GMS Mine Repair
Mine Doors, Man Doors & Specialty Doors
Secure Access
Custom-Built Mine, Man & Specialty Doors for Ventilation, Safety, and Traffic Control
GMS designs, fabricates, and installs heavy-duty mine, man, and specialty ventilation doors to provide secure underground access while maintaining precise airflow control. Built in-house to meet site-specific requirements, our doors are available in a variety of configurations — including personnel and equipment doors, sliding or hinged designs, and double-latch systems. Whether integrated into stoppings, bulkheads, or independent air control systems, these doors are engineered for durability, pressure resistance, and ease of operation in the harshest mining environments. By choosing GMS, you ensure safe and efficient personnel movement, reliable ventilation sealing, and long-term performance in both high-traffic and pressurized zones.
Large & Specialty Doors

- Channel frame construction
- Changeable bottom sweep
- Easy installation
- Custom sizes and variations available

- Measurement is Passable Opening
- Adjustable Frame Height at 6 in. increments
- Sliding Pressure Relief Door
- Designed for 11 in. Water Gauge
- Custom sizes and variations available

Bolt-together channel or heavy beam construction
- Changeable bottom sweep
- Various latching mechanisms available
- Custom sizes and variations available

Designed with opposable, slide-away doors with 84 in. maximum pass-through and for 8 in. block wall construction.
- 8 in. sight glass windows
- 30 in. x30 in. spring loaded mandoor
- Draw latch, 4400 lbs work load
- Available in custom sizes per mine requirements

Designed for block wall installation with 60 in. maximum pass-through.
- Heavy, 12-gauge construction
- 8 in. sight glass windows
- 30 in. x30 in. spring loaded mandoor
- 60 in. removable door
- Draw latch, 1100 lbs work load
- Available in custom sizes per mine requirements

- Available in galvanized or painted versions
- Bar latch or self-latching available
- Single flanged for easy installation
- Flat gasket seal
- Custom sizes available upon request

- Door can be utilized on either side of frame
- Available in galvanized or painted versions
- Single or double latching
- Flat or bulb gasket seal
- Custom sizes available upon request

- Available in galvanized or painted versions
- Self latching or bar latching
- Flat or bulb gasket seal
- Custom sizes available upon request

- Latch Doors
- Available in galvanized or painted versions
- Heavy gasket and double latching for a tighter seal
- Custom sizes available upon request