Operating rules for large horizontal surface grinding machines

Compliance with operating and safety rules is the basis for safe and precise work on large horizontal surface grinding machines. The most important rules:

1. Check all assemblies for proper condition before starting. After a cold start, run the spindle for 2–20 minutes at low speed to distribute the lubricating oil – especially important in winter. Only then start machining.
2. Only change the speed when the spindle is at a standstill.
3. To preserve spindle accuracy, do not perform automatic longitudinal feeds via the long lead screw (except when cutting threads).
4. Never align or strike workpieces on the chuck or guideways; do not align workpieces or tools on the machine table.
5. When aligning heavy workpieces, protect the table surface with wooden boards. If the workpiece cannot be removed at the end of the shift, support it with jacks.
6. Resharpen worn grinding tools promptly and correctly.
7. Oil the guideways before using coolant. Change the coolant in the coolant tank regularly.
8. During automatic operation, body and hands must not be in the movement range of the machine.
9. Only machine with the safety guard closed and locked; do not open the doors during automatic operation.
10. The spindle speed must not exceed the maximum speed permitted for the chuck – high speeds reduce the clamping force.
11. At high speeds, clamp workpieces securely to prevent them from being thrown out.
12. Always clamp workpieces and tools firmly and reliably – insufficient clamping force can cause workpieces to fly out and result in serious accidents.
13. Do not machine beyond the permitted cutting values (overload).
14. Never remove or modify safety devices. Only operate the machine with all safety guards fully functional.
15. Assembly, maintenance and adjustment work only by qualified personnel in accordance with the operating manual; disconnect and lock out the power supply before maintenance work.
16. After work, remove chips and coolant residue from the machine and its surroundings, clean the machine and re-oil the designated points.
17. At the end of the shift, move the longitudinal carriage to the end position, set all controls to neutral and switch off the machine.

Conclusion: These rules protect people and machines. Regular training and disciplined working practices are the key to safety, precision and a long service life for your grinding machine.