DOOR ACTUATION OPTIONS
Manual Actuation
Excellent option for low traffic areas. No actuation method. Due to our “opposing wing design” AMD still sells a large quantity of mine doors that are opened and closed manually. This can be done due to our design; the door actually uses the air pressure in the mine to assist with opening and closing the door. If an AMD doors wings are opened up 50%, the doors will remain in this position and not slam open or closed from the air pressure. This “balanced” design is the safest door design in the world.
Pneumatic Actuation
Over the last 40+ years we have sold thousands of pneumatically operated doors. Contact AMD Co. if you have any questions regarding our Pneumatic Control Systems! A Pneumatic Control Package will consist of the following items:
- A NEMA12/13 powder coated enclosure is used to house the pneumatic control system. Optional enclosures are available (NEMA4, NEMA4xSS).
- The system operates from the mines internal pressurized air supply. A minimum of 120 PSI is required to operate the system.
- If you want to operate your Mine Door using a pneumatic system and do not have available pressurized air, AMD can supply an optional air compressor to operate your door.
- An exterior air filter is supplied with this system to maintain clean air into the system.
- A 17-gallon air storage tank (supplied) is tied into the system to offer 3-5 open/close cycles in the event of a power outage (loss of air). Number of cycles during a power failure is dependent upon size of door and WG pressure within the mine.
- Pressurized air travels into a 2-way directional valve. When a pull switch is pulled, this signal travels to the solenoid and directs the valve to either the open or the closed position (based upon previous state of the valve position). The solenoid valve then directs the 2-way valve to either open or close the door. Door open and close travel speeds can be regulated by the two flow valves directly located inside of the enclosure.
- A terminal strip is provided for all electrical connections. These pneumatic control systems can accommodate any common mine voltages.
- The last piece in the AMD Pneumatic Control System is the Air Cylinder. The Air Cylinder is affixed on top of the door. Once the two air lines from the AMD Pneumatic Control System are run to the cylinder, and all the electrical connections are made, the door is operational.
- AMD supplies all the fittings required for installation, no air hose is supplied and is the mines responsibility.
Hydraulic Actuation
AMD has used traditional hydraulic power units for over 20 years to actuate our mine doors with great success.
- We offer 1-door, 2-door and 3-door packages to fit your needs. AMD can significantly reduce costs by using one electrical control system and one hydraulic power unit to operate 1, 2 or 3 doors. Our hydraulic power units last, we use top quality components from proven suppliers to build your system that will last as long as the door.
- We can also provide all the hoses cut to length and fittings you will require for install.
Hybrid Actuation
AMD has uncovered this latest technology of the AMD Hybrid Actuation System in an effort to provide the latest actuation technology available on the market today.
Highlights:
- East to install
- Easy to set-up
- Easy to operate
- 25 Year Product Life
- Industry leading warranty
- Proven Hydraulics, complete self-contained.
- Local discrete operation.
- Simple 2 wire on/off operation.
- Virtually maintenance free for low operating costs.
- Serial bus connectivity, network connectivity.
- No plumbing, hoses or oil needed, plug and play actuation.
- The sealed system keeps external contaminants out.
- Reservoir volume is LESS than 1 gallon.
- The fluid is pre-flushed and cleaned for worry free operation.
- The integral filter allows for maintenance free operation (over 8000 hours of operation).
- NO hoses, fittings or other connectors required.
- Integral flow tubes with elastomeric seals ensure leak free operation.
- Compact brushless permanent magnet motor provides power on demand in small envelope.
- Proportional speed and directional control standard.
- Unit delivered filled with fluid and ready for service, simply connect via a power and control wire.
