Fido RH-M50 large rotary dampers with gear and gear rack provide infinite angle rotation, durability and high torque  for semi-automatic sliding doors which are mainly used for Homes & Offices and for uses. The semi-automatic sliding doors installed rotary dampers are strong and since years have proved to be simple but also an effective solution for doors. It is very reliable and ecofriendly to use. This type of door can be used in various types of openings that makes it an ideal solution for soft motion doors.