... equipment and precision instruments.Applications:1. Engraving machines;2. High speed CNC machinery;3.Semi-Conductor equipment;4. ... 3000mm, it's easy packing, easy and safe for transport. Ball screw datasheet: Zhe Jiang Senior Guide ... screws and nuts, including precision grinding, heat treatment, CNC machining etc. Step 3: Heat treatment , increase ... Hours!!! You're welcome!!! Ball screw for CNC machine