Product Range
Solenoid Valve For Automotive
Bus Door

Bus Door


Jack Knife Doors
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Works smoothly at rated pressure. Confirms continuous operation without faults.
Friction loss is minimum. Ensuring long life
Pneumatic cylinders confirm to ISO15552 Standard
The piston rod is of SS duly burnished
Various levels of safety can be optionally installed. Rotex provides highest safety for door systems
All products confirm to ARAI and other automobile standards
Doors available in MS as well as in Aluminum sections
Toughened glasses ensure low risk to passengers.
User friendly, can be installed at works easily, Rotex provides various assistance levels for aligning and fitments.
Use of bottom bearing increases ease of alignment.
Top guide bearing made of Polymer to operate door noiselessly
Cylinder links provided on swivel bearing, this avoids jamming of doors.
Hinges made from bearing grade polymers.
Special profile rubber gaskets to increase sealing efficiency,
Built in sensor in the rubber beading for human safety
Infra Red sensors for touch free operations…
Simple to install and easy to maintain

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Inswing Doors
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Various levels of safety can be optionally installed. Rotex provides Highest safety for door systems
Works smoothly at rated pressure. Confirm continuous operation without faults.
Friction loss is minimum. Ensures long life
Pneumatic cylinders confirm to ISO15552 Standard
The piston rod is of SS duly burnished
User friendly, can be installed at works easily, Rotex provides various assistance levels for aligning and fitments.
All products conforms to ARAI and other automobile standards
Toughened glasses ensure low risk to passengers.
Aligning on a single rod to prevent misalignment of doors
Top guide bearing made of polymer to operate door noiselessly
Provided with outer rubber gasket for external sealing . That is positive sealing
Cylinder links provided on swivel bearing, this avoids jamming of doors.
Hinges made from bearing grade Polymers.
Special profile rubber gaskets to increase sealing efficiency,
Built in sensor in the rubber beading for human safety
Infra Red sensors for touch free operations…
Simple to install and easy to maintain
Provided flapper with rubber gasket at bottom for positive sealing
Brush with rubber gasket provided on top for positive sealing
Attractive appearance

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Outswing Doors
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Works smoothly at rated pressure. Confirms continuous operation without faults
Friction loss is minimum. Ensures long life
Pneumatic cylinders confirm to ISO15552 Standard
Various levels of safety can be optionally installed. Rotex provides Highest safety for door systems
User friendly, can be installed at works easily, Rotex provides various assistance levels for aligning and fitments
The piston rod is of SS duly burnished
All products confirm to ARAI and other automobile standards
Toughened glasses ensure low risk to passengers
Aligning on a single rod to prevent misalignment of doors
Provided with internal rubber gasket for positive sealing
Cylinder links provided on swivel bearing, this avoids jamming of doors
Hinges made from bearing grade Polymers
Special profile rubber gaskets to increase sealing efficiency
Built in sensor in the rubber beading for human safety
Infra Red sensors for touch less operations…
Simple to install and easy to maintain
With positive sealing
Attractive appearance

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Floating Doors
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Works smoothly at rated pressure. Confirms continuous operation without faults.
Friction loss is minimum. Ensuring long life
Pneumatic cylinders confirm to ISO15552 Standard
The piston rod is of SS duly burnished
Various levels of safety can be optionally installed. Rotex provides highest safety for door systems
All products confirm to ARAI and other automobile standards
Doors available in MS as well as Aluminum sections
Toughened glasses ensure low risk to passengers.
User friendly, can be installed at works easily, Rotex provides various assistance levels for aligning and fitments.
Hinges made from bearing grade Polymers.
Special profile rubber gaskets to increase sealing efficiency,
Built in sensor in the rubber beading for human safety
Infra Red sensors for touch free operations…
Simple to install and easy to maintain

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Electrical Jack Knife Bus Door System
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Electric folding door mechanism is the technology introduced by Japan, a new improved driving mechanism for opening/closing by the folding door of buses. The benefits are - compact structure, fine performance and long life service . It also has anti-clamp feature to overcome the seizure of cylinder piston rod movement to water condensation in cold areas. This electrical door mechanism is ideal for buses with no air supply & have foldable doors.

