This sectional door opener medium duty is mainly used in the industrial sectional door equipped with balance spring, but also can applied in lifting industrial door. The installation of door machine has two forms, shaft drive and chain drive. The factory standard configuration is shaft drive. If user want to adopt chain drive installation, they can choose the appropriate combination of sprocket chain according to the installation needs.

1. Check the door

2. Determine the installation position

3. Try to install industrial door operator

4. Pre-fixing industrial door operator

5. Find the direction of key slot

6. Mount flat key and fixing sleeve

7. Prepare wiring and debugging tighten all screws

• We are willing to develop all new material only if it's required in application.

• All our technology innovation only for one aim--- the best quality, even that means a higher cost and lower production rate.

• Our company uses the most advanced equipment to make the best quality products.

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We believe we could provide you with professional door and gate opener solutions and reliable service.