Balanced doors, also known as balanced sliding doors, have obvious advantages in the design of modern building entrances, especially suitable for use in conjunction with oversized and overweight door bodies. The upgraded balance door series products developed by Kaibisheng feature significant advantages such as friendly opening force, strong wind pressure resistance, and high anti-disconnection performance.

The main functional principle of a balanced door is to equalize the wind pressure between the interior and exterior of the building through the movement of the door shaft, thereby enabling easy opening of ultra-high and oversized doors.

上拐臂组件 Upper crank arm assembly

上门轴座组件 Upper door shaft seat assembly

主转轴 Main rotating shaft

下托臂组件 Lower supporting arm assembly

底座 Base

门扇及门框 Door leaf and door frame

Two common appearances of balanced doors.

From the perspective of door appearance, balanced doors can be divided into two main types: exposed-shaft balanced doors and concealed-shaft balanced doors.

Main Functional Advantages of Balanced Doors

KBB continuously optimizes the design concept of balanced doors, fully considering technical requirements such as door weight, door height, wind pressure, sealing, limiting, and maintenance, endowing the products with stable and durable performance. The exterior design takes modern minimalist aesthetics to the extreme. 

Pull-Arm Positioning

The lower latch stop is replaced with pull-arm positioning for stable and accurate operation.

Enclosed Shaft Design

The enclosed shaft design replaces the exposed shaft design, ensuring a consistent style of the door body.

 Slim Vertical Frame

 The vertical frame is reduced to a width of 48mm, making the overall appearance of the door body more transparent.