Custom Online CNC Machining Services

Online CNC machining services for rapid prototypes and production parts. Get instant CNC quotes today, and order your custom metal and plastic parts.

Our CNC Machining Services

If you need custom machined parts with complex geometries, or get end-use products in the shortest possible time, Machmaster is good enough to break through all of that and achieve your idea immediately. We operate over 50 sets of 3, 4, and 5-axis CNC machines, and offer 100+ different types of materials and surface finishes, guaranteeing quick turnaround and quality of one-off prototypes and production parts.

CNC Machining Tolerances and Standards

With precision CNC machining services, Machmaster is your ideal partner to create precision machined prototypes and parts. Our standard CNC machining tolerances for metals is ISO 2768-f and for plastics is ISO 2768-m.

StandardsCNC MillingCNC Turning
Maximum Part Size4000×1500×600 mm157.5×59.1×23.6 in.200×500 mm7.9×19.7 in.
Minimum Part Size4×4 mm0.1×0.1 in.2×2 mm0.079×0.079 in.
Minimum Feature SizeΦ 0.50 mmΦ 0.00197 in.Φ 0.50 mmΦ 0.00197 in.
Standard TolerancesMetals: ISO 2768-f
Plastics: ISO 2768-m
Metals: ISO 2768-f
Plastics: ISO 2768-m
Linear Dimension+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Hole Diameters
(Not Reamed)
+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Shaft Diameters+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Edge ConditionSharp corner will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing.
Threads and Tapped HolesDiameter: Φ 1.5-5 mm, depth: 3×diameterDiameter: Φ 5 mm or more, depth: 4-6×diameterDiameter: Φ 1.5-5 mm, depth: 3×diameterDiameter: Φ 5 mm or more, depth: 4-6×diameter
Machmaster can produce threads of any specification and size required by our customers.
TextMinimum width of 0.5 mm, depth of 0.1 mmRapidDirect can use CNC engraving or laser carving to create standard text based on customers’ requirements.RapidDirect can use laser marking to create standard text for CNC turned parts.
Lead Time5 business days5 business days

Materials for Custom CNC Machining Parts

A numebr of materials can be used in CNC machines, giving you various of options to complete rapid prototyping to production runs of custom complex parts. For your manufacturing needs, we provide instant quotatios of 100+ metals and plastics, and even you can compare prices for different machining materials.

CNC Turning Aluminum


Aluminum is a highly ductile metal, making it easy to machine. The material has a good strength-to-weight ratio and is available in many types for a range of applications.



Copper displays excellent thermal conductivity, electrical conductivity and plasticity. It is also highly ductile, corrosion resistant and can be easily welded.



Brass has desirable properties for a number of applications. It is low friction, has excellent electrical conductivity and has a golden (brass) appearance.

Type :Copper 260,Copper 360,

Stainless Steel parts

Stainless Steel

Stainless steel is the low carbon steel that offers many properties that are sought after for industrial applications. Stainless steel typically contains a minimum of 10% chromium by weight.

Type :303,304/304L,316/316L, 17-4 PH

Titanium parts


Titanium has a number of material properties that make it the ideal metal for demanding applications. These properties include excellent resistance to corrosion, chemicals and extreme temperatures. The metal also has an excellent strength-to-weight ratio.

Type :Gr1,GR2,GR5


Plastics are also very popular option for CNC machining because of its wide choices, relatively lower price, and significantly faster machining time needed. We provide all common plastics for CNC machining services.

type :POM(Delrin/Acetal),PEEK,HDPE,PET,Nylon(Polyamide),PTFE (Teflon),PVC,PP,ABS,PC,PMMA(Acrylic),ETC…

CNC Finishes



Anodizing is accomplished by immersing the aluminum into an acid electrolyte bath and passing an electric current through the medium. A cathode is mounted to the inside of the anodizing tank; the aluminum acts as an anode, so that oxygen ions are released from the electrolyte to combine with the aluminum atoms at the surface of the part being anodized. Anodizing is, therefore, a matter of highly controlled oxidation the enhancement of a naturally occurring phenomenon.

bead blasting

bead blasting

The bead blasting process uses a blasting media – beads – under high pressure. Propelling the beads at a surface cleans, polishes, or roughens the surface to the desired finish. These beads are shot out toward the component from a high-pressure bead-blaster. When the beads hit the surface, the impact creates a uniform “dimpling” on the surface. A bead blast finish can clean corroded metal, remove cosmetic defects like textures and contaminants, and prepare a part for paint and other coatings.

Powder Coating

powder coating

Powder Coating is a dry finishing process created by an electric charge that causes a dry powder to fuse to the surface of the metal. This is then baked in a curing oven to achieve a smooth coating. It is usually used to create a hard finish that is tougher than conventional paint.


Electroplating is basically the process of plating a metal onto the other by hydrolysis mostly to prevent corrosion of metal or for decorative purposes. The process uses an electric current to reduce dissolved metal cations to develop a lean coherent metal coating on the electrode. Electroplating is often applied in the electrical oxidation of anions on a solid substrate like the formation of silver chloride on silver wire to form silver chloride electrodes.


Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment, leaving a clean surface with a significant specular reflection (still limited by the index of refraction of the material according to the Fresnel equations).


Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes.

Contact Us

Xiamen Mach Cnc Machining Master Co., Ltd

202, Tianfeng Road, Xiamen, Fujian, China