Ansa Doors custom manufactures a series of Fold Up / Bi-Fold Doors to suit even the most demanding applications. With door opening heights from 3000mm up to 8000mm and spanning widths from 3 metres up to an amazing 30 metres.
Regardless if the opening Fold Up / Bi-Fold door requires a single, double or three leaf design, Ansa Doors can engineer and manufacture the most appropriate door using high quality material so that the door provides many years of failsafe operation.
Ansa's Bi-Fold doors are hinged to open vertically into a folded horizontal position. The hinge line of the door moves to the outside of the doorway.
Cladding: Standard sheeting materials and profiles are commonly used and recommended, in either Colorbond, Powder Coat or painted finishes. Cladding can vary considerably, limited only to imagination and availability of material. Suggested cladding types may include; perforated sheeting, aluminium sheeting, timber claddings (plywood), acoustic sheeting, insulated sheeting, etc. Selected glass may be tinted or patterned.
Glazing: All glazed doors use laminated safety glass in accordance with the relevant Australian Standards AS 1288 and AS 2208. The minimum glass thickness is commonly called 5mm Laminated Safety. The glass is set in aluminium glazed adaptors fitted to the steel frame. The glazing adaptors are fitted to the frame with a continuous bead of silicon, between the steel frame and the adaptor which gives adequate water resistance, as well as allowing flexing of the frame. ANSA security glazing beads are fitted as standard, All Ansa glazed doors are fitted with an overlapping brush seal to the bottom and sides of the door. The seal bristles are black, the finish of the seal holder is matched to that of the door frame and / or glazing beads.
Bar Grille The Bar Grille type door is designed for maximum ventilation. The face of the door frame is clad using 25 x 25 Galtube Plus R.H.S bars welded vertically at 150mm nominal centres. This provides for a very strong door used primarily in carpark situations. Horizontal transoms are placed at the top and the bottom of the door frame, with intermediate transom(s) at nominal 1200mm centres.
Fully Internal Bi-Folding Ansa Doors also manufactures one door that is available for special requirements which is a fully internal Bi-Folding door. This door does not project out of the building at any stage of its operation, as such, the door projects into the building half the door height and requires support structures to be built above the door opening, extending into the building for half the door height. When the door is shut this support structure is visible as is the steel cable running diagonally from the lower leaf to the end of the support structure.
The door is not suitable for high wind situations and has hinges fitted to the front face of the door which precludes the use of front mounted architectural glazing adaptors.The door can be manufactured with two equal leafs, hinged to open vertically into a folded horizontal position totally inside the building. No part of the door extends beyond the building line.
Methods of Operation
Option A: Hand Operated Bi-Fold Doors Where applicable, these doors can be operated manually, by hand. By using the handles situated on the bottom framing member of the door, it can be raised up or down. Locking is obtained by sliding shoot bolts fitted, one each end at the bottom of the door frame. Padlocks can be applied to these shoot bolts.
The doors are designed so that moderate force is used (due to counter-balancing), therefore controls the operation of the door, during opening and closing. When in the open position the door leafs are lockable with an automatic slam locking device. A hook rod is provided with all doors taller than 2100mm, this enables the operation of the door to be controlled and to facilitate release of the slam lock.
Option B: Electrically Operated Bi-fold Doors Electrically operated Fold Up Doors are operated via a push button control station, comprising of Raise, Lower and Stop buttons. When raising the door the up button is pressed, this activates the door and will raise it to the desired set limit. In the event that the door needs to be stopped, pressing the stop button (e.g: this may be the case if the door is jamming). When lowering the door, the operator must continue to press the down button until the desired set limit is reached. Release of the down button will automatically stop the door. In the event of a power failure the door can still be operated by fitting the chain over the chain wheel, in turn, using it as a chain operated door.
Drive units will be chosen as appropriate to door size and number of operations, unless otherwise specified. The door will be fitted with a heavy duty ramp and a ball-bearing race cam drive system at each side of the door. The standard cams are fitted with removable pins to enable the door to be converted to hand operation in the event of a power failure.
The standard average speed of operation shall be a nominal 9 metres per minute. Bi-Fold Doors less than 3000mm high with power operation are available but are not recommended because of the restricted room for the power operation.
Special optional accessories for carpark type applications:
Remote control Units
PE Beams
Loop sensor controls
Contact one of our Sales Engineers to discuss your application needs on +61 (03) 9302 3366
