Die changes, adjustments, and maintenance are routine parts of metal stamping. They're also when some of the most serious accidents can occur. That's why proper lockout/tagout (LOTO) procedures are critical to protecting our team.
What is Lockout/Tagout?
Lockout/tagout is a safety procedure that ensures equipment is properly shut down and cannot be restarted during maintenance or servicing. It protects maintenance personnel from unexpected equipment startup, release of stored energy, or contact with hazardous moving parts.
Our LOTO Process
At Lime City Manufacturing, every die change and maintenance activity follows strict lockout/tagout protocols:
- Preparation - Notify affected personnel and identify all energy sources
- Shutdown - Turn off equipment using normal stopping procedures
- Isolation - Disconnect or isolate all energy sources (electrical, pneumatic, hydraulic)
- Lockout - Apply locks and tags to energy isolation devices
- Verification - Test that equipment cannot be restarted and stored energy is released
- Maintenance - Perform the required die change or repair work safely
- Restoration - Remove locks/tags, restore energy, and verify safe operation
Why It Matters
Die changes happen frequently in stamping operations. Presses ranging from 16 to 300 tons involve significant stored energy and powerful mechanical systems. Without proper LOTO:
- Presses could cycle unexpectedly during die installation
- Stored hydraulic or pneumatic pressure could cause sudden movement
- Electrical systems could energize without warning
Training and Accountability
Our well-staffed tool room team receives ongoing LOTO training and certification. Each technician carries personal locks, and our procedures require that only the person who applied a lock can remove it. This personal accountability ensures no shortcuts are taken. With our comprehensive die maintenance capabilities - including CAD/CAM design, CNC machining, and a spare parts inventory - we perform extensive die work in-house. Proper LOTO procedures make this work safe and efficient.
