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CNC Turning is a machining process primarily used to manufacture cylindrical parts like china cnc turned components, which is a highly precise and demanding subtractive machining process for precision cnc turning suppliers. It involves placing the cutting tool against a turning workpiece to remove materials and give the desired shape, a technique mastered by professional China CNC turning parts suppliers to ensure exceptional precision. Pieces of material (a piece of relatively rigid material, such as metal and plastic) are held in a chuck as a machine tool is fed to the piece to cut away excess material to produce the desired shape with precise diameters and depths. LJZ CNC, a leading china cnc turned components suppliers, is a professional cnc turning parts supplier dedicated to providing premium turning services China, and we can provide you with relevant high-precision machining services for China CNC turned components backed by the expertise of a specialized China CNC precision turning parts factory. As a reliable turned parts manufacturer china, we combine advanced equipment with skilled engineering to deliver precision components for diverse industrial applications.
At cnc turning supplier LJZ CNC, we have invested in state-of-the-art mill and turn equipment to improve efficiency and ensure the accuracy of complex turned parts. As the picture shows, you can see our large and professional cnc precision turning factory. In addition, combined with our advanced programming and engineering technology, the turning time of turned parts can be accurate to every second— a technical advantage that sets leading china cnc turning parts suppliers apart.
As an excellent Swiss turning component supplier, LJZ CNC utilizes CNC Swiss turning machines are from Japan Star, which can maintain the consistency of accuracy and efficiency in 24-hours-working a year. Our monthly average Swiss CNC turning production capability is 1,000,000 pieces, which proves that we are a truly excellent cnc turning machining parts supplier. This production scale reinforces our position as a trusted turned parts manufacturer china capable of meeting high-volume demands with consistent quality.
Discover our precision CNC turning/lathing/machining service for sale at LJZ, a reliable precision CNC turning manufacturer in China and a leading china cnc turned components suppliers. The material of our CNC precision turned parts/components/products can be aluminum/stainless steel/brass/copper/titanium, and other metals. LJZ cnc precision turning supplier offers a wide selection for you. To choose the best cnc turned part supplier, email us now!
Our experienced and professional programming team and operators have been proficient in various operations of precision turning, which include:
| Boring | Drilling |
| Knurling | Reaming |
| Grooving | Threading |
| Hard Turning | Tapered Turning |
With large cutting depth and fast workpiece speed, the efficiency of CNC machining turning is usually several times that of grinding. And the auxiliary time of precision CNC turning by LJZ CNC factory is short. In the same productivity, a turning machine has the benefits of low equipment and auxiliary system cost. Besides, precision CNC turning service by LJZ, a professional CNC turning company and a leading china cnc turned components suppliers, ensures overall machining accuracy and is a rather flexible processing method.
One-off rapid prototype part can be created as fast as in one day
Long-term run high volume CNC turning production
ISO 9001 Certified
PPAP and FMEA for automotive clients
Automatic machinery, experienced engineers, and 100% QC assurance
Turning and milling are two typical cutting processes in CNC machining. So, what's the difference between them?
Turning is how rotating materials contact tools and process the material.
Milling is a way to process fixed materials by rotating tools.
Turning is good at processing round parts: because lathe processing is carried out by rotating materials, the produced parts are usually be cylindrical, conical or spherical. LJZ's lathe is not only good at processing round, but also can process the outer diameter and tapping inner diameter.
Milling is good at machining complex parts: the components of the milling machine include the spindle for installing and rotating the tool, and the workbench for clamping (fixing) materials. Due to the milling machine cutting materials by linearly moving the worktable while striking the rotating tool, the processed parts can usually combine high precision and complexity. LJZ's milling engineers are good at plane and groove cutting. They can perfectly realize 1:1 mechanical engineering project parts easily.
According to different purposes, turning tools can be classified as follows:
1. Internal and external turning tools for external turning, internal hole turning, and end face turning;
2. Grooves and cutting tools used for grooving the outer circle, inner hole, and end face;
3. Internal and external thread turning tools for turning external and internal threads;
4. Make the cutting edge into a profiling tool similar to the shape of the workpiece.
CNC turning can typically hold tolerances around ±0.01 mm for many precision components, while tighter tolerances may be possible depending on part size, material, geometry, and machine capability. Critical features such as diameters, concentricity, runout, and thread dimensions should be clearly defined on the drawing so the machining and inspection plan can be evaluated before production.
CNC turning is best suited to parts with rotational or cylindrical features, such as shafts, bushings, pins, sleeves, spacers, threaded components, and precision fittings. It is especially efficient when most critical features are located around a central axis. Parts requiring additional holes, slots, flats, or milled features can often be completed with secondary CNC machining operations.
CNC turned parts can be produced from a wide range of metals and engineering plastics. Common materials include aluminum, stainless steel, carbon steel, brass, copper, titanium, POM, nylon, and other machinable plastics. The best material depends on required strength, corrosion resistance, weight, wear performance, machinability, and the final operating environment.
Conventional CNC turning is widely used for general cylindrical parts, while Swiss machining is particularly suitable for small-diameter, long, slender, or highly detailed components. Swiss machines support the workpiece close to the cutting area, which can improve stability during machining. For high-volume precision parts, Swiss machining may also reduce handling by completing multiple features in one machining cycle.
Yes. CNC turning can support both prototype development and repeat production. Prototypes allow manufacturers to verify dimensions, fit, materials, and design details before scaling up. For larger production runs, tooling, cycle time, process stability, and inspection methods can be optimized to improve consistency and manufacturing efficiency while maintaining the required part specifications.
For an accurate CNC turning quotation, provide a 3D CAD file and 2D technical drawing, along with the required material, tolerances, order quantity, and surface finish. The drawing should also identify critical dimensions, threads, surface roughness, heat treatment, or inspection requirements where applicable. Clear project information helps the manufacturer evaluate machining feasibility, production method, lead time, and cost more accurately.
Jun 24 2026
As a professional precision CNC turning parts supplier, we work with a wide range of metals and plastics, and are familiar with the characteristics of each material in the turning process. Common materials used in our CNC turning/turned parts include: stainless steel and alloy steel, brass/copper, aluminum, titanium, magnesium, nickel, nylon, PEEK, ABS, etc.
LJZ CNC, a rather excellent cnc precision turning parts factory, provides customized CNC lathing service. With our computer-controlled lathe machines, the materials to be shaped are placed in the lathe and spun at a high rate of speed. For the desired shape, the spinning item is further handled by many other tools. Secondary process is required for CNC lathe machining parts produced by our china cnc precision turning parts factory, like coloring and shielding, to meet the diverse application needs of our clients.
LJZ CNC turning technologies and facilities are designed to meet the strict requirements of industrial customers by offering end-to-end precision CNC turning service. We work with demanding mechanical engineers who come from the following industries: aerospace, automotive, medical devices, tool and die, opticals, consumer products...
As a reputable CNC precision turned components supplier, LJZ CNC provides different kinds of high-quality CNC machining turning parts, such as CNC turned titanium components and CNC turning brass parts, with quite competitive prices and considerate service. Supported by an experienced engineering team and advanced machines, CNC turning products by LJZ have won the trust and recognition of customers.
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