Capabilities | Processes | Materials | Surface | Tolerances | Products | Why Choose JTR | FAQ

cnc machining parts

CNC Machining Service

CNC stands for Computerized Numerical Control. It is a computerized manufacturing process where pre-programmed software and code control the movement of production equipment. At JTR machine, we can provide quality custom CNC machining, CNC milling, CNC turning services, and related shop services to small, medium, and large-sized parts.

Equipped with leading-edge CNC machines, we have the capability to offer you a reliable One-Stop CNC machining service. Our CNC services offer rapid prototyping/end-use parts production in a wide range of materials, efficient for both time and cost. We have passed ISO9001:2008 and TS16949 quality system certificates which allow both rapid prototyping and high-volume production of end-use components.

Get A Quote

Our CNC Machining Capabilities

As one of the leading precision CNC machining services suppliers in China, JTR has strong capabilities to serve your needs of CNC machined parts, from rapid prototyping to precision parts and tooling machining, to end-use parts.


High work efficiency – produce high precision parts within 1 day

图片1 2

Various work techniques – CNC milling, CNC turning, metal casting, etc.

图片3 2

Low CNC Tolerance

图片2 3

We have passed ISO 9001:2008, and TS16949 quality system certification in 2015

图片3 1

The machined parts will be shipped to you in a short time

图片71 2

Rapid prototyping for various materials, several different types of molds are available

CNC Machining Processes

CNC Milling Service

CNC Milling uses 3-axis milling and 5-axis indexed milling to rapidly cut a choice of more than 30 engineering-grade thermoplastics and metals into complex shapes and precision components.

As one of the subtractive manufacturing processes, milling removes material from bulk by using tools to cut/drill a workpiece. CNC Milling is capable of producing parts with high accuracy at a high speed.

CNC Turning Service

CNC Turning uses a lathe to create detailed functional prototypes and end-use parts with cylindrical features. It removes material from bulk by rotating the workpiece.

CNC Turning is great for the processing of cylindrical parts, capable of producing high-quality parts cost-effectively.

  • CNC Drilling: The cutting process in which the workpiece is fixed so that the center of the tool is aligned with the center of the hole and rotated to produce a circular hole can be done on lathes and milling machines.
  • CNC Milling and Turning: A composite machining technique that the production of complex curved or profiled parts through the design of multiple tasks through the collaboration of simultaneous rotation of the tool and the workpiece.
  • CNC Cutting: CNC cutting is a variety of different cutting techniques are used in combination with CNC software to remove excess material from blocks and create specific 2D or 3D shapes.

Our CNC Machining Center


Our CNC machining center has more than 70 advanced equipment, which is equipped with three-axis, four-axis, and five-axis CNC machines, able to manufacture parts that meet most requirements from customers. In addition to CNC machining centers, there are also advanced full-automatic die casting machines from 500T to 1000T with an annual capacity of million pieces of parts.

Materials for CNC Machining Parts

Parts manufactured using CNC

Al6061 / Al6063 / Al6082 / Al7075 / Al5052 / A380, etc.

Mild steel/Carbon steel / 4140 / 4340 / Q235 / Q345B / 20# / 45#, etc.

SS201 / SS301 / SS303 / SS304 / SS316 / SS416, etc.

Brass HPb63 / HPb62 / HPb61 / HPb59 / H59 / H68 / H80 / H90, etc.

C11000 / C12000 / C12000 / C36000, etc

PET / PVC / ABS / PC / PE / PTFE / POM / PMMA / Nylon / PP / Peek, etc.

PET / PVC / ABS / PC / PE / PTFE / POM / PMMA / Nylon / PP / Peek, etc.

Inconel, Invar, Magnesium, etc.

Surface Finishes for CNC Machining

As MachinedCutter marks from the CNC Machining process will be present.
320 PaperLight sandpaper will remove the cutter marks left over from the CNC machining process but will leave behind a uniform scratch pattern from the sandpaper.
400 PaperA smoother alternative to 320 Paper
Light Bead BlastThis will remove light cutter marks and light sandpaper scratches, leaving behind a smooth uniform sheen.
Heavy Bead BlastThis will remove heavier cutter marks and scratches left behind by sandpaper and will have a light texture appearance.
Smooth FinishThis is typically 600 grit paper and can be polished.
Optical Smooth Finish1500 grit paper used before polishing.
AnodizingCorrosion Prevention and aesthetics
Chrome PlatingMirror-like hard Finish

Tolerances for CNC Machining

Process Tolerance(mm)
CNC Milling ± 0.005(metal) / ±0.010(plastic)
CNC Turning ± 0.005(metal) / ±0.010(plastic)
CNC Lathe ± 0.005(metal) / ±0.010(plastic)
Engraving ± 0.005(metal) / ±0.010(plastic)
The Best Surface Finishing RA0.4

We have specified our standard dimensional tolerance of ±0.005mm(0.0001in) for CNC manufactured parts. While there’s no certainty to achieve an exact even tolerance on our lathes, routers, axis mills and 5-axis mills. If you are in need of a specific tolerance, please notify us, we will make a perfect plan for you.

