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Pneumatic inward sliding bus Door Systems for BRT

Pneumatic inward sliding bus Door Systems for BRT

Supplier info
Circle Bus Door Systems Co.,Ltd
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Our company is the leading bus door system manufacturer in Asia and owns more than 20 patents in the automatic door industry, we can provide the optimum door system for any vehicles.


Application: mainly used as the entrance and exit doors for BRT buses and high end low floor buses.

Design Feature: The flip mechanism is used at the bottom of door panel to enable the doors widely used in the low floor with angles. The main components such as cylinder, solenoid valves of overhead operators are imported from oversea to ensure the high reliability.

Operating principle:

1)Auto operation :When open or close switch is pushed, the solenoid valve will be actuated, which actuate the double acting pneumatic cylinder. The liner motion of cylinder transfers to door shaft rotation through shaft swing arm on the baseplate. With guide roller which is mounted on the top of door panel moving along the roller channel, the door panel rotates inward or outward to open or close.

2)Emergency release: In case of emergency, rotate the emergency valve 90 degree to release the air pressure. Manually push the door panel front edge to open the open.

3)Sensitive edge: In case the passenger or other items are clamped during the vehicle door closing, the sensitive edge of door panel will be actuated to reverse the motion to open the door.


Beautiful and neat appearance

Smooth, rapid operation

Limited protrusion outside of vehicle

Door panels may be flat or moderately contoured

Clear passenger path

Imported Technology Sensitive Edge Design

May require step cutout

Main Parameter:

Operation Temperature:
-40°C - 80°C

Operation Pressure:
90-125 psi

Operation Voltage:
DC12V or DC24V

Life Cycle:

Door closing or opening time:
3-5 seconds

Single or Double Slide Glide

About the company

Year established
Business type
Number of employees
NO.55 Hebin Road, Nanjing, Jiangsu, 211800, China