VTC70 high-speed small CNC vertical lathe is usually used for machining precision parts, but it is not specially designed for brake drum machining. In general, brake drum processing requires special equipment to cope with its larger size and special processing requirements. The following are the equipment and processes usually required for general brake drum processing:

1. Large CNC lathe or special brake drum processing equipment: Brake drums are usually larger, and generally require larger CNC lathes or special brake drum processing equipment to meet their size and processing requirements.
2. Guide seat and fixture: During the brake drum processing, the guide seat and fixture are used to clamp the drum disc to ensure stability and processing accuracy.
3. Cutting tools: Brake drum processing usually requires the use of special milling cutters and turning tools to meet the requirements of cutting force and surface quality.
4. Processing technology and program: According to the processing characteristics of the brake drum, formulate the corresponding processing technology, including cutting path, rotation speed, feed speed and other parameters, and write the corresponding CNC program.

Therefore, for the processing of brake drums, it is recommended to choose special equipment or large CNC lathes suitable for the processing needs, and combine appropriate tools, fixtures and processing techniques for processing.