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Ivy Machinery (Nanjing) Co., Ltd.

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SG400 Automatic Bus Door System Internal Swing Pneumatic Cylinder Control

SG400 Automatic Bus Door System Internal Swing Pneumatic Cylinder Control

SG400 Automatic Bus Door System Internal Swing Pneumatic Cylinder Control

Product Details:

Place of Origin: JiangSu Nanjing
Brand Name: IVY
Certification: TS16949
Model Number: SG300

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: Export Standard Packing
Delivery Time: 7-10days
Payment Terms: T/T
Supply Ability: 3000 sets per Month
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Detailed Product Description
Design: Free Safety Feature: Sensitive Edge
Open Time: 3-5seconds Customer: Volvo, Yutong, Higer
Name: SG400 Internal Swing Pneumatic Cylinder Control Automatic Bus Door System With Antipinch Funtion Material: Aluminum

Product Name: SG400 internal swing pneumatic cylinder control Automatic bus door system with antipinch funtion


1. Application :


City bus is the bus door control system mainly used as the transit bus door . with reasonalble structure, beautiful shape, easy to install, door opening and closing more safety and relaible.


2. Features:

Beautiful and neat appearance

Smooth, rapid operation

Limited protrusion outside of vehicle

Door panels may be flat or moderately contoured

Clear passenger path


3. Parameters :

Operation Temperature -40° C - 80° C
Operation Pressure 90-125 psi
Operation Voltage DC12V or DC24V
Door Life Cycle times 1, 000, 000
Door closing or opening time 3-5 seconds
Door opening way swing in
Door panel Single or Double Swing in panel



Bus door mechanism structure: shaft and arm install inside of the bus body or outside of bus body.

Bus door panel: bus door panel with brush or bus door panel with dropflap

AAnti-clamping:Air bag anti-clamping and electric anti-clamping


4. Working Principle :


This swing in peumatic bus door mechanism uses a pneumatic cylinder to realize close and open actions of bus door through a single piston rod and a crankpin system. Each bus door panel is controlled by the separate cylinder; the bus door swinging speed could be adjusted; the bus door is also equipped with cushioning function during bus door opening and anti-clamp function during bus door closing.


The movements of the cylinder are controlled by solenoid valve, which could easily change its working conditions when the power is on. When the bus door is under opening or closing conditions, it is unnecessary to supply the power for the solenoid valve.


During closing action of door, if bus door movement is interrupted by somebody or something, the control box shall work to change the working condition of solenoid valve to open the door.


5. Packing : 


Packing with boxes then into wooden case or steel cage


SG400 Automatic Bus Door System Internal Swing Pneumatic Cylinder Control


Contact Details
Ivy Machinery (Nanjing) Co., Ltd.

Contact Person: Warren Wang

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Ivy Machinery (Nanjing) Co., Ltd.
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