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Ramp for Physically Challenged Passengers
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• Easy access & egress for physically challenged passengers
• Extremely robust and reliable construction.
• Automatic stoppage of system in case if overloaded during retraction
• Fully synchronized and interlocked with door system.
• Reliable extension and retraction performance, controlled by electricity or pneumatic power.
• Compact in size: The mechanism has the smallest thickness among the same products due to its unique articular driving system
• Strength of vehicle frame not affected due to Ramp fitment
• During operation, the movement of the ramp platform will be alarmed by chime and shining lamp
• The Ramp Platform operation will be indicated by Audio-Visual alarm (Chime & glowing light indication.
• The motor is protected against overload and overheat
• Unique Anti- skid Ramp surface

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Retractable Foot Step
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Rotex Retractable Foot Step is designed for high floor Buses. It is a new type of stepping structure with features such as Closeness to ground, safe, stable and reliable in service. It is installed on vehicle floor for passenger convenience. Step is retracted while bus is in motion. Control will be at drivers console and interfaced with door opening/closing A movable foot-step for a vehicle is operable by a mechanism including a guide device below the floor of the vehicle for extension of the step outside one side of the vehicle in an outwards/downwards movement and retraction in the opposite direction. The foot-step comprises a support structure over which an endless mat is stretched, and means for retaining a portion of the mat in the direction of movement of the foot-step, but not in the vertical direction.

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Anti Pinch Sensor ( PDV)
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Whenever there is any obstruction at the door, due to the difference of air pressure in the cylinders, the mechanical switch operates and that signal is sensed by the controller thus making the door retract automatically.

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5/2 Double Solenoid Valve
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Function : Drive the cylinder to open and close

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5/2 Push Pull Valve
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Function : Used to operate the cylinder manually

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3/2 Push Pull Valve
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Function : Used to cut off air supply.

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Strainer
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Function : It is fitted to the 3/2 push pull valve at the main air
cut off, for filteration of Air.

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Slow Start Valve
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Function : Used for exhausting the system pressure to open the door manually. There are two type of cover provided in which the emergency valve/switch fitted. This installed near the doors at outer side of bus.

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External Emergency Cover
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Function : Used for exhausting the system pressure to open the door manually. There are two type of cover provided in which the emergency valve/switch fitted. This installed near the doors at outer side of bus.

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Internal Emergency Cover
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Function : Used for exhaust the system pressure to open the door
manually. There are two type of cover provided in which the
emergency valve/switch fitted. This installed near the doors at
inner side of bus.

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3/2 Pilot Operated Valve
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Function : Used to maintain air flow in the system.

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Beeper with Indicator
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Function : During the door closing, the buzzer beeps to warn
the driver. And also in case of emergency the beeping
frequency changes to warn the driver.

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Air Wave Sensor
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Function : When there is any obstruction occurs to the door, air
pressure in the pvc pipe in the rubber strip of the door panel
will increase. As soon as the pneumatic sensor connected with
the pvc pipe senses the air pressure change in the pvc pipe, it
gives an electrical signal to the controller to retract the door.

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Door Operating Switch
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Function : These three switches are located on the dashboard in
the driver’s compartment. All switches are Rocker switches with
indicator type.

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5/2 Hand Lever Operated Valve
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Function : Used to operate the cylinder manually

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4/3 Rotary Hand Lever Operated Valve
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Function : Used to operate the door manually .

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Reed Switch ( Magnetic Sensor)
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Function : Used to operate the cylinder manually

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Controller
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Function: This is a microcontroller based and it controls the
entire operation and the safety features are inbuilt in the
circuit. The controller rating is 24V DC/55W/5Amp. Additional
provisions are being made for enhancing safety.

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Pneumatic Cylinder
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Function : Drive the door to open and close

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Human Sensor
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Function : It is object sensitive type. It is fitted on the mounting
plate with its sensor opening towards the floor of the bus. The
length of the sensing range according to requirement at the body
building end. The sensor is active when the door is in open
condition. During the door closing if somebody tries to get into or
out of the bus, it senses the person and gives signal to the
controller to retract the door.

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Air Filter+Regulator
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Function : By using this component we can control the door open/close operation smoothly. Sudden jerks can be avoided with
constant door operation timing irrespective of pressure variation at
the main air inlet also It provides the filtered air in the system .

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Dashboard Harness for Operating the Doors
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Function : These three switches are located on the dashboard in
the driver’s compartment. All switches are Rocker switches with
indication.

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Main Harness
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Function : These three switches are located on the dashboard in
the driver’s compartment. All switches are Rocker switches with
indication.

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