Machine tool guide rail lubrication and characteristics

Selecting appropriate lubricants, lubrication methods, and lubrication intervals is critical for machine tool guide lubrication. The following key points should be noted:

Selection of Lubricants: Oil or Grease Based on Machine Tool Characteristics

1.High-speed machines and hard rail machines are recommended to use oil lubrication.
2.For vertical machining centers (VMCs), drilling-tapping machines, and other hard railmachines, lSO VG 68# lubricating oil is advised.
3.For horizontal machining centers with linear guides and gantry machining centers (largemachines), lSO VG 220# lubricating oil is recommended.
4.Increasingly, customers are adopting grease lubrication instead of oil lubrication forthree-line rail machines.
5.Grease recommendation: Use semi-fluid grease with extreme pressure (EP) additivesand rust inhibitors,specifically NLGI 00 Or NLGI 000.

2.Dispenser displacement selection and lubrication frequency are critical to machine tool lubrication. All dispensers must meet the minimum displacement requirements specified by the linear guide manufacturer (see the minimum recommended values for THK sliders in the table below). The lubrication interval for oil is relatively fixed: it is recommended to be 10 minutes (not exceeding 15 minutes) for ISOVG68# oil, and 2 minutes for ISOVG220# oil. For grease lubrication, the interval ranges from 1.5 to 8 hours depending on equipment operating conditions and protection.

BAOTN offers both specialized grease pouches and barrel grease for machine tools.

‌3. Different lubricating oils have varying chemical compositions; mixing incompatible oil types may induce chemical reactions, potentially leading to guide rail corrosion.‌
‌4. Guide rail sliders must be pre-lubricated before machine assembly and shipment, and the pre-lubrication process requires full travel stroke coverage.

Machine tool guide rail lubrication and characteristics

Selecting appropriate lubricants, lubrication methods, and lubrication intervals is critical for machine tool guide lubrication. The following key points should be noted:

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