Features: compact, lightweight device for easy installation and maintenance; you can configure the double-door electric ceiling windows, or simple decorative plates,; free positioning error is extremely small, memory lifting stroke; preset with all types of wire rod such as a projector : power cable, video cable, control cable (cable), VGA lines, no lifting during winding. Travel typically between 1 to 2.5 meters, special requirements can be customized to increase to 4.5 meters. Model Price WJ-SL1000D 1 WJ-SL1500D 1 WJ-SL2000D 1 WJ-SL3000D 1 WJ-SL4000D 1 are generally rated load two 25kg and 50 kg, bearing the weight of double rod is generally between 20 ~ 50kg appropriate, special requirements Customizable increased to 100kg, when this product requires lifting weights, if the load is too light weight ≤3kg, you need to add in the elevator with weights about 10kg, according to customer requirements can be pre counterweight. Double rod hanger suitable hoisting the relatively large size of the projector or a video camera, camera, general volume greater than 400 × 300 × 200 (mm). Control electronic positioning and mechanical positioning two models, is the use of electronic positioning remote control to set the lower limit positioning control, positioning accuracy ≤2mm; mechanical positioning adjustment to the chassis host machine, control the lower limit position, positioning accuracy ≤2mm. According to user needs, rod hanger electric ceiling windows need to open and close the door to hide, there are just decorative plate decorative plate blocked or unnecessary, so that the product can be divided into single hanger rod and joint action with suspended ceiling windows two kinds of frame. Linkage-type rod hanger is a combination of single pole or double pole hanger ceiling windows and two sets of host devices split made linkage controlled by cable connectors, install lightweight, reliable performance, beautiful appearance. Unique double-door design electric ceiling windows, with a minimum maximum window appearance, easy installation, beautiful appearance, reliable performance, drop the projector when required, double doors open, the projector is lowered down from the window decorations When the board to fill the block, we need to rise projectors, projector and shutter decorative plate rises, ceiling windows double door closed, to achieve the perfect hide effects. Run: lifting. Linkage electric ceiling windows.