CNC Mechanical Spare Parts — Stainless Steel
Precision-turned stainless steel shaft with stepped diameters, threaded ends, and keyway slots. Uniform surface finish from CNC turning center with live tooling.
Stainless 304 Shaft · CNC Turned
OEM Spare Parts
CNC Machining Spare Parts — Precision Components for Every Industry
3-, 4- and 5-axis CNC milling and turning for precision components in aluminum, stainless steel, brass and engineering plastics — from prototype to serial production.
Product Gallery
Recent CNC machining projects
5-Axis CNC Machined Aluminum Auto Parts
Complex aluminum manifold with multi-angle machined ports and internal passages. Achieved through simultaneous 5-axis machining for single-setup precision.
5-Axis · Aluminum Manifold
Aluminum Stainless Steel CNC Railway Parts
Dual-metal railway component with stainless steel insert pressed into aluminum body. Precision-machined interface surfaces for reliable assembly fit.
Railway · Stainless Steel Assembly
CNC Machine Spare Parts — 5-Axis Precision
Silver-toned aluminum component with circular bore pattern and radial slot features. Multiple machined faces indicate multi-setup or 5-axis processing.
5-Axis · Bore Pattern Precision
Category Overview
CNC Machining Spare Parts
Materials, capabilities and industries served by our 3-, 4- and 5-axis CNC machining centers — from aluminum manifolds to stainless steel railway components.
Advantages
Why engineers specify Force Machining
3, 4 and 5
Engineered and verified in-house so field performance matches drawing intent.
Live
tool CNC turning up to Ø 500 mm
Tolerances to ±0.01 mm
Engineered and verified in-house so field performance matches drawing intent.
Ra 0.4 μm surface
Engineered and verified in-house so field performance matches drawing intent.
First article inspection with
Engineered and verified in-house so field performance matches drawing intent.
Aluminum, stainless, steel, brass,
Engineered and verified in-house so field performance matches drawing intent.
Applications
Where these parts perform
- Automotive & EV
- Aerospace
- Medical equipment
- Industrial automation
- Oil & gas
- Railway
Technical Data
Headline performance figures
Axes
3 / 4 / 5 axis milling, live-tool turning
Max part size
1500 × 800 × 600 mm
Tolerance
±0.01 mm
Surface finish
Ra 0.4 – 3.2 μm
Material
Certified metallurgy at every heat
Every bar and blank arrives with a mill certificate. We match material grade to service duty — from general-purpose carbon steel to corrosion-resistant stainless and high-fatigue alloys.
Carbon Steel
C45, 40Cr — general-purpose strength with induction hardening on wear surfaces.
Alloy Steel
42CrMo4 — high fatigue strength for heavy-duty and shock-loaded drives.
Stainless Steel
304 / 316 — corrosion resistance for food, marine and chemical duty.
Ductile Iron
GGG50 / GGG60 — vibration damping with high tensile strength.
Manufacturing
From drawing to inspected part
01
Engineering & DFM Review
Our application engineers review your 2D drawing or 3D STEP model, run a design-for-manufacture study, and recommend material grade, heat treatment and surface finish to meet the specified duty cycle at the lowest landed cost.
02
Precision Manufacturing
CNC turning, 3–5 axis milling, cylindrical and internal grinding, gear hobbing, induction and case hardening — all performed in-house on calibrated equipment under IATF 16949-aligned process control.
03
Quality Verification
Statistical process control on critical dimensions, first-article (FAI/PPAP) approval, CMM traceable measurement, Rockwell/Brinell hardness mapping and Ra surface-roughness verification per ISO 9001:2015.
04
Preservation & Dispatch
VCI oil, desiccant sachet and heat-sealed PE for corrosion protection; ISPM-15 fumigation-free plywood cases; barcode labelling and pre-cleared export documentation for door-to-door delivery.
Industries
Trusted across demanding sectors
Our parts run inside gearboxes, drivelines and finished machinery for OEMs in a dozen industries — supported by full traceability and consistent global delivery.
Automotive Tier 1 & Tier 2 OEM
Agricultural Machinery & Harvesters
Construction & Earth-Moving Equipment
Oil, Gas & Petrochemical Downstream
Mining, Aggregates & Bulk Handling
Steel Mills & Metallurgical Plants
Cement, Lime & Building Materials
Marine, Shipbuilding & Offshore
Power Generation & Renewables
Food, Beverage & Pharmaceutical
Water & Wastewater Treatment
General Industrial Machinery Builders
Quality Inspection
Six layers of verification
Every batch passes chemistry, dimension, hardness, balance, finish and NDT gates before it leaves the plant.
Q.01
Material Certification (EN 10204 3.1)
Every heat is verified by optical emission spectrometry against the ordered grade. Certified mill test reports (MTC) accompany each shipment and are archived for ten years for full lot-to-lot traceability.
Q.02
Dimensional Inspection (CMM & FAI)
Zeiss and Mitutoyo coordinate measuring machines verify GD&T callouts to ISO 1101. First-article inspection (FAI) and PPAP Level 3 packages are issued for automotive and safety-critical parts on request.
