Custom CNC Turning Stainless Steel Parts in China
Precision Stainless Steel CNC Turning from China
Our manufacturing facility in China specializes in producing high-quality custom stainless steel CNC turned parts for global clients. With advanced machining capabilities and extensive experience working with all stainless steel grades, we deliver precision components that meet exact specifications and rigorous quality standards.
Advanced Manufacturing Capabilities
Our facility operates state-of-the-art multi-axis CNC turning centers capable of handling complex geometries and maintaining tight tolerances up to ±0.005mm for critical dimensions.
Comprehensive Material Expertise
We have extensive experience machining all stainless steel families including austenitic, martensitic, ferritic, duplex, and precipitation-hardening grades for diverse applications.
Quality Focused Production
Each component undergoes rigorous inspection using precision measuring instruments to ensure dimensional accuracy and surface quality before shipment.
Our CNC Turning Process
Design Analysis
Technical review of part drawings and specifications to ensure manufacturability.
Material Selection
Choosing the optimal stainless steel grade based on application requirements.
CNC Programming
Creating efficient toolpaths and machining sequences using advanced CAM software.
Precision Machining
Executing turning operations with strict process controls and real-time monitoring.
Quality Verification
Comprehensive dimensional inspection and surface finish evaluation.
Common CNC Turned Stainless Steel Parts We Produce
Custom Racing Car Components
High-performance stainless steel parts for racing applications requiring precision and durability under extreme conditions.
Eccentric Shafts
Precision eccentric shafts for specialized mechanical applications requiring offset rotational motion.
Custom Eccentric Shafts
Specialized eccentric shafts designed for specific industrial applications with precise dimensional requirements.
NPT Pipe Fittings
Precision NPT thread pipe fittings for fluid and gas systems requiring reliable sealing and connection.
Threaded Rods & Fasteners
Custom threaded rods, studs, and fasteners with precise thread profiles for various industrial applications.
Steel Eccentric Shafts
High-strength steel eccentric shafts for heavy-duty applications requiring durability and precision.
Internal Spline Hollow Shafts
Hollow shafts with internal splines for torque transmission in compact mechanical assemblies.
NPT Thread Quick Connectors
Quick-connect fittings with NPT threads for fast and secure fluid system connections.
Stainless Steel Materials We Machine
| Material Grade | Family | Key Properties | Common Applications |
|---|---|---|---|
| 304 / 304L | Austenitic | Excellent corrosion resistance, good formability and weldability | Food processing equipment, chemical containers, architectural applications |
| 316 / 316L | Austenitic | Superior corrosion resistance, especially against chlorides | Marine components, pharmaceutical equipment, chemical processing |
| 303 | Austenitic | Enhanced machinability, good corrosion resistance | Shafts, fittings, fasteners, valve components |
| 321 | Austenitic | Stabilized with titanium, resists intergranular corrosion | Aircraft exhaust systems, high-temperature applications |
| 347 | Austenitic | Stabilized with niobium, excellent high-temperature strength | Boiler parts, jet engine components, high-temperature fasteners |
| 410 | Martensitic | Good strength, moderate corrosion resistance, heat treatable | Valve components, pump shafts, fasteners, cutlery |
| 416 | Martensitic | Free-machining grade, good strength, magnetic | Screws, gears, shafts, valve parts |
| 420 | Martensitic | High hardness, good wear resistance, moderate corrosion resistance | Surgical instruments, cutlery, molds, valve trim |
| 440C | Martensitic | High carbon content, excellent hardness and wear resistance | Bearings, valve components, cutlery, medical instruments |
| 17-4PH | Precipitation Hardening | High strength, good corrosion resistance, can be heat treated | Aerospace components, nuclear reactor parts, pump shafts |
| 15-5PH | Precipitation Hardening | Similar to 17-4PH with improved toughness and transverse properties | Aerospace and defense components, high-strength fittings |
| 2205 / 1.4462 | Duplex | High strength, excellent corrosion resistance, good stress corrosion cracking resistance | Chemical processing equipment, oil and gas components, marine applications |
| 2507 / 1.4410 | Super Duplex | Higher strength and corrosion resistance than standard duplex grades | Offshore oil and gas equipment, desalination plants, chemical tankers |
Technical Specifications & Capabilities
Maximum Turning Diameter
Up to 500mm
Maximum Turning Length
Up to 1500mm
Tolerance Range
Standard: ±0.05mm, Precision: ±0.01mm, High Precision: ±0.005mm
Surface Finish
Standard: 3.2μm Ra, Fine: 1.6μm Ra, High Finish: 0.8μm Ra
Machine Accuracy
Positioning accuracy: ±0.003mm, Repeatability: ±0.001mm
Production Volume
Prototype (1-10 pieces) to mass production (10,000+ pieces)
Stainless Steel Machining Challenges & Solutions
Work Hardening Management
Stainless steel has a strong tendency to work-harden during machining, which can lead to rapid tool wear, poor surface finish, and dimensional inaccuracies.
Our Approach: We use sharp cutting tools with specialized geometries and coatings designed for stainless steel. Our machining parameters are optimized to maintain consistent chip loads and prevent excessive work hardening. We employ climb milling techniques where appropriate to minimize work hardening effects.
Heat Control Strategies
The low thermal conductivity of stainless steel causes heat to concentrate at the cutting edge rather than being carried away with chips, potentially affecting part quality and tool life.
Our Approach: We utilize high-pressure coolant systems with specialized coolant formulations for stainless steel. Our toolpaths are programmed to ensure adequate cooling time, and we implement peck drilling cycles for deep holes to allow heat dissipation. For particularly challenging operations, we may use compressed air or minimum quantity lubrication (MQL) systems.
Chip Control Techniques
Long, stringy chips common in stainless steel machining can wrap around tools and workpieces, causing surface damage and potential machine downtime.
Our Approach: We employ chip-breaking tool geometries and optimize feed rates and depths of cut to produce small, manageable chips. Our CNC programs include chip-breaking cycles, and we use high-pressure coolant to effectively evacuate chips from the cutting zone.
Industries We Serve
General Manufacturing
Precision components for machinery, automation equipment, and industrial systems including shafts, bushings, and custom fasteners.
Fluid Power & Pumps
Hydraulic and pneumatic components, valve bodies, pump shafts, and impellers for various fluid handling applications.
Automotive & Transportation
Components for fuel systems, braking systems, and engine applications that require corrosion resistance and durability.
Tooling & Equipment
Custom tooling components, fixture elements, and equipment parts for manufacturing and maintenance applications.
About Us
We provide custom machined parts, 5-axis linkage CNC machining, and the design, production, and assembly of machinery and equipment.