Brand History

The world' s first 6m/s high-speed elevator, in the overall technology research and development of which Ade . John- son, the founder of Desenk Elevator, has participated, is installed in the Empire State Building in New York, marking the formal rise of high-speed elevators in the world.

Ade . Johnson and his team were invited to install a self-developed passenger elevator for multiple buildings in Shanghai, China.

He has established the Duration Technology Development Studio (formerly Desenk Elevator) in Yorktown, a small town of New York, and successfully developed a vacuum tube elevator controlled by minicomputer.

The Duration Technology Development Studio has developed an AC elevator.

The studio has also developed a solid thyristor for the elevator traction system as well as an AC speed and voltage regulating system that has significantly improved the speed control performance of AC elevators.

Duration has developed itself in an ll-round way and become a modern professional elevator company integrating design, manufacture, sales, installation and service. With its superb technology and professional service, it has gradually developed a global sales network and officially renamed itself American Desenk Elevator Shareholding Co., Ltd.

It has developed a variable voltage variable frequency elevator.

It has introduced advanced remote elevator monitoring system and the elevator monitoring system has gradually become the means of major elevator companies to improve service.

It has successully designed a world-class non-machine room elevator, which is driven by permanent magnet synchronous motor.

Together with Zhongao Elevator Co., Ltd, the subordinate of Xinshen Science and Technology Co. Ltd, it has set up a joint venture- -Desenk Elevator (China) Co., Ltd--in NanXun Elevator Industry Park in China.

The company invested 90 million US dollars, a project covers an area of 80,000 square meters, a total construction area of 76,000 square meters, the industrial park built a 108-meter test tower, with six test wells, installed 3 m/ s high-speed Sightseeing ladder and 8 m/s ultra-high-speed elevator.