Thinner sheet metal in the process of CNC machining might need CNC jigs being used, if that would happen, our engineering and designing team will confer with you to provide you with the best plan.

Size Limitation for CNC Machining

  CNC Milling CNC Turning
Max Diameter 3500mm (138in) 2500mm (99in)
Min Diameter 0.1mm (0.003in) 0.1mm (0.003in)

CNC machines are able to manufacture products of a huge variety of complications and sizes. Yet, limitations also do exist in the machining, there are some limitations caused by the size, so we specified a size limitation table of CNC machining for you to refer to. It is necessary for both designers and engineers to know these limitations in order to design. So please read the table before contacting us.

The larger part can be reviewed and specially processed, get a quote for us to see!

Lowest CNC Service Price

Factors made our price lower than anyone others in the net

  JTR CNC Others
CNC rate The numerical control rate is estimated to be 60% The numerical control rate is estimated to be about 15-20%
CNC equipment 70 latest CNC Machining Centres, and advanced full-automatic die casting machines from 500T to 1000T with an annual capacity of million pieces of parts. All these factors save much cost from elaboration Less equipment and most are half-automatic CNC machines
Work Team A professional team with a decade of CNC experience, we make the work more efficient to save much time and financial cost. Teams with less experience, that’s why projects usually last in a long term.

If you are looking for a low CNC service price, please do not hesitate to get a quote!

Get A Quote

CNC Machining Products

1531107266261 582.jpg4
1531187791125 890.jpg4
1531127739460 201.jpg4
1531127419806 505.jpg4
1531187234364 582.jpg4
1531187551267 447.jpg4

Why Choose JTR for CNC Machining?

10+ Years Experience in CNC Machining

▼ 100%QC Quality Inspection Before Delivery

▼ Factory Price Excellent Quality

▼ No MOQ High Precision Short Delivery

▼ 24 hours Online Service Fast Quote/ After service

图片3 3
Custom Design

We machine your parts as designed, we also offer perfect modification suggestions to optimize the production process and reduce costs. You can select from a variety of finishes on solid metal and plastic parts, built to precise design specifications

图片2 3
High Efficiency

With experienced technicians and strict management in QC, we ensure you our work efficiency and production quality. JTR produces highly accurate, quick turn parts in as fast as 1 day. We are looking for your request for our 24 hours-service.

Precision Seledt 2
Low Tolerance

Our general tolerance standard for CNC machining parts is DIN-2768-1-fine & DIN-2768-1-medium. Tolerances are greatly affected by part geometry. Our engineers will consult with you on each part of your project and provide the highest degree of precision possible.

图片5 1
Wide Materials Selection

Choose from over 50 metal and plastic materials. CNC Machining offers a wide variety of certified materials.

Diversified Machining

Small and large quantities, perfect for the production of 1-10,000 parts; Metals and plastics; Simple machined parts, and complex CNC machined parts.

good surface
Global Services

Our parts have been exported to Europe, the USA, Australia, South America, the Middle East, Southeast Asia, etc.

With a professional team from sales to skilled engineers, JTR Machine provides the best CNC machining solution at a competitive price. we value customer relations first, aiming for long-term cooperation. We hope to work with innovative companies and business partners in the future and reach a win-win situation.

Our Partners

Overview of CNC Machining

What’s CNC machining?

CNC (Computer Numerical Control) machining is a manufacturing technique that uses high-precision machine tools to remove material. It uses a variety of sharp cutting tools, through the computer to precisely control various shapes and sizes to achieve the final design. It can be used to manufacture various precision production parts. Common CNC machine tools include vertical milling machines, horizontal milling machines, lathes, and router planers

How does CNC machining work?

Initially, our engineers created programming instructions on the computer-based CAD drawing model provided by the customer. When the tool path required by the part is determined, the computer will send the command to the CNC machine tool in the form of “G code”. After the machine tool receives the code, it will move and quickly rotate the cutting tool according to the instruction so that it can cut at the correct position until the part is completed.

Why choose CNC machining?

There are many benefits of CNC machining, it is a fast, accurate and universal machining solution. Once the instructions are created and the machine tool is programmed, any number of parts can be manufactured. It is designed for precision manufacturing and reusable use, with cost-effective and high scalability. Besides, CNC machining can also use a wide range of materials, including aluminum, copper, titanium, plastics, etc. This is why CNC machining is so popular.