Q.03
Hardness & Metallurgical Analysis
Rockwell (HRC), Brinell (HB) and micro-Vickers hardness maps confirm case depth and core properties. Metallographic sections are examined at 100–500× for grain size, phase distribution and inclusion rating.
Q.04
Dynamic Balancing (ISO 1940)
Rotating components — pulleys, sheaves and gears above 1,800 RPM — are dynamic-balanced to G6.3 as standard, with G2.5 available for high-speed drives. Residual unbalance is reported in g·mm per plane.
Q.05
Surface Finish & Coating Verification
Contact and non-contact Ra/Rz measurement, coating thickness by magnetic and eddy-current gauge, adhesion by cross-cut, and 500–1,000 h salt-spray corrosion testing per ASTM B117 on plated and painted parts.
Q.06
Non-Destructive Testing (NDT)
Magnetic particle (MPI), liquid dye penetrant (LPI) and ultrasonic (UT) inspection by ASNT Level II operators. Radiographic (RT) inspection subcontracted to accredited third-party labs when required.
SEC. 10 // PACKAGING
Export-grade packaging
- VCI film wrap and rust-inhibitor oil protect machined surfaces for up to 12 months of storage or transit
- Individual foam, corrugated dividers or moulded PE cradles isolate parts from impact and abrasion
- Fumigation-free plywood cases certified to ISPM-15 accepted at every major port worldwide
- Barcode labels, part-number marking and customer-branded packaging (private label) available on request
- Loose, bulk, palletised or kitted assemblies — packed to your inbound receiving specification
SEC. 11 // SHIPPING
Global shipping desk
- Incoterms 2020: FOB Shanghai / Ningbo / Qingdao standard, with EXW, CIF, CFR, DDP and DAP on request
- Air freight, sea LCL and FCL, and China–Europe rail coordinated in-house — no forwarder hand-offs
- Full export document set — Certificate of Origin (CO / Form A / FTA), packing list, commercial invoice, B/L and material test certificate
- Delivered to 40+ countries; established freight lanes to Germany, USA, Italy, Poland, Türkiye, Brazil, Mexico and Australia
- Real-time shipment tracking and consolidated container loading for multi-SKU orders
Downloads
Datasheets and inspection templates
FAQ
Answers before you ask
The questions our sales engineers hear most often. Missing something? Message us — a real engineer replies within one business day.
Standard catalogue items ship from stock in single pieces. Custom-machined parts typically start at 20 pieces per SKU, with lower prototype quantities of 1–5 accepted at a modest set-up charge. For high-volume programmes we scale to 100,000+ pieces per year.
Yes — full OEM/ODM capability. Send a 2D drawing (PDF, DWG, DXF), a 3D model (STEP, IGES, X_T) or a physical reference sample. Our engineers issue a DFM review, firm quotation and lead time within one business day. Under NDA we treat every drawing as customer IP and never share it with third parties.
Turning and milling routinely hold ±0.02 mm and Ra 0.8 μm. Ground journals reach IT5 / ±0.005 mm and Ra 0.2 μm. Bore concentricity to 0.01 mm TIR, gear quality to DIN 6 / AGMA 12. Tighter tolerances are quoted on a feature-by-feature basis.
Standard parts ship in 2–3 weeks. Custom-machined and heat-treated parts run 4–6 weeks. Tooling-intensive items (large forgings, sand-cast blanks) or full PPAP approval add 1–2 weeks. Airfreight sample runs can compress this to 10 working days.
Yes. Every shipment includes an EN 10204 3.1 material test certificate (MTC), a dimensional inspection report and — on request — Rockwell/Brinell hardness readings, dynamic balancing reports (ISO 1940) and NDT results (MPI, LPI, UT). PPAP Level 1–5 packages are issued for automotive customers.
The plant is certified to ISO 9001:2015 with an internal quality system aligned to IATF 16949 for automotive customers. Environmental management follows ISO 14001, and welded pressure parts are produced under EN ISO 3834 procedures with certified welders.
Absolutely. We sign mutual NDAs before quotation, restrict drawings to a need-to-know engineering team, and never publish customer part numbers, photos or applications without written approval. Dedicated tooling remains customer property and is stored under lot ID for repeat orders.
Incoterms 2020: EXW, FOB, CFR, CIF, DAP, DDP. Invoicing in USD, EUR, GBP or CNY. Standard terms are 30% T/T deposit with balance against B/L copy; irrevocable L/C at sight is welcomed for orders above USD 30,000, and open account (Net 30–60) is available for approved repeat customers.
Yes. We ship DDP to customer warehouses across the EU, UK, North America, Türkiye and Australia, and support call-off kanban, VMI and consignment stock programmes for repeat OEM customers.
Send your drawing or reference sample to our sales engineers via the inquiry form on this page or by email. You will receive a DFM review, sample quotation and realistic lead time within one business day, followed by an initial sample and inspection report before series release.
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Download Catalogue
Complete range, material grades, dimensional envelope and load ratings — the working PDF our engineers use.
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