Professional Steel CNC Machining Service
Utilizing 3/4/5-axis CNC centers and CNC lathes for steel CNC machining, delivering high-precision and high-efficiency steel parts production.
Steel CNC Machining Solutions with 20+ Years Expertise
- 20+ Years Experience – specialized steel CNC machining under a rigorous ISO 9001 quality management system, from design to post-processing.
- High-Precision Equipment – Haas 4SS machining centers (±0.003mm accuracy) and Tsugami Swiss lathes (±0.005mm concentricity).
- Full Material Coverage – stainless steel, carbon steel, tool steel, and alloy steels.
- Complex Applications – medical precision shafts, aerospace structural parts, automotive engine flanges, and industrial gears for high-reliability industries.
High-Precision Steel CNC Machining Advantages
- 3/4/5-Axis Capability – specialized in complex components such as impellers, engine turbines, stainless steel valve bodies, and carbon steel pump housings.
- Single-Setup Accuracy – 5-axis simultaneous machining achieves ±0.005mm accuracy in a single setup, eliminating repositioning errors.
- Thermal Deformation Control – high-pressure cooling and dedicated carbide tools control thermal deformation and hardening during stainless and tool steel machining, with surface finish Ra 0.8µm.
Large-Scale Steel CNC Machining Solutions
- Gantry Work Range – worktable range of 3500×400×450mm with ±0.01mm accuracy.
- Heavy-Duty Applications – heavy machinery components, ship propeller housings, automotive frames, and carbon steel welding bases.
- Stability & Integration – equipment rigidity and layered cutting ensure stability, while integrated roughing and finishing reduce errors from repositioning.
Lathe-Based Steel CNC Machining Solutions
- Swiss-Type Precision – slender shafts (≤21mm diameter) such as medical guide wires and automotive shift rods, achieving ≤0.005mm concentricity.
- Turn-Mill Integration – compound equipment enables integrated turning, milling, and drilling for workpieces up to 200×280mm with ±0.005mm accuracy (bearing sleeves, transmission shafts, hydraulic cylinders).
- Hardened Steel Machining – CBN tools and temperature-controlled cooling ensure superior surface integrity and wear resistance.
Steel CNC Machining Services
Professional steel CNC machining solutions for precision parts manufacturing. We accept 1-piece orders with 7-day prototype delivery, and flexible small-batch production accelerates product development and reduces time-to-market.
CNC Machining Steel Parts
CNC Machining Steel Parts
Lathe Machining Steel Parts
CNC Machining Steel Parts
Lathe Machining Steel Parts
CNC Machining Steel Parts
Finishing & Materials Capabilities for Steel CNC Machining Service
Post-processing options and steel material coverage.
Mechanical Treatment
- Polishing — Smooth surface, mirror-like finish
- Sand Blasting — Uniform matte texture, improved adhesion
- Brushing — Consistent linear grain, scratch resistance
- Buffing — High-gloss finish, deburring capability
Chemical Treatment
- Anodizing — Enhanced corrosion and wear resistance
- Electroplating — Metallic coating, improved conductivity
- Surface Etching — Precise pattern creation, anti-slip properties
Coating Processes
- UV Coating — Hard protective layer, scratch resistance
- Overmolding — Soft-touch surface, impact absorption
- Hot Stamping — Metallic foil transfer, decorative effect
- Heat Transfer Printing — Complex pattern application, durability
Marking & Printing
- Screen Printing — Permanent graphic application
- Laser Engraving — Precise permanent marking, high resolution
- Leather Grain — Simulated leather texture, aesthetic appeal
Carbon Steel
- Low Carbon (Q235, 1018) — Low strength, good toughness, easy to weld, low cost
- Medium Carbon (45#, 1045) — Moderate strength and hardness, balanced properties
- High Carbon (T8, T10) — High hardness, good wear resistance, but brittle
Alloy Steel
- Chromium-Molybdenum (4140, 42CrMo) — High strength, high toughness, good hardenability
Stainless Steel
- Austenitic (304, 316) — Excellent corrosion resistance, non-magnetic
- Martensitic (420, 440C) — Heat-treatable to high hardness, magnetic
- Ferritic (430) — Average corrosion resistance, magnetic, not heat-strengthenable
Tool Steel
- Cold Work (D2, A2) — High hardness and wear resistance for cold forming
- Hot Work (H13) — Retains hardness at high temperatures, resists thermal fatigue
- Plastic Mold (P20) — Pre-hardened, no heat treatment needed after machining
Inspection Capability Matrix
Dimensional Inspection
CMM ±0.002mm
Standard: ISO 2768-m
Hardness Testing
Rockwell / Brinell / Vickers testers
Standard: ASTM E18/E10/E92
NDT Inspection
Ultrasonic / magnetic particle flaw detectors
Standard: ASME V / ASTM E1444
Industry Applications
Construction Machinery & Heavy Equipment
Precision control for oversized workpieces (over 3 meters).
Mold Manufacturing
Automotive body panel molds, plastic molds, die-casting molds.
Rail Traffic
Bogies, couplings, and brake discs.
Automobile Manufacturing
Crankshafts, camshafts, cylinder blocks, and more.
Industrial Automation & Robotics
Robot joints, linear guide seats, and automated fixtures.
Aerospace and Military Industry
Engine mounting brackets, landing gear components, missile compartments.
Energy Equipment
Wind power, nuclear power, and petrochemical industry components.
Shipbuilding & Oceanography Engineering
Crankcase, connecting rod, winch, and anchor winch base.
Steel CNC Machining Service Advantages
CNX Precision Steel CNC Machining is built on core advantages including high-rigidity equipment configurations, expertise in specialty steels, precision machining capabilities, and intelligent quality traceability. Through industry-specific solutions, an optimized process system, and continuous technological innovation, we provide customers with one-stop steel parts manufacturing services ranging from material selection to surface treatment.
Validation Data:
Decision-Making Reference for Choosing Us:
- ✓ Involves high-hardness materials such as hardened steel (HRC > 45)
- ✓ Requires precision levels above ±0.01mm
- ✓ Needs heavy-duty or large-scale part machining
- ✓ Pursues batch production stability (CPK ≥ 1.67)
- ✓ Requires integrated heat treatment and machining coordination
- ✓ Emphasizes continuous cost reduction through process optimization
How to Start a Steel CNC Machining Project?
Customers provide STEP/X_T/IGES drawings for technical review by our steel CNC machining engineers.
What Information is Needed for Steel Machining Quotes?
We provide transparent quotations based on material specifications, precision needs, and order quantity after drawing confirmation.
What Happens After Order Confirmation?
Upon quote approval, customers sign agreements and production begins immediately for steel component machining projects.
How Do We Ensure Steel Parts Delivery Schedules?
Our steel CNC machining starts after payment, with protective packaging and real-time logistics tracking.
Is Post-Delivery Support Available for Steel Projects?
We offer 30-day technical support to ensure machined steel parts meet application requirements.