
Grizzly SAFE-GLIDE™ concept
SAFE-GLIDE™ system is one of the main concepts of the Grizzly design principle. It provides the safest door operating environment, offering pedestrians the best prevention of door collision (Auto Reverse System).
▢ Full Range Reverse
The doors will return to the open position no matter where they encounter an object (larger than the closing gap of 1.5cm/leaf), and will re-close at speed 12cm/sec/leaf after 20 seconds.
▢ High Sensitive Reverse
The doors will re-open when detecting low catchments force from 6 to 12 kgf at closing speed 12cm/sec. (measured by PUSH-PULL SCALE)
AUTO REVERSE
Grizzly Durable Stainless Steel Rail
The stainless steel rail (obtained multinational patents) is highly resistant to damage and abrasion caused by everyday use, and can withstand the heavy load of doors as well as the friction between the roller and track in long-term usage.
Grizzly Self-cleaning Mechanism
The hanger block is equipped with a plastic brush (obtained multinational patents) which cleans the rail during each opening and closing in order to keep the rail and guiding wheel free from dust and dirt. This consequently prolongs the life of the door even in the dustiest environments.
GS45A / 2
Advanced Technology & Advantages With Peculiar Design
Grizzly Closed Loop Servo Control System
The Grizzly Closed Loop Servo Control System has high sensitivity which can detect minute changes occurring in the operation and provide adequate feedback control: For example, with a strong wind, the air pressure will slow down the door’s moving speed; at this moment, the Closed Loop Servo Control System will transmit a signal to slightly increase the motor power in order to maintain the prefixed operating speed.
Repeated operation of the door could cause temperature rise and damper decrease in the motor, which could potentially cause the system to loose control of the closing speed of the door. Through the Closed Loop Servo Control System, however, the door can monitor the speed of the motor to ensure the stable operation of the doors, avoiding any possible defective situation and door collision.
▢ Traditional open loop system (semi-computerized control)
Diagram: Control Panel ➔ Output signal ➔ Motor
▢ Brand new closed loop servo control system (fully computerized control)
Diagram: Control Panel ➔ Compensated signal ➔ Motor ➔ Feedback signal ➔ Control Panel
Electronic Motor-Lock
Electronic Motor-Lock (optional) is directly driven by the control panel, to lock the door when desired. Unlike the traditional mechanical lock, the electronic motor-lock can avoid noise when the door is locked as well as mechanical abrasion from frequent operation in daily use, providing a durable and reliable security system for automatic doors.

Door Lock Signal Diagram
Control Panel ➔ Door Lock Signal ➔ Motor ➔ Door ➔ Lock Mode ➔ Control Panel
Special Features of the Hanger Block
▢ Double bearing mechanism
The Hanger Block with twin rollers is capable of reducing the bearing friction and loading in door movement. In case the door is bumped, each roller has two bearings to withstand lateral pressure, keeping the door in normal operation.
(Diagram label: Each roller has two bearings)
▢ Adjustable carriage mechanism
The hanger block is designed in two parts that can be flexibly raised a few centimeters in order to adjust the door height. By unscrewing the two screws of each carriage, the door is allowed to easily slide upwards and downwards to adjust its height to fit the installation environment. For a bi-parting door system, furthermore, the mechanism can adjust the gap between doors by simply aligning the carriage to ensure the perfect fitting of the two frames.
▢ Automatic Balance Mechanism
The seesaw roller, on the back of the hanger, can immediately self-adjust to maintain balance in door operation. One of the rollers is always assured of attachment to the track to prevent the door from derailing.
(Diagram label: Self-balance mechanism)







