Compressed air for CNC milling machine should be oil-free or oil-free according to specific process requirements if it involves precision machining, high surface quality requirements or processes that need to avoid oil pollution, oil-free compressed air must be used; if the process is not sensitive to oil and the equipment has basic filtering capacity, micro-oil compressed air can meet the demand. The following is a detailed analysis of the two cases:
oil-free compressed air applicable scene
- precision machining when the CNC milling machine is used for high-precision processing, such as optical lens grinding, laser cutting auxiliary gas source, etc., trace oil may adhere to the surface of the workpiece, affecting the processing accuracy and surface quality. At this time, oil-free compressed air is a necessary choice.
- High surface quality requirements for processing that requires high surface quality, such as cleaning and drying of electronic components, oil may cause surface contamination and affect product performance. Oil-free compressed air ensures the purity of the process.
- Avoid oil contamination in industries that are sensitive to oil, such as food and medicine, oil-free compressed air must be used in the processing of CNC milling machines to avoid damage to products caused by oil pollution.
Micro-oil compressed air applicable scene
- non-precision machining: For general CNC milling machine processing, such as milling and drilling of ordinary mechanical parts, micro-oil compressed air can usually meet the demand. These processes are not sensitive to oil, and downstream equipment (e. g. pneumatic clamps, stamping equipment) may have basic filtration capabilities.
- Cost Considerations: The initial purchase cost and maintenance cost of oil-free compressed air are usually higher. When the process does not require high oil content, the choice of micro-oil compressed air can reduce production costs.
- Device compatibility: Some CNC milling machines may be designed to use micro-oil compressed air. At this time, replacing with oil-free compressed air may require modification or adjustment of the equipment, increasing unnecessary costs.
