CNC Turning Services

CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer surfaces, and cylindrical and conical threads, etc., and can perform grooving, drilling, reaming and reaming. Holes and borings, etc

Precision CNC Milling Services – China Top CNC Milling

Our experienced operators proficient in CAD (computer-aided design) and CAM (computer-aided manufacturing) programs are always finding the best way to produce the highest quality CNC milled parts & components for clients. With strong capabilities and extensive experiences, we can provide top-grade but cost-effective custom CNC milling services from China including 3-axis CNC millin

What is CNC Turning & How Does CNC Milling Work

CNC milling (computer numerical control milling) is a CNC machining process that involves removing material from the workpiece by rotating and moving a cutting tool, such as a milling cutter, and positioning the workpiece properly, to produce or finish a custom CNC machining object. CNC milling technique can be used to shape a part from beginning to finish, it’s best to produce features or definitions as a secondary or finishing process for machined components. The milling cutting tool can be placed horizontally or vertically, but since the numerically controlled milling machines have evolved strongly, moving on several axis, up to 5 axis, allowing much more to movement of the cutting item in addition to the repositioning of the piece.

CNC turning service capabilities

From prototyping to full production runs. Our wide range of CNC lathes and turning centers will allow you to produce highly accurate, high quality parts to meet even your most stringent requirements.

Maximum capabilities for CNC turning

Part size limitations	Metric units	Imperial units
Maximum part diameter	431 mm	17 in
Maximum part length	990 mm	17 in
Maximum swing over the carriage	990 mm	17 in
Maximum spindle through-hole	990 mm	17 in

Available materials for CNC machining

CNC Metals

Aluminum	Stainless steel	Mild, Alloy & Tool steel	Other metal
6061-T6	303	Mild steel 1018	Brass C360
7075-T6	316L	Mild steel 1045	Copper C110
5083	2205 Duplex	Alloy steel 1215	Titanium Grade 1
5052	17-4	Mild steel A36	Titanium Grade 2
	15-5

CNC Plastics

Plastics	Reinforced Plastic
ABS	Garolite G-10
Polypropylene	Polypropylene (PP) 30%GF
Nylon 6	Nylon 30%GF
Delrin (POM-H)	FR-4
Acetal (POM-C)	PMMA (Acrylic)
PVC	PEEK
HDPE
UHMWPE
Polycarbonate
PET

Finishing Options for CNC Turning


Alodine	Aluminum	Clear, gold	Media Blasting, Tumbling, Type II Anodizing* Type III Anodizing, Type III Anodizing with PTFE
Anodizing	Aluminum	Clear, black, grey, red, blue, gold	Media Blasting, Tumbling, Alodine*
Black Oxide	Steel, Stainless Steel	Black	Media Blasting, Tumbling, Passivation
Electroless Nickel Plating	Aluminum, Steel, Stainless Steel		Media Blasting, Tumbling
Electropolishing	Steel, Stainless Steel
Media Blasting	Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper		All post processes except Electropolish and Powdercoat
Nickel Plating	Aluminum, Steel, Stainless Steel		Media Blasting, Tumbling
Passivation	Steel, Stainless Steel		Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting
Powder Coating	Aluminum, Steel, Stainless Steel	Black (20% or 90% gloss), white (20% or 90% gloss)
Tumbling	Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper		All post processes except Electropolish and Powdercoat
Zinc Plating	Steel, Stainless Steel	Clear: light blue coating, black: glossy black coating	Media Blasting, Tumbling, Passivation

Tolerances

Limits for nominal size	Plastics (ISO 2768- m)	Metals (ISO 2768- f)
0.5mm* to 3mm	±0.1mm	±0.05mm
Over 3mm to 6mm	±0.1mm	±0.05mm
Over 6mm to 30mm	±0.2mm	±0.1mm
Over 30mm to 120mm	±0.3mm	±0.15mm
Over 120mm to 400mm	±0.5mm	±0.2mm


Over 2000mm to 4000mm	±2mm

CNC Machining Tolerance

Machine Maximum Dimensions

FAQ

CNC, or computer numerical control machining, is a subtractive manufacturing method that leverages a combination of computerized controls and machine tools to remove layers from a solid block of material. The desired cuts in the metal are programmed according to corresponding tools and machinery, which perform the machining task in an automated fashion.

CNC machining starts with a computer, on which designers prepare a part using CAD (Computer-aided Design) software. This digital part is then converted into a format that can be recognized by a CNC machine.

Instructions are sent to the CNC machine in the form of “G-Code” after which the machine can start cutting.

Most CNC machines have a “worktable” and work holding device to keep a block of material — known as the “workpiece” — in place. The worktable may or may not move, depending on the style of the machine.

When machining starts, the cutting tool makes contact with the workpiece, cutting away layers of material. The tool and/or workpiece is moved and/or rapidly rotated according to the G-Code instructions so that cuts are made in exactly the right places until the part is finished.