The Tommyknocker

Our portable, standard size mine refuge chamber, The Tommyknocker, supports 10 occupants. Custom sizes are available.

When supplied with a Refuge One Air Centre, the Tommyknocker serves as a complete mine refuge system.

Benefits of RANA’s Tommyknocker

• Modular | Rugged

• Addtional 2 ft (610 mm) sections can be added to comfortably accommodate the maximum number of expected occupants
• Heavy-duty, 12-gauge formed steel construction

• Portable

• Four built-in laser-cut lifting lugs facilitate lifting and hoisting within a mine shaft
• Skid-mounted for easy relocation and forklift transport within a mine

• Independently powered

• Equipped with 120V AC and 60 Hz battery charger inputs; 12V DC outputs 
• (other voltages/frequencies available)

• Two air sources

• May use the mine’s compressed air supply or function independently using a Refuge One Air Centre to supply breathable air

• Self-contained

• When equipped with a Refuge One Air Centre

• Lighting

• Internal lights operates on battery or mine power
• Externally mounted warning lights indicate when batteries require charging

• Reflective signage

• Externally mounted and designed to be easily read in poor light conditions

• Air Lock | Leak tested

• Two sealed doors maintain the internal air quality by providing an air lock
• Leak testing ensures toxic gases are kept out of chamber and breathable air stays in

• Seating | Bench Storage

• Hinged, padded benches provide comfortable seating and extra storage

• Wall Cabinet

• Contains drinkable water dispenser, first aid kit and provides extra storage