acceptance criterion.

Anodizing

Type II and Type III anodizing for aluminum. Specify coating thickness, colour, sealing and masked fits; confirm the process with the quotation.

Thickness to specification
Sandblasting

Uniform matte texture by abrasive blasting. Removes tool marks, improves adhesion for coatings, and provides a consistent cosmetic appearance across all surfaces.

Uniform Ra 1.6–3.2μm
POWDER
Powder Coating

Electrostatic powder application with oven curing. Durable, chip-resistant finish in any RAL colour. Excellent corrosion and UV resistance for outdoor/industrial use.

Colour to specification
Ni / Zn / Cr
Electroplating

Nickel, zinc, chrome, and gold plating for corrosion protection, conductivity, or cosmetics. Precise plating thickness controlled from 2 to 50μm.

Thickness agreed per order
Ra CHECK
Polishing

Mechanical or electrolytic polishing, with the required Ra, measurement location and cosmetic standard confirmed for the part.

Ra confirmed per drawing
BLACK OXIDE
Black Oxide

Black conversion finish for suitable steel grades. Confirm pretreatment, corrosion protection and effects on critical fits with the selected process.

Critical fits reviewed
DLC WEAR TEST
DLC Coating

Diamond-like carbon for selected wear and sliding-contact applications. Agree coating type, thickness, substrate compatibility and any friction or wear testing.

Wear testing by agreement
Custom finishes
available on request
TiN · TiCN · CrN · Nitriding
Market Sectors

Machine Parts Industries

Typical machine parts applications across five sectors. Confirm sector-specific materials, inspection and documentation before ordering.

Automotive
Brackets · Shafts · Housings · Pins

Engine components, transmission parts, structural brackets, and sensor housings for OEM tier-1 and tier-2 automotive suppliers globally.

Aerospace
Fittings · Brackets · Fasteners

Structural fittings, actuator components and fasteners in titanium, Inconel and aluminum. Agree customer-specific quality and traceability records.

Medical
Implants · Instruments · Housings

Surgical instrument components, implant fixtures, and diagnostic device housings in biocompatible stainless, titanium, and PEEK materials.

Electronics
Connectors · PCB Components · Enclosures

Precision CNC machined connector housings, PCB mounting brackets, heat sink components, and EMI shielding enclosures for electronics manufacturers.

Industrial
Gears · Bearings · Fixtures · Arms

Machine enclosures, robotic arm components, conveyor hardware, jig fixtures, and automation tooling for industrial machinery manufacturers.

Why SSPrecision

Why Choose Us
for Machine Parts

Plan the order around drawing approval, traceable inspection records and a confirmed production route.

01

Which materials suit machine parts?

Specify load, temperature and corrosion exposure so the material grade and finish can be reviewed for the application.

02

How are machine parts tolerances set?

Mark critical datums and mating fits. Confirm achievable tolerances and the inspection method before manufacture.

03

What files are needed for a quote?

Send STEP or IGES plus a dimensioned PDF, quantity, material, finish and critical fits for a manufacturability review.

04
Project-Specific Lead Time

Confirm the schedule after drawing review, material availability and finishing requirements. Request an urgent-order assessment where needed.

05
Low MOQ + High Volume Support

Quote prototype and production quantities together to compare setup costs, batch pricing and inspection requirements.

06
50+ Materials Available

Metals and engineering plastics include aluminum, stainless, titanium, copper, POM, PEEK and PTFE. Confirm grade availability and required certificates.

07
ISO 9001:2015 Certified

Request the current ISO 9001 certificate and agree first-article, in-process and final inspection records for the order.

✓
Free DFM Review

Upload a drawing for material, tolerance and lead-time review. Confirm response timing for your enquiry.

Get Free DFM Review →
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⚙️ Core Services

Stamping Dies Mfg
Full die manufacturing
Stamping Dies
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Progressive die stamping
Progressive
Transfer Stamping
Transfer die solutions
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Ultra‑small parts
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Multi‑material molding
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Spare parts mfg
Tooling Parts Mfg

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Stamping Die
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Injection Mold
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Spare Parts
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Repair & replacement
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Engineering Review & Quotation

Start Your Custom Machine
Parts Project Today

Request a quote from a custom machine parts manufacturer in China. Include CAD files, quantity, material, finish and critical fits for an engineering review.

✓
ISO 9001:2015 Certified
✓
NDA Available
✓
STEP / IGES / DWG / PDF Accepted
✓
Prototype to Mass Production
✓
Global Express Shipping