VVVF variable frequency control door machine system can freely adjust door machine running curve with safe operation and stable quality.

It does not affect good sleep and rest of your family because of low-noise traction machine design,triple car-wall noise-reducing design,running system noise-decreasing design.

It is most suitable for old-aged in your family because of smooth running system,the most comfortable speed operational curve,slow,soft & smooth start/stop.

Rich and colorful car combination satisfies your plural requirements.It brings about a freer and more flexible building space.