Electronic limit, absolute value, precise positioning, commissioning limit only need to operate in the controller, and debugging time can save data than general limit.
low noise, electronic limit use 7 level precision gears, abrasion less, higher performance, lower noise and prolong use life.
Safety brake, accurate limited control positioning, with double limit switch protection, prevent door over roll- up. make dimension of Rolling door opener bracket systerm according to your rquest, brake systerm build in the bracket systerm.