Doors

RFI Industries is able to supply a large range of doors, including double doors, sliding doors, large chamber doors and electrically operated doors. Special door features include electromechanical door interlocks, alarm systems, waveguide vents and window inserts.

P.C.S. Doors

RFI Industries has developed the Protected Contact System door assembly which features a recessed brass pocket which contains the contact strips. The knife edge of the door pushes into firm contact with the strips, deflecting them inwards. As the deflection is at right angles to the direction of travel there is no reverse thrust from the door. The door is fitted with rows of tin plated beryllium copper contact strips around its periphery. These contact strips are mechanically attached.

P.C.S. doors are equipped with our special latching system to provide positive closure. The latching system has been tested in excess of 250,000 trouble free operations. Bearing surfaces, rollers and door cams are of case hardened steel, designed to provide years of trouble free operation with no loss of attenuation due to friction and wear. Ball bearing adjustable hinges complete the fitting of the door.

Sliding Doors

RFI Industries has designed the Model RT-RS series of retractable sliding doors for installation in anechoic chambers. 

Retraction

The door is designed to retract for a distance to clear the absorber depth before sliding to provide the clear opening. The retractable distance is set at manufacture as it affects the design of the carriage system. If required, an alternate retractable distance may be confirmed at the time of ordering. 

Sliding

Total sliding distance is the width of the clear opening. 

Material

Steel (supergal). 

Operation

Manual or automatic. 

Weight

The total weight of the door frame carriage system and support structure is approximately 7000Kg for a typical size of 3.5m (w) x 4.0m (h). 

Performance

Magnetic Field 70dB at 10kHz, increasing to 100dB at 100kHz
Electric Field 120dB from 10kHz to 100MHz 
Plane Wave 110dB from 100MHz to 10GHz and then decreasing to 100dB at 18GHz. 

Operating sequence

The total operation of the door is by electric and hydraulic automation and is powered by separate electric motors operating in sequence and a hydraulic locking system. The operation sequence for opening is in 3 stages.

1. Unlatching of the hydraulic locking mechanism.
2. Motor 1 retracts the door perpendicular to the frame.
3. Motor 2 slides the door parallel to the frame to provide the clear opening.

This sequence is reversed to close the door. 

RFI Industries is able to supply a large range of doors, including double doors, sliding doors, large chamber doors and electrically operated doors. Special door features include electro-mechanical door interlocks, alarm systems, waveguide vents and window inserts.