What is the different of 2 types automatic door motors?

What is the different of 2 types automatic door motors?

As we know that brushless dc motors are one of the most importante parts in automatic sliding door operator. There are 2 types of brushless dc motor for automatic sliding doors. Round motor and Square shape motor. So what is the differece between the 2 types of brushless dc motor? What are the advantage and disadvantage?
Square Shape
Advantage: Hanger can go through under the motor. It means the door can be open more widely about 20cm than round shape motor. So it is suitable for narrow entrance.
Disadvantage: The pull force is smaller than round motor.

Round Shape


Advantage: Pull force is better than square shape brushless dc motor. So it is suitable for large size door.
Disadvantage: Hanger can not pass through under the motor. So the opening width will be smaller than Square shpae motor.