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Bi-Fold systems are the most commonly used in underground mining. The equalized design uses the air pressure to assist in operating the doors. Bi-Fold systems are typically a great option for locations with up to 10” WG pressure. For higher pressures please see our High Pressure systems.
- Engineered to 10″ WG
- Available in free standing design
- Robust frame and panel construction
- Enclosed header to protect key components
- Sealed for less than 1% air loss
- Pneumatic or Hydraulic actuation
- Sheeted on both sides
- 4 ½” diameter door pivots
- Hardened 4140 linkage & cylinder pins
- HD flange mount bearings
- Most durable rotating assembly in the industry
Click image below to download the product brochure.
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