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2026

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The Impact of Ambient Temperature on CNC Lathes

The turning-milling CNC lathe can efficiently and accurately machine workpieces and features drilling and threading capabilities. It is suitable for processing various metal materials, as well as parts used in shaft-breaking products and the plumbing industry. This method is easy to program and offers high machining accuracy, making it an ideal equipment for producing complex shaft components.


The turning-milling CNC lathe can efficiently and accurately machine workpieces and features drilling and threading capabilities. It is suitable for processing various metal materials, as well as parts used in shaft-breaking products and the plumbing industry. This method is easy to program and offers high machining accuracy, making it an ideal equipment for manufacturing complex shaft components.

When using a turning-milling composite CNC lathe, it is essential to maintain a constant ambient temperature. The acceptable ambient temperature range is 10–40℃. At an ambient temperature of 20℃, the relative humidity should be between 40% and 75%. To ensure that the machine tool’s static accuracy remains within the specified tolerance, the ambient temperature must be kept between 15℃ and 25℃, and the temperature difference over a 24-hour period must not exceed ±2℃.

When the voltage is unstable, the machine should be equipped with a stable power supply to ensure its normal operation. The lathe should also be reliably grounded. The grounding wire should be made of copper with a diameter of no less than 10 mm² and a grounding resistance of less than 4 ohms.

The CNC turning and milling composite lathe used in daily operations should be kept away from direct sunlight, vibration sources, and heat sources, and protected from excessive humidity, excessive dust, or corrosive gases. Corrosive gases can cause corrosion and degradation of electronic components, leading to poor contact between components or short circuits, thereby affecting the normal operation of the equipment. Precision CNC equipment should be kept away from vibrations generated by larger machinery, such as punching machines, forging equipment, and stamping equipment.

CNC lathes should not be stored for extended periods. After purchase, it’s important to make full use of the machine’s control system—especially during the first year of operation. This practice helps prevent failure in weak links, allows such issues to surface early, and enables them to be addressed within the warranty period. To ensure the equipment operates properly, when the compressed air supply fails to meet the required specifications, a dedicated air-drying unit (for dehumidification, oil removal, and filtration) should be installed upstream of the machine’s inlet.

When there are no machining tasks, the CNC lathe should still be powered on regularly—ideally, 1 to 2 times per week—with each startup involving an idle run of about one hour. This allows the machine’s own heat to reduce humidity inside, protecting electronic components from moisture damage. At the same time, it enables timely detection of battery alarms, thereby preventing loss of system software and parameters.