Precision CNC Turning Manufacturing

Custom CNC Turning Services

Get high-quality custom CNC turned parts with tolerances as tight as ±0.005 mm and lead times as fast as 1 day. From prototypes to volume production, BatchMach Precision delivers reliable machining, consistent quality, and fast turnaround.

No minimum order quantity
Tolerances down to ±0.005 mm for qualified features
Direct factory pricing
Lead times confirmed after drawing and quantity review

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19+

Years of Experience

250+

Machines & Testing Equipment

11,000 m²

Manufacturing Area

200+

Skilled Staff

ISO

9001 / 13485 / AS9100D

Trusted by
numerous companies

BatchMach Precision CNC Turning Capabilities for Custom Turned Parts

BatchMach Precision provides precision CNC turning services for custom CNC turned parts, from conventional cylindrical components to complex parts requiring combined turning and milling. Our CNC lathe machining capabilities support prototypes, low-volume orders, and repeat production across a wide range of metals and engineering plastics.

Standard CNC Turning

Standard CNC turning is suitable for parts with rotational geometry, including outside diameters, bores, threads, grooves, tapers, and concentric features. BatchMach Precision uses Takisawa and Longze CNC lathes to machine metal and engineering plastic prototypes, replacement components, and production parts.

Typical Parts: Shafts, bushings, sleeves, pins, flanges, spacers, collars, threaded components, and other custom CNC turned parts.
Maximum Part Size: Maximum diameter: Ø500 mm; Maximum length: 1,000 mm
Primary Equipment: Takisawa and Longze CNC lathes.

Multi-Axis CNC Turning

Multi-axis CNC turning combines conventional turning with live-tool milling, drilling, tapping, slotting, and C-axis positioning. It is suitable for complex turned parts with flats, slots, cross holes, radial holes, and other off-center features, allowing turned and milled features to be completed in fewer setups.

Typical Parts: Precision shafts, valve components, connectors, couplings, fittings, and other multi-feature CNC turned parts.
Maximum Part Size: Maximum diameter: Ø340 mm; Maximum length: 1,082 mm
Primary Equipment: Mazak QT-COMPACT 200MY L CNC turning center.

Mill-Turn Machining

Mill-turn machining combines CNC turning, milling, drilling, tapping, B-axis machining, and main- and sub-spindle operations. It is suitable for complex parts with turned profiles, milled faces, angled holes, contours, and multi-sided features, reducing re-clamping and accumulated positioning errors.

Typical Parts: Aerospace components, medical device parts, robotic components, transmission parts, and other complex precision components.
Maximum Part Size: Maximum diameter: Ø650 mm; Maximum length: 1,000 mm
Primary Equipment: Mazak INTEGREX i-200S mill-turn center.

CNC Swiss-Type Turning

CNC Swiss-type turning is suitable for miniature and slender components requiring controlled diameters, concentricity, and consistent production. The guide bushing supports the workpiece close to the cutting area, helping reduce deflection during small-diameter machining.

Typical Parts: Miniature shafts, precision pins, bushings, sleeves, connectors, fasteners, and other small-diameter turned parts.
Machining Capacity: Part diameters below Ø1 mm, subject to drawing and material review; Maximum machining length: 20 mm
Primary Equipment: Citizen Cincom R01VI CNC Swiss-type lathe.

Custom Lathe Parts We Manufacture

5,000 Urgent-Production Parts Delivered on Schedule

The customer needed 5,000 knurled sleeves within 20 working days, with the critical bore held to ±0.01 mm and concentricity within 0.02 mm.

BatchMach Precision optimized the knurling and finish-machining sequence, introduced dedicated soft jaws, and standardized key machining parameters. All 5,000 parts were delivered on schedule, reducing manufacturing costs by 12% while maintaining consistent fit across the production batch.

20-Working-Day Delivery±0.01 mm Bore Tolerance12% Lower Manufacturing Costs

Stable Production of 10,000 Stainless Steel Hose Fittings

The customer required 10,000 hose fittings within 30 working days. Each part combined an external thread, sealing cone, internal bore, wrench flats, and multiple hose barbs. The main challenge was maintaining consistent thread fit and sealing-face runout across the full batch.

BatchMach Precision used a Mazak INTEGREX i-200S mill-turn center to complete turning, threading, and hex milling in one setup, reducing positioning errors between operations. Sealing-face runout was held within 0.05 mm, while external threads were batch-inspected using GO/NO-GO gauges.

By reducing secondary setups and optimizing toolpaths, we shortened cycle time by 13%, delivered all 10,000 parts on schedule, and lowered the unit manufacturing cost by 9%.

10,000 Parts30-Working-Day Delivery9% Lower Unit Cost

Materials for CNC Turned Parts

BatchMach Precision is a CNC turned parts manufacturer machining a wide range of metals and engineering plastics for custom components. Material selection is based on machinability, strength, corrosion resistance, dimensional stability, surface-finish requirements, and the part’s operating conditions.

