☘【Safety In Use】- It has the characteristics of slow heating, stable startup, high safety, waterproof, explosion-proof, etc. The thrust of the motor can be adjusted during operation to prevent the motor from overloading, thereby protecting the motor. When the temperature is too high, the motor will automatically cut off the power supply to protect the motor. ☘【Anti-impact Stroke Design】- When the door body reaches the stroke, you can only press the button in the opposite direction to operate the motor to prevent the stroke. ☘【Time Ajustable】- The automatic closing time can be adjusted to 5 seconds, 10 seconds, and 20 seconds. Avoid long-term operation of the motor when the stroke fails. The default time of the motor is 90 seconds, which can be adjusted by itself. ☘【Multi-application】- Suitable for all types of sliding doors, very suitable for driveway doors made of steel, wood, vinyl, as well as tubular, panel and chain link shapes. Typical applications include residential, commercial and courtyards. Contains complete installation hardware and easy-to-follow instructions, easy DIY installation with common tools, no additional soldering required. ☘【High Movement Speed】- This powerful sliding door opener is equipped with a pure copper motor and a stable base, ensuring the door opens and closes smoothly at a high speed of 12 meters per minute (39 feet per minute)., Weight: 48.171004247 Pounds, Manufacturer: Lfhelper