To control the airflow in your underground mine, personnel doors are necessary to enable the rotation of foot traffic without significantly impacting the exchange of air between partitioned areas. We offer both rotary doors for frequent traffic and slide doors for emergency situations. Both are available as optional add-ons to either a bi-fold door system or a high pressure door system.
As part of your control package, our personnel doors are equipped with cap lamp sensors, photo eye assemblies, safety limit switches, and more. With quality construction, meticulous control installation, and numerous customization options, we have the perfect personnel door to meet your needs.
Rotary doors are an optional feature in our bi-fold and high pressure door systems. They are an excellent option for handling both frequent traffic and emergency situations. A rotary door is designed to open with minimal effort, without the danger of air forces slamming it shut during use. It also features adjustable spring assist closures, which enable the door to close automatically when unattended.
HMFG’s rotary doors feature formed ¼” steel frames & 10-gauge doors with heavy duty 3/8” end plates. We use sealed pillow block bearings and an adjustable spring assist closure. Key components are enclosed in the frame on both the top and the bottom of the doors. The doors are sealed with heavy duty bulb style seals to minimize air leakage. Their heavy duty construction ensures that they will offer smooth operation for years.
- Formed ¼” steel frame
- Formed 10-gauge steel door
- Heavy duty 3/8” end plates
- 1.9375” pivot shafts
- Quality pillow block bearings
- Adjustable spring assist closure
- Sealed for minimal air loss
- Key components enclosed in frame
Sliding doors are an optional feature in our bi-fold and high pressure door systems. These doors are designed to be an emergency only feature and are not recommended for regular foot traffic. They allow personnel to exit an area quickly without the need to engage the main doors. A sliding door is typically installed into the wing of the main bi-fold or high pressure door, and it opens and closes with minimal effort, even under extremely high pressure conditions.
Each HFMG sliding door features heavy duty adjustable rollers with sealed ball bearings and bulb style seals to eliminate air leakage. It is designed to minimize air flow as part of maintaining proper air pressure and ventilation throughout the underground mine system. Its heavy duty construction ensures that it will offer continued reliability and smooth operation.