Overhead Sectional Doors

Overhead Sectional Doors

Brief Introduction

The door panel move up during opening and eventually fully enter the overhead room along the tracks. The door panel does not fold or roll during opening. There are 3 types of overhead sectional doors according to the move direction.

The door panel moves along the horizontal tracks during opening, which is suitable for the door openings with small overhead room.

The door panel moves along the vertical tracks during opening, which is suitable for the door openings with enough overhead room.

The door panel moves upward along the vertical tracks for a while, and then move horizontally, which is suitable for the door openings with big overhead room.

Configuration and Work Principle


The door comprises 5 parts: 1?door system2?track system; 3?torsion spring balancing system; 4?sealing system;5?door opener system.


The surface panel is color steel and polyurethane composite board, with wrinkle/smooth surface upon request. The panel pressing shape could be in square, deep channel or shallow channel. The tracks are rolled from thick galvanized steel board. Sealing strip will be in EPDM rubber.




Thickness of the color steel sheet


Density of the polyurethane foaming


Brand of color steel sheet

From Baosteel

Heat transmission coefficient of insulation layer


Impact resisting


Length of the panel


Total thickness of the panel

42mm / 47mm

Height of each section of the panel


Weight of each set of door


Thickness of the galvanized steel sheet for tracks


Life of spring

30,000 times

Open/close speed

0.25 m/sec

Protection grade of control cabinet





Air tightness


Grade III

Water tightness


Grade III


Control could be manual, electrical, or through remote control. Pressure sensitive edge and infrared protection device are upon request


Daylighting windows could be installed upon request.




Product Origin: Shenyang
Model Number:  
Brand Name: Baotong

Contact Us

Company Name: Shenyang Baotong Door Co., Ltd.
Contact Person: Lisa Zhang
Address: No.7, Shiji Road, Hunnan District
Zip: 110179
Telephone: 86-024-23786011
Fax: 86-024-23786022
E-mail: sym094@163.com
Website: http://baotongdoors.tradeee.com

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