Custom CNC Turning Service
with Mastars
Custom CNC turning services (rapid prototyping to production runs): 0.005 mm tight tolerance,
1-day fast lead times, competitive pricing.
Production Base
CNC Machining
SHEN ZHEN
Injection Molding
Dong Guang
Mold Making
SHEN ZHEN
3D Printing
Dong Guang
CNC Turning with Mastars
Leverage our on-demand CNC turning service for reliable metal and plastic turned parts. With advanced technologies and expert technicians, RapidDirect delivers high-accuracy custom prototypes and end-use parts—regardless of complexity—with deliveries as fast as one day.
Our precision lathes (equipped with live tooling for holes, slots, flats) produce cost-effective simple/complex cylindrical geometries. Full automation enables faster, easier, low-cost production of hundreds of consistent parts.
Rapid Tooling
CNC’s compatibility with virtually all materials makes it ideal for rapid tooling—including fixture and mold fabrication.
Rapid Prototyping
CNC’s broad material compatibility, low unit cost and fast production speed make it ideal for prototyping.
Serial Production
High-quality finishes, extensive material options and precise tolerances make CNC lathe turning a top choice for serial production.
A Trusted Partner for Full-Scale Production
Our team is ready to help you get your production project started with help from our experts at every step of the process.
Mastars CNC Machining Solutions
Solutions
Prototyping Service
Low and High-Volume Production
Custom CNC Machining Materials
Materials Available at Mastars
| Aluminum | Aluminum 5052, Aluminum 7075 & 7075-T6, Aluminum 6063-T5, Aluminum 7050-T7451, Aluminum MIC-6, Aluminum 6061-T6, Aluminum 2024-T3 | |||
| Bronze/Brass | Brass C360, Brass 260, C932 M07 Bearing Bronze | |||
| Copper | EPT Copper C110, Copper 101 | |||
| Plastics | ABS, Acetal [Delrin], Acrylic, G-10 Garolite, Nylon 6/6, PEEK, Polycarbonate, PTFE [Teflon], Polypropylene, Ultra-High Molecular Weight Polyethylene | |||
| Steel / Titanium / Zinc | Alloy Steel 4130, 4140, ASTM A36, Stainless Steel 15-5, 17-4, 18-8, 303, Stainless Steel 303, 304, 316/316L, Stainless Steel 416, 420, Low Carbon Steel, Steel A36, Titanium Grade 2, Titanium 6Al-4V, Zinc Sheet Alloy 500 | |||
CNC Turning General Tolearances
As an ISO 9001 certified company, we machine CNC turning lathe parts to meet tight tolerance requirements. Based on your design, our CNC lattes can reach tolerances of up to ±0.005”.
| Description | General Tolerance | |||
| Distance Dimensions | For features of size (Length, width, height, diameter) and location (position, concentricity, symmetry) +/- 0.005”. | |||
| Orientation and Form Dimensions | 0-12" +/- 0.005", Angularity 1/2 degree. For 24" and beyond please consult Xometry's Manufacturing Standards. | |||
| Edge Condition | Sharp edges will be broken and deburred by default. Critical edges that must be left sharp should be noted and specified on a print. | |||
Mastars' CNC Turning Parts
Our Ideas Have Helped Clients Bring Hundreds Of Products To Market
CNC Turning Design Guidelines
| Recommended Size | ||||
| Radii | Internal radii should be at least 1/3 of the cavity depth. Use larger radii whenever possible. | |||
| Threads and Tapped Holes | External and internal threads can be precisely cut. Standard thread sizes from M1.6 and larger are feasible. | |||
| Ensure a minimum thread length of 1.5 times the diameter for stability. | ||||
| Minumum Wall Thickness | Maintain a minimum wall thickness of 0.8 mm for metals and 1.5 mm for plastics to ensure structural integrity without compromising the machining process. | |||
| Text | Engraving should have a minimum character height of 2 mm and a depth of at least 0.5 mm to ensure legibility after machining. | |||
| Holes | Minimum hole diameter of 0.5 mm. For deep holes, maintain a diameter to depth ratio of 1:10 to avoid tool deflection and ensure hole quality. | |||
Available Finishes
As-Milled
Bead Blast
Anodized (Type II Or Type III)
Type II anodization (aluminum-only) offers corrosion resistance and common colors (clear, black, red, gold). Type III is thicker, with both corrosion and wear resistance.
Powder Coat
Custom
Advantages & Applications of CNC Turning
Advantages of CNC Turning
CNC turning offers numerous advantages for manufacturing:
Precision: Tight tolerances for seamless complex assembly integration
Efficiency: Programmed automated production, fast and consistent with minimal supervision
Flexibility: Quick reprogramming adapts to diverse production needs
Repeatability: Automated mass production ensures identical part quality
Cost-Saving: Less manual labor cuts costs and reduces human error
Material Versatility: Handles metals, plastics, composites and more
Safety: Enclosed automation minimizes workplace accident risks
Applications of CNC Turning
CNC Turning is widely used to produce a variety of precision parts:
Shafts: Core machine axes/pivots requiring precise diameter and surface finish for mechanical fitting.
Flanges: Pipe/pump/valve connectors needing accurate machining to ensure secure, leak-proof joins.
Bushings & Sleeves: Smooth contact components with strict internal diameter and finish requirements for part movement.
Pins: Small but critical alignment/fastening parts requiring precise dimensions for snug fits.
Knobs & Dials: User interface elements where precise dimensions and aesthetics boost usability.
Wheels & Rollers: Conveyor system components needing consistent shape and smoothness to reduce friction and wear.
High Quality Parts
Experience unparalleled precision—our advanced milling ensures ±0.01mm tight tolerances, enabling seamless assembly and optimal performance.
Fast Lead Time
Accelerate your manufacturing cycle—RapidDirect’s domestic workshops and advanced machinery ensure fast turnaround to meet critical deadlines.
Engineering Support
Anytime, anywhere—confidently manage CNC milling projects with our experts’ step-by-step guidance to boost design and output quality.
Engineering Support
Our team is ready to help you get your production project started with help from our experts at every step of the process.
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Manufacturing on Demand
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