CNC Machining Parts

cnc machining parts

Machining with Computer Numerical Control, to machining complex workpieces such as straight cylinders, oblique cylinders, arcs, various threads, grooves, and worms.

cnc milling parts

milling with Comfputer Numerical Control, with tools storage, it called CNC center.The cut surfaces are usually straight line, arc, and curved.

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Why Choose Sinster

Supper Good Quality

Sinster will choose the best raw material and the best technics & machines to produce

Fast Delivery

7 days for samples, 15 days for small batch order, 30 days for big order


One year warranty, within 7 days refundable without reasons, 0.1% per day as fine when delay

If you're curious about if your parts are ideal for CNC machining services, reach out to our team at once for more details with your email address.

Equipments for CNC machining Parts

CNC Turning Machine

ecm machining

CNC Milling Machine

flywheel machining

CNC Grinding Machine

steel grinder

CNC Drilling Machine

high speed steel drill

Technology for CNC Machining Parts

CNC Turning Service

CNC turning is turning with Computer Numerical Control, to machining complex workpieces such as straight cylinders, oblique cylinders, arcs, various threads, grooves, and worms. And CNC turning can compensate functions of linear interpolation and circular interpolation.

CNC Milling Service

CNC milling means milling with Comfputer Numerical Control, with tools storage, it called CNC center. The cut surfaces are usually straight line, arc, and curved. CNC milling is to divide the motion coordinates of the tools and the workpiece into the smallest unit amount, that is, the smallest displacement amount. With the requests of Computer Numerical Control, move each coordinate by several minimum displacements, so as to realize the relative movement of the blade and the workpiece to complete the processing of the part.

CNC Grinding Services

CNC milling means grind with Comfputer Numerical Control to use grinding tools to grind the surface of the workpiece. The surface is accuray with limited tolerance. Normally, the surface roughness is better than Ra 1.0. CNC grinding has four kinds, one is centerless grinding, one is flat surface grinding, one is internal grinding, and the other is cylindrical grinding.

CNC Drilling Services

Drilling with Comfputer Numerical Control to drilling, chamfering, reaming, and tapping, mainly drill and cut the holes.
After hole making, youo usually use tap to make hole thread.
Making the surface as raised to increase friction when touch.
One method to make the gear.
Electrical Discharge Machining, it is a common method for spare parts production. Leran EDM Wire Cutting

The material to be cut is irradiated with a high power density laser beam, so that the material is quickly heated to the vaporization temperature and evaporated to form holes. Complete the cutting of the material. Learn EDM Laser Cutting

Using laser to put the Logos, numbers or letters CNC machining part surface
Using oxygen, laser, or argon to put 2 seperate CNC machining parts in one part.
Using assembling line to put all CNC machining parts together in one product.


General Tolerance Standard DIN 7168/DIN 2768
Shaft Tolerance ISO286-1
Hole Tolerance ISO286-1
Ball Tolerance Standard DIN5401
Bearing Machining Tolerance Standard DIN5406
Bushing Tolerance Standard NDC
Thread Tolerance Standard GB/T 7307
CNC Machining Production Process Tolerance
CNC Machines, Laser Cutting Machines, 3-Axis Mill, 4-Axis Mill, Engraving, Surface Roughness (Finish), Flatness

Surface Finish

Standard (As-Machined) Bead Blasting Tumbled
Anodized (Type II Or Type III)
Titanium Anodize PTFE Impregnated Hard Anodize
Chem Film (Chromate Conversion Coating)
Chem Film (Chromate Conversion Coating)
Powder Coat
Electroless Nickel
Silver Plating
Gold Plating
Zinc Plating

Raw Material For CNC Machining Parts

A alloy contain nickel. Due to the characteristics of no rust, it is widely used in food and medical industries.
A lightweight alloy , when oxidized, will produce a rust-resistant film on the surface. And will increases the strength of aluminum after T6 heat treatment. Due to its light weight, rust resistance and high strength, it is widely used in the automotive and aviation industries. In particular, 7075 is called aviation aluminum.
It is composed of elements with copper and iron, the copper as the main element. Different models are distinguished according to the copper content. Brass has high strength and plasticity, which is convenient for turning. It can withstand hot and cold pressure well, and has good electrical and thermal conductivity. Commonly used in the manufacture of small hardware, daily necessities, small springs, screws, rivets, machine parts and bathroom industries.
Bronze is an alloy of pure copper with elements of tin and aluminum added. Bronze has high strength, good elasticity and wear resistance. Easy to weld and braze, good corrosion resistance in atmosphere, fresh water and sea water. Good turning performance, suitable for hot press machining. It is mainly used to manufacture parts with medium load and friction under medium sliding speed, such as anti-wear washers, bearings, bushings, worm gears and worms, etc.
Pure copper is an alloy composed entirely of copper and trace amounts of other elements. Pure copper has good electrical conductivity, thermal conductivity, corrosion resistance and processing properties. Can be welded and brazed. Contains less conductive and thermally conductive impurities. It can be used as electrical, thermal and corrosion-resistant equipment, such as wires, cables, conductive screws, detonators for blasting, chemical evaporators, storage containers, various pipes, etc.

Carbon steel is an iron-carbon alloy with a carbon content of 0.0218% to 2.11%. Also called carbon steel. Generally also contains a small amount of silicon, manganese, sulfur, phosphorus. The higher the carbon content in carbon steel, the greater the hardness and the higher the strength, but the lower the plasticity. Commonly used in the manufacture of small and medium-sized carburizing, carbonitriding and other parts that are less important in automobiles, tractors and general machinery manufacturing. Such as hand brake shoes, lever shafts, tie rods, flanges, pipes, fasteners on automobiles. Learn More Carbon Steel

Plastics are polymer compounds (macromolecules) that are polymerized from monomers as raw materials through polyaddition or polycondensation reactions. They have medium resistance to deformation and are intermediate between fibers and rubber. They are composed of synthetic resins and fillers, plasticizers, stabilizers Agents, lubricants, pigments and other additives. Mainly divided into ABS, Acrylic, Delrin(Acetal), HDPE, Nylon 6/6, PC (Polycarbonate), PEEK, Polypropylene, PTFE (Teflon), UHMW PE, PVC.
Titanium alloys refer to a variety of alloyed metals made of titanium and other metals. Titanium is an important structural metal developed in the 1950s. Titanium alloys have high strength, good corrosion resistance and high heat resistance. Mainly used for high temperature titanium alloys for aero-engines and structural titanium alloys for airframes.

Inspection For CNC Machining Parts

wide flange steel beam dimensions

Dimentions Report

service cnc

AQL Visual Inspection Report

Package for CNC Machining Parts

A single product is neatly placed in a carton, and then the carton is placed on a wooden pallet, and then the whole package is wrapped with pvc film, and packed with iron packing belts, two horizontal and vertical. In express and air transportation, the carton is packed with bubble film, and then packed with PVC packing tape, two horizontal and vertical.
custom cnc machining parts

Transit For CNC Machining Parts

Courier shipment: It is good for light weight and small volume parcel, special for samples.
Train shipment: It is good for heavy weight and big volume parcel, it is faster than sea shipment, but more expensive than sea shipment.
Air shipment: It is fast in heavy weight and big volume parcel shipment. But it is also most expensive.
Sea shipment: The most common and oldest shipping method. Suitable for bulky, heavy-weight cargo, cheap, but the slowest of all shipping methods.
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