CNC Steel Parts - Custom Precision Machining Service
Your Technical Drawings, Our Precision Execution - ±0.01mm Tolerance Guaranteed with 15-Years Expertise.
Manufacture of CNC Steel Parts
RALLY specializes in manufacturing custom CNC steel parts according to your technical drawings. Whether you need high-precision prototypes or large-volume production, we ensure tight tolerances, excellent surface finishes, and fast lead times.
✅ Custom steel parts from drawings
✅ High-precision machining with tight tolerances
✅ Fast turnaround & global shipping
Our Key Advantages:
🔥 ISO 9001 Certified – Guaranteed quality
⏳ Fast Prototyping – Quick turnaround
📦 Small & Large Volume Production – Flexible order quantities
🌍 Global Shipping – On-time delivery worldwide
Common CNC Steel Parts
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All components support custom surface treatments (Zinc plating, Nickel coating, Black oxide, etc.)
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Capable of handling complex geometries:
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Multi-axis contouring (5-axis simultaneous)
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Micro-machining (down to 0.1mm features)
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Material certifications available:
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EN 10204 3.1/3.2
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ASTM material test reports
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RoHS/REACH compliance documentation
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| Component Type | Common Applications | Typical Materials | Key Machining Features |
|---|---|---|---|
| Precision Shafts | Automotive, Machinery | 4140 Alloy Steel, 1045 Carbon | High torque resistance, ±0.005mm tolerance |
| Gear Components | Power Transmission Systems | 8620 Case-Hardening Steel | Involute profile machining, heat-treated surfaces |
| Mounting Brackets | Industrial Equipment | A36 Mild Steel, SS304 | Complex weldment-ready geometries |
| Flanges & Fittings | Pipeline Systems | ASTM A105, ASTM A350 | ASME B16.5/B16.47 compliance machining |
| Connecting Rods | Engine Assemblies | 4340 High-Strength Steel | Fatigue-resistant, shot peening finish |
| Enclosures & Housings | Electrical Systems | 1018 Steel, Galvanized Steel | EMI/RFI shielding features |
| Valve Bodies | Fluid Control Systems | 17-4PH Stainless Steel | High-pressure sealing surfaces |
| Die/Mold Components | Manufacturing Tools | D2 Tool Steel, H13 Hot Work | Mirror finishes (Ra≤0.2μm) |
| Hydraulic Parts | Heavy Machinery | 4140 HT, 4340 QT | Precision honed bores (IT6 grade) |
| Fastener Tooling | Production Lines | S7 Shock-Resistant Steel | Thread forming profiles, wear coating |
| Linear Guide Rails | Automation Systems | 52100 Bearing Steel | Grinding-milling hybrid processing |
| Bushings & Spacers | Rotating Equipment | 12L14 Free-Machining Steel | ID/OD concentricity ≤0.01mm |
| Sensor Mounts | Instrumentation | 303 Stainless Steel | Vibration-damping structural design |
| Shaft Couplings | Power Transmission | 1045 Carbon Steel | Keyway & spline machining capability |
| Custom Cutting Tools | Specialized Manufacturing | M2 High-Speed Steel | Custom flute geometry programming |
Send us your technical drawings today and get a quote!
Our Equipments
With 18 years of CNC machining expertise, we've continuously expanded both our skills and equipment capabilities. Our facility houses 50 CNC machining centers, complemented by 20 CNC lathes for diverse manufacturing needs. To enhance precision and versatility, we’ve invested in 10 four-axis machining centers and 4 five-axis machining centers. Additionally, our 10 Citizen Swiss-type lathes further reinforce our commitment to high-precision production. This extensive infrastructure ensures we deliver exceptional quality and efficiency across a wide range of machining projects.
Why Choose RALLY
Advanced CNC Machining Capabilities:
- 5-axis CNC machining for complex geometries
- High-precision turning, milling, drilling, and grinding
- Tolerances up to ±0.01mm
- Smooth surface finishes (Ra 0.8μm or better)
Material Option:
We work with a variety of steel materials, including:
- Carbon Steel (1045, 1018, A36, etc.)
- Stainless Steel (303, 304, 316, 17-4PH, etc.)
- Alloy Steel (4140, 4340, etc.)
Finishing options:
✔ Polishing / Grinding
✔ Black Oxide / Zinc Plating
✔ Anodizing / Powder Coating
✔ Heat Treatment
Industries We Serve
Our CNC steel parts are widely used in industries such as:
🏭 Automotive - Engine components, transmission parts
🔩 Industrial Machinery - Gears, shafts, housings
🚀 Aerospace - High-strength steel parts for aircraft
⚙️ Electronics - Precision housings and brackets
Need Custom CNC Steel Parts?
Upload your technical drawings and receive a fast quote within 24 hours! ✅ Quick Response | ✅ Competitive Pricing | ✅ Precision Guaranteed
General Questions:
Quick Quote
Get An Accurate Quote For Your Projects. Send your 2D/3D drawings via online form.
- Machined prototypes in 3-5 days
- 60+metal and plastic material
- 20+ surface finishes
- Tolerances down to +/-0.01mm
- Customized design based on drawing
- Free samples before order confirmation
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