Product Name: NR300 Outernal Rotary Lift Lock Pneumatic bus door system
with emergency release
Application: tour bus,intercity bus,coach.
System Component: Rotary actuator, Shaft assembly and Door panel assembly.
1) The actuator provides rotary motion and “Lift-to-latch” feature.
A double acting cylinder drives a splined shaft through a helical
ball cage to provide rotary motion. When the door reaches the
closed position, the actuator lifts the door shaft and door panel
approximately 10mm,enabling latches on the door panel to engage
mating wedges on the door jambs.The door panel is held closed as
long as air pressure is applied the actuator.
2) The shaft assembly is designed for easy installation and
3) The door panel can be specially designed to match with full bus
design. It is made of aluminum alloy, which has the attributes of
light weight, high strength and long life.
1) Auto operation :When “open” or “close” switch is pushed, the 5-way 2-position
solenoid valve will be actuated, which drives linear pneumatic
cylinder move up and down. Through splined shaft,the linear motion
transfer to rotation, which cause the door open or close.
2) Emergency release: In case of emergency, rotate the emergency valve 90 degree to
release the air pressure. The door panel will drop as soon as air
pressure in the cylinder is low. Push the door panel manually to
open the door
3) Sensitive edge: In case the passenger or other items are clamped during the
vehicle door closing, the door panel will be lifted and actuate the
limit switch to reverse the motion to open the door.
|Maximum torque in locked position (@90 psi)||122 ft-lbs|
|Recommended door shaft rotation||90 degree|
|Envelope size||5.51”w x 12.50”d x 4.53”h|
|Operating temperature||-30°C to 80°C|
|Operating pressure||90-125 psi|
|Minimum Life cycle||Local wedge lock|
|Door opening/closing time||3-5 seconds|
Ivy Machinery Main Products:
SG300 & ESG300 slide-glide door system for city bus,
SG400 & ESG400 BRT slide-glide door system for city bus or low
floor BRT Vehicles,
BP300 electrical bridge-plate ramp for low floor bus,
ER300 electrical rotary door system for mini-bus,
NR300 pneumatic rotary door system for coach bus,
ESW300 electrical swing door system for school bus,
NOSP300 pneumatic outside sliding plug door system for high end
PF300 platform safety door for BRT bus stations.
Ivy’s main rail products :
EOSP300 electrical outside sliding plug door system for Metros or
EOSP330 electrical plug door system for low floor trams,
EIS300 electrical inside sliding door for Metros or LRV,
EOS300 electrical outside sliding door for Metros or LRV,
BP200 manual bridge-plate for low floor trams,
PF400 platform door system for rail stations.