Bi- fold doors, first it is a door and it is also a partition, used in shopping mall, exhibition hall, office buildings and families like kitchens, balconies, book-lined study. In kitchens, the Bi- fold doors can save much space, not stopping getting or putting something the cabinet at the back of Bi -fold doors. Now more and more Bi- fold doors are used in the balcony, replacing sliding doors in the areas not requiring high standard air tightness and water tightness, when opening, living room integrated with balcony, enhancing space feelings.
Bi--fold doors mainly consist of side frames, sash doors, transfer bars, tumbler parts, and bearing units. The most used are four sash doors- Bi- fold doors, two side sash doors and two middle sash doors. One vertical side frame of first sash door is connected to middle sash doors by articulated juncture, the other vertical side frame is fixed by top and bottom spindles, connected with matched spindles sockets, the first sash door frame can rotate around spindles side frames for 90° with connecting middle sash door.
There are several key points for assembling and installing the Bi- fold doors. The tolerance of cutting sash frames should be controlled max± 0.5-1mm, better to minus tolerance. The drilling holes in the frames for door hardware, like double side handles, lock cylinders, lock body, duplexing drive boxes, and are controlled exactly as fabrication drawings. The assembling of sash door corners must be strong enough, and checking the hinge back plates if are fixed. When installing, the whole side frames of Bi- fold doors must be horizontal and vertical, then the door sliding rail can be fixed.
China REXI Façade, first-glass window &doors manufacturer and suppliers in China, with fair price, we supply nearly 100,000 m2 windows and doors every year in China, earning good reputation in this curtain wall, window & doors field. We can do all the communication work if needed to make sure you have the suitable aluminum Bi- fold doors.