Before production, our engineers review the material grade, geometry, tolerances, threaded features, wall thickness, and production volume to determine the appropriate machining approach.

BatchMach Precision machines common metals and alloys for custom CNC turned parts. Material selection should consider not only strength and corrosion resistance, but also bar-stock availability, supplied condition, machining behavior, finishing requirements, and regulatory restrictions.

Steel

Steel offers strength, toughness, and wear resistance, with mechanical properties that can be modified through heat treatment. Steel turned parts are widely used in automotive systems, industrial machinery, energy equipment, power transmission, and general engineering.

Common Grades:

1018104512154140

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Surface Finishes for CNC Turned Parts

BatchMach Precision offers surface-finishing options for components produced through standard, precision, and large-part CNC turning, improving the corrosion resistance, wear performance, friction characteristics, appearance, or electrical properties of CNC turned parts.

As Machined

Parts receive no additional coating after turning and retain consistent machining marks. This option adds no coating thickness and is suitable when dimensional control, cost, and lead time are the main priorities.

Anodizing

Anodizing forms a protective oxide layer on aluminum through an electrochemical process. It improves corrosion and wear resistance and is available in different colors. Precision bores, threads, mating surfaces, and electrical contact areas can be masked when required.

Bead Blasting

Bead blasting directs fine media against the part to reduce visible machining marks and create a uniform, low-reflective matte texture. It can serve as a final cosmetic finish or prepare the surface for anodizing or another coating.

Black Oxide

Black oxide creates a thin, dark conversion layer on steel with minimal dimensional change. When combined with oil or another sealant, it improves appearance and provides basic rust protection.

DLC Coating

DLC coating deposits a hard, low-friction film on the part surface. It helps reduce friction, adhesion, and wear on shafts, pins, valve components, and other parts exposed to sliding or repeated contact.

Electropolishing

Electropolishing removes a controlled amount of surface material through an electrochemical process, smoothing microscopic peaks. It produces a cleaner, smoother surface and can improve the corrosion resistance of stainless steel parts.

Heat Treatment

Heat treatment uses controlled heating and cooling to modify the internal structure of a metal, adjusting its hardness, strength, toughness, or wear resistance. Specify the target hardness or applicable standard, and BatchMach Precision will plan the machining and treatment sequence.

Nickel Plating

Nickel plating deposits a nickel layer that can improve corrosion resistance, wear resistance, surface hardness, and appearance. Electrolytic or electroless nickel can be selected according to the part geometry, coating uniformity, and application requirements.

Powder Coating

Powder coating applies electrically charged powder to a metal surface and cures it into a continuous protective layer. It provides corrosion protection and a choice of colors for exposed components.

PVD Coating

PVD deposits a thin functional film in a vacuum environment to improve hardness, wear resistance, friction performance, or appearance. Its relatively low thickness makes it suitable for precision parts sensitive to dimensional change, subject to fit review.

Zinc Plating

Zinc plating forms a sacrificial protective layer on steel, allowing the zinc to corrode before the base material. It is an economical option for fasteners, fittings, brackets, and general industrial components.

Gold Plating

Gold plating creates a stable conductive surface with good corrosion resistance and electrical contact performance. It is commonly used for terminals, contacts, connectors, and other components requiring reliable signal transmission.

CNC Turning Service Capabilities and Tolerances

Our precision CNC turning services support small precision turned parts, shafts, bushings, sleeves, pins, and other custom cylindrical components. With advanced machining equipment, controlled production processes, and calibrated inspection systems, we can achieve dimensional tolerances down to ±0.005 mm on critical features. We manufacture precision turned components for prototypes and repeat production where dimensional consistency and reliable quality are essential. The table below shows our achievable CNC turning tolerances and supported part size ranges.

Specification	Capability
Maximum Part Size	We support CNC turned and turn-milled parts up to Ø658 mm in diameter and 1,011 mm in length, based on the machining capacity of our Mazak INTEGREX i-200S.
Minimum Part Size	Precision turned components can be produced from approximately Ø1 mm in diameter, depending on the material, part geometry, feature size, and workholding requirements.
General Tolerances	Standard dimensional tolerances can reach ±0.01 mm, while critical features can be controlled to tolerances as tight as ±0.005 mm.
Quality Documentation	CMM inspection reports, first article inspection reports, material certificates, RoHS, REACH, and other project-specific quality documents can be provided when required.
Production Volume	We support prototypes, low-volume production, and repeat batch manufacturing, with no mandatory minimum order quantity.

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CNC Turning Design Guidelines: Improve Manufacturability and Reduce Machining Costs

Following the design guidelines below can improve the manufacturability of CNC turned parts, reduce unnecessary setups and machining operations, and simplify inspection.