What materials can be used with CNC machining?

There is a wide range of materials that can be used in CNC machining, including metal materials such as aluminum, copper, stainless steel, titanium, and we also can machining hard plastics materials. If you still have questions, you can contact us for more detailed information about machinable materials.

What’s the cost of your CNC machining parts?

The costs associated with CNC machining mainly include materials, machining time, quantity, and machining difficulty. In order to further determine the cost you need, you can provide us with your CAD drawings, and we will send you a manufacturing analysis and quotation within a few hours.

Applications of CNC Machining

2020 0205 418f0003j00q57f4j0010d200dw0099g00dw0099

CNC Machining for Automotive

CNC machining is commonly used in the automotive industry, it’s been used to create one-off custom parts. And the CNC is no quantity limitation to automotive parts because the turnaround time is so fast. Because the CNC process uses CAD/CAM software to upload detailed project specifications to an automatic-driven machine, there is little manual labor required to manufacture high-quality parts.


CNC Machining for Semiconductor

The semiconductor industry is actually developed upon electronic information, rigid precision is strict to semiconductor equipment. While CNC machining service can be the replacement, to work on wide various materials, such as silicon, sapphire, nitride alumina, aluminum, etc. It is common that semiconductor CNC machining parts can be seen in different electronic components and integrated circuits.


CNC Machining for Aerospace

CNC machining technique has a long-time history in the aerospace. The aircraft components need to be at the highest level of precision. This is so strict with safety-critical application requirements. While JTR MACHINE can make the perfect part for aircraft components. What’s more, our compatible material options for CNC engineering are in a wide range.

1155116466569303 b

CNC Machining for Agriculture

most agricultural parts are huge and complicated, all of them are used on the agricultural equipment ought to be carefully worked with high demands of technical specifications including ultra-high-precision specifications, and lighten durable materials to last the machine’s service life. So customized CNC machining plays a crucially important role in the agriculture industry. What’s the most important reason is that the custom CNC agriculture parts make your equipment more competitive in the market.


CNC Machining for Food

CNC machining is getting more and more attention in the food industry, this is growing with the development of the industry. The food industry nowadays needs the highest quality components and equipment. Operating standards in the food industry have changed dramatically over the past few decades due to more regulations on food contaminants, pathogens, and allergens. We have developed current Good Manufacturing Practice (CGMP) to review and update these food safety regulations.


CNC Machining for High-tech

The new and high-tech industry is a collection of enterprises engaged in the research, development, production, and technique service of one or more technologies and high-tech products. With higher economic and social benefits, the high-tech industry developed rapidly in recent years even though it’s not easy. Precision online CNC machining services for the high-tech industry are keeping up with the trend, providing multiple processing to manufacture and handle various high-tech CNC machined parts.

CNC Machining for Machine Tool

The increasing demand for advanced equipment in various industries represents a great opportunity for the machine tool industry. The machine tool industry is the manufacturing industry that provides processing equipment, is the foundation and core department of the equipment manufacturing industry. Machine tools are also the basic production equipment of the machinery industry.


CNC Machining for Marine

For the shipbuilding industry, the need for innovative devices will certainly boost day by day, which is undoubtedly a good chance for CNC machining services. Since most ship components can be completed by CNC Machining. In the shipbuilding industry, there is a great demand for high-quality precision components. In order to satisfy the requirements of the shipbuilding industry for devices levels, the parts of ship devices should be generated with stringent layout, strict resistances, ultra-high accuracy as well as the most appropriate products.


CNC Machining for Medical

The reason why CNC Machining can be used in the medical field is that it can meet the strict requirements for the quality and consistency of medical devices. Complicated surfaces and geometric shapes are not a problem, and the final product strictly complies with the safety and precision requirements of the medical industry.

Medical machinery is complex, the parts required are brand new, and there is no room for fault tolerance. The parts must be durable, high-quality, and have a smooth surface. 

u 2376537298 2042898238 fm 253 fmt auto app 138 f JPEG

CNC Machining for Military

As an experienced rapid custom CNC machining parts manufacturer and exporter in China, we are a reliable partner to military clients, providing enhanced quality CNC military parts, components, assemblies, and military CNC machining China services with trusted delivery, high-level precision, accurate dimensions, detailed specifications, and intra-budget machining cost.


A: Please send 2D or 3D drawings with product data and parameters, including the material, dimensions, tolerance, surface treatment, and other requirements, then we will quote the best prices within 24h.

A: 2D&3D both available.

A: It depends on the part‘s dimension, technical requirements, and quantity. We always try our best to meet your requirement.

We have no MOQ. We accept orders in low quantity.

A: T/T, PAYPAL, etc.

A: Yes, we can sign an NDA before you send the drawing.