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CNC turning is a subtractive manufacturing process where a cutting tool removes material from a rotating workpiece to create cylindrical parts. At Borway Precision, our CNC turning centers produce everything from micro-precision pins to large-diameter shafts and complex valve bodies—all from our Shenzhen-based factory.
A bar of material (metal or plastic) is held and rotated by a spindle at high speeds. A stationary cutting tool follows programmed paths to shape the material to exact specifications. The machine is controlled by G-Code generated from your 3D CAD model through CAM software, dictating spindle speed, tool movement, feed rate, and depth of cut.
Unlike milling where the tool rotates and the workpiece moves, turning excels at creating parts with rotational symmetry—shafts, bushings, connectors, and threaded components. The process ensures exceptional roundness and concentricity, critical for parts that must fit or seal precisely.
Send your STEP/IGES files. Our engineers perform manufacturability analysis to optimize tool paths and reduce costs—before production begins.
Receive a transparent quote with material options, tolerances, finishes, and lead times. No hidden costs, complete clarity.
Production starts on our advanced lathes. In-process quality checks ensure every part meets specifications.
Final CMM inspection, dimensional reports provided. Parts are carefully packed and shipped globally with full tracking.
We stock a comprehensive range of metals and plastics to meet diverse application requirements—from lightweight aerospace components to corrosion-resistant medical devices.
Category | Common Grades | Typical Applications |
Free-Machining & Alloy Steel | 1215, 12L14, 4140, 4340 | Fasteners, hydraulic fittings, shafts |
Stainless Steel | 303, 304, 316L, 17-4 | Medical instruments, food-grade parts, marine components |
Aluminum | 6061-T6, 7075-T6, 2011 | Connector housings, lens mounts, lightweight parts |
Copper & Brass | C360 Brass, C110 Copper, C932 Bronze | Valves, electrical connectors, bushings |
Titanium & Superalloys | Grade 2, Grade 5 (Ti-6Al-4V) | Aerospace fasteners, implants |
Engineering Plastics | PEEK, Delrin (Acetal), Nylon, PTFE | Insulators, wear pads, prototypes |
If you don't see your required alloy or grade listed, simply select "Custom" during your quote request. Our sourcing team will procure the material and provide a detailed quote.
We offer a range of standard post-processing options to enhance appearance, durability, and performance. All finishing is coordinated in-house to ensure seamless project management.
Finish Type | Description | Best For |
As-Machined | Standard turned surface, 125 Ra or better, fastest turnaround | Functional prototypes, internal components |
Bead Blasting | Uniform matte finish via glass bead media | Parts requiring clean, uniform appearance |
Passivation | Enhances corrosion resistance for stainless steel | Medical, food-grade applications |
Anodizing (Aluminum) | Type II/III, adds color and wear resistance | Consumer electronics, aerospace |
Plating | Nickel, zinc, chrome plating available | Corrosion protection, decorative finish |
Custom | Specialized finishes per your requirements | Unique application needs |
Specification | Our Standard Capability |
Maximum Turning Diameter | Up to 500mm |
Maximum Turning Length | Up to 2500mm |
Bar Stock Capacity | Up to 500mm through-spindle |
Standard Tolerances | ± 0.01mm (diametric) |
Precision Tolerance Capability | ± 0.005mm achievable with CMM inspection and full reporting |
Surface Finish (Turned) | Standard Ra 1.6 μm (125 Ra); precision turning to Ra 0.8 μm |
Threading | All standard internal/external threads; single-point or thread milling |
Minimum Feature Size | 0.50 mm (dependent on material and geometry) |
Concentricity/Roundness | Held to print requirements; single-setup ensures best results |
Our precision CNC turning capabilities are essential for producing high-quality rotational components across diverse sectors:
Industry | Typical Parts |
Medical | Bone screws, surgical instrument handles, implant components |
Automotive | Fuel system parts, sensor housings, custom fasteners, valve guides |
Aerospace | Hydraulic fittings, connector shells, actuator shafts, threaded inserts |
Consumer Electronics | Connector pins, camera lens mounts, audio jack housings, volume knobs |
Industrial | Hydraulic/pneumatic fittings, valve stems, pump shafts, threaded rods |
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