Design Item	Recommended Value	Purchasing Consideration
General tolerances	±0.10 mm for noncritical dimensions	Avoid applying tight tolerances across the entire drawing
Critical tolerances	±0.05 mm; down to ±0.005 mm	±0.005 mm is limited to qualified features after drawing review
Minimum wall thickness	Metals: ≥1.0 mm; plastics: ≥1.5 mm	Thinner walls are more susceptible to cutting and clamping deformation
Unsupported length-to-diameter ratio	Prefer L/D ≤4:1	Higher ratios may require tailstock, sub-spindle, or Swiss-type support
Hole diameter and depth	Axial holes: ≥Ø1 mm; depth: ≤6D	Small, deep holes increase drill drift and chip-evacuation risks
Grooves and internal radii	Groove width: ≥1.2 mm; internal radius: ≥R0.5 mm	Deep, narrow grooves and sharp corners may require special tooling
Threads	Prefer standard metric threads ≥M2 or standard UNC/UNF threads	Leave 1–2 thread pitches beyond the required full thread in blind holes
Surface roughness	General surfaces: Ra 3.2 μm; functional surfaces: Ra 1.6 μm	Ra 0.8 μm or finer requires an individual process review

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Quality Control for Custom Turned Parts

BatchMach Precision controls custom turned parts from incoming material verification through machining and final inspection.

Material and First-Article Verification

We confirm the specified material and inspect the first completed part before continuing production. Material certificates and first-article reports can be provided when requested.

In-Process Dimensional Control

Critical diameters, bores, threads, runout, and concentric features are checked during machining to identify tool wear and dimensional drift.

Final Inspection and Documentation

ZEISS CONTURA and Hexagon CMMs, TESA height gauges, vision measuring systems, and Mitutoyo instruments are used according to feature and tolerance requirements. CMM and final inspection reports can be provided with the order.

Why Choose BatchMach Precision for CNC Turning Services?

BatchMach Precision combines flexible order quantities, reliable lead-time planning, multiple CNC turning processes, and free DFM reviews to support your project from prototype through repeat production.

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Flexible Order Quantities

With no minimum order quantity, we support one-off prototypes, low-volume trial runs, and repeat production orders. Buyers can validate part fit and function with a small initial order before increasing production quantities.

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Multiple CNC Turning Processes

BatchMach Precision provides standard CNC turning, multi-axis turning, Swiss-type machining, and mill-turn machining. We select the process according to the part size, rotational geometry, off-center holes, grooves, and milled features to reduce unnecessary setups and machining steps.

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Free DFM Review

Submit your 3D model and 2D drawing for a free design-for-manufacturability review. Our engineers check material selection, tool access, wall thickness, tolerances, workholding, and surface-finishing requirements, then identify issues that may affect cost, lead time, or part quality before production.

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CNC Turning FAQ

CNC turning is well suited to parts built around a central axis, such as shafts, bushings, sleeves, spacers, pins, and threaded connectors. It can produce stepped diameters, bores, grooves, tapers, and threads. BatchMach Precision reviews the complete part geometry to determine whether CNC turning or mill-turn machining is the better fit.

Yes. BatchMach Precision combines turning, milling, drilling, and tapping to produce parts with non-rotational features. Our equipment includes a Mazak INTEGREX i-200S mill-turn machining center, along with Mazak and Takisawa CNC lathes. Where part geometry and tool access allow, combining operations reduces transfers between machines and helps maintain positional accuracy between turned surfaces and milled features.

BatchMach Precision can achieve CNC turning tolerances of ±0.005 mm.

We select inspection methods based on the feature being measured and its specified tolerance. Our inspection equipment includes ZEISS CONTURA and Hexagon CMMs, TESA height gauges, vision measuring systems, and Mitutoyo precision measuring instruments. When requesting a quote, please identify critical dimensions, sampling or 100% inspection requirements, and any required reports so we can agree on the inspection scope and acceptance criteria before production.

Yes. BatchMach Precision offers CNC turning for prototypes and small production runs.

The main factors include material grade, stock dimensions, machining time, order quantity, tolerances, surface finishes, and inspection requirements. Deep bores, slender geometries, and additional milled features can increase machining time.

Yes. BatchMach Precision is a precision manufacturing company based in China, primarily serving B2B customers in the United States and other international markets. Our capabilities include CNC turning, mill-turn machining, and 3-, 4-, and 5-axis machining. For overseas inquiries, please include the delivery location and required arrival date so we can account for machining, inspection, and shipping when preparing your quote.

Please provide a 3D model and dimensioned 2D drawings, along with the material grade, quantity, surface finish, and delivery location. Drawings should clearly specify critical fits, geometric tolerances, thread specifications, and inspection and documentation requirements. Please also include your required lead time and expected repeat order quantities to help BatchMach Precision assess the machining approach, pricing, and production schedule.

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