High/ultra-precision turning machines for industrial production
How a high-precision turning machine works
The high-precision turning machine is a machine tool for metal cutting that is specifically designed for the highest levels of accuracy in the micro- and submicrometer range. It is used wherever tight tolerances, excellent surface finishes, and reproducible results are required. The basic machining process is based on turning: The workpiece rotates around its own axis while a stationary or moving cutting tool removes material in the form of chips.
Unlike conventional turning machines, high-precision turning machines are characterized by extremely rigid machine beds, temperature-stable designs, and high-resolution drive systems. Hydrostatic or air-bearing guides are often used to minimize friction and ensure smooth movement. This allows even the smallest contours to be reproduced with precision.
The machining process begins with clamping the workpiece in a clamping device, such as a precision chuck or collet. The workpiece is then rotated at a precisely controlled speed. The cutting tool, typically made of carbide, CBN, or diamond, approaches the workpiece along defined axis movements. Material is removed layer by layer through controlled feed and cutting speed.
Modern high-precision turning machines are generally CNC-controlled. This means that complex geometries can be manufactured automatically and with high repeatability. Temperature monitoring sensors and active compensation systems ensure that even minimal deviations are compensated for. This makes the machine ideal for manufacturing highly complex components with extremely fine surface structures and precise dimensional accuracy.
On machineselection.com, you can also find all other types of turning machines.
Design of a high-precision turning machine
The highly advanced components of a high-precision turning machine are designed for maximum accuracy. The machine bed forms the stable base and provides vibration damping. The headstock, equipped with a high-precision main spindle, drives the workpiece. Guides, often hydrostatic or air-bearing, ensure low-friction movements.
The tool turret or tool holder accommodates the cutting tools. High-resolution drive systems and servo motors enable precise positioning. The Control forms the heart of the machine and coordinates all motion sequences. The system is complemented by measuring systems, cooling devices, and protective covers for safe and stable machining processes.
Turning to achieve high surface finish
A high-precision turning machine achieves surface finishes in the range of Ra 0.1 to 0.01 µm. Ultra-precise tools and stable processes produce mirror-like surfaces with the highest dimensional accuracy.
Diamond turning
Diamond turning is an ultra-precise machining process in which workpieces are machined using a diamond tool. The goal is to produce extremely smooth surfaces and highly accurate geometries in the nano- to submicrometer range. The process is particularly common for optical components, mirrors, or high-precision mold inserts.
Diamond turning uses a monocrystalline diamond cutting material, which enables extremely fine cuts due to its exceptional hardness and wear resistance. The workpiece rotates as in conventional turning, while the diamond tool removes material at a minimal feed rate. This results in virtually perfect surfaces with a mirror-like finish. Diamond turning is typically performed on a high-precision turning machine.
Applications in Industrial Manufacturing
The high-precision turning machine is used in numerous high-tech industries where the highest dimensional accuracy is critical. These include medical technology, aerospace, precision engineering, the watch industry, the automotive industry, and semiconductor manufacturing. It also plays a central role in the optics and electronics industries.
A high-precision turning machine is used to produce the following workpieces, among others:
- Implants
- Surgical instruments
- Turbine components
- Injection nozzles
- Precision shafts
- Micro bearings
- Optical lens mounts
- Housings for sensors
- Valve components
- High-precision dowel pins
- Watch parts
- Micro housings
- Connectors
- Nozzle bodies
- Spindle components
Thanks to its ability to produce the finest structures, the high-precision turning machine is indispensable for the production of sophisticated individual parts and series components in technologically leading industries.
Tools for a high-precision turning machine
High-precision turning machines utilize specially developed cutting tools for the finest machining operations. These include:
- Carbide turning tools
- CBN and PCD tools
- Diamond tools
- Fine turning tools
- Grooving tools
- Thread turning tools
- Profile tools
- Micro turning tools
- Internal boring tools
- Forming turning tools
- High-precision boring bars
The range is complemented by polishing tools and special cutting inserts for various materials. The selection of tools is crucial for surface quality, dimensional accuracy, and process reliability.
Accessories and supplies for a high-precision turning machine
To operate a high-precision turning machine, you need high-precision clamping devices such as collets, precision chucks, or special holders. Coolant lubricants are essential for reducing heat generation and extending tool life. Measuring equipment such as precision measuring instruments, probes, and laser measuring systems ensure the required precision.
In addition, filter systems for coolants and extraction systems are required. Vibration-damping pads and climate-controlled environments also contribute to accuracy. Software solutions for CNC programming and simulation round out the equipment.
Leading manufacturers of high-precision turning machines
In our manufacturers directory, you will find companies that produce high-precision turning machines for metalworking.
The following terms are frequently searched: Schaublin high-precision turning machine, Fives Group high-precision turning machine, Precitech high-precision turning machine, Hembrug high-precision turning machine, Tsugami Swiss high-precision turning machine, LT Ultra high-precision turning machine, Spinner high-precision turning machine, Tornos high-precision turning machine, DMG Mori high-precision turning machine, Innolite high-precision turning machine
Selecting the Right High-Precision Turning Machine
If you are looking to purchase a high-precision turning machine, there are several important features and specifications to consider.
- Of particular importance is the achievable accuracy, which is often in the sub-micrometer range.
- Equally relevant are the spindle accuracy, runout values, and thermal stability of the machine.
- The type of guides—such as hydrostatic or air-bearing—significantly influences machining quality.
- High-resolution measuring systems and modern Controls ensure precise motion sequences.
- The maximum spindle speed, feed rate, and number of axes should be tailored to the planned applications.
- Another important aspect is the machine’s rigidity as well as the quality of the components used.
- Automation options, such as tool changers or loading systems, can increase productivity.
- Last but not least, service, ease of maintenance, and expandability play an important role in the investment decision.
Search now on machineselection.com for the high-precision turning machine that meets your production requirements.
Information on high-precision turning machines
This article also helps with the following search terms:
- Ultra-precision turning
- Ultra-precision machining