A: double limit switch : When one limit problem , the other limit
can be cut off the power,
more safety .
B:Gear chain break proof :could lock chain wheel to prevent the
door slipping when the
chain split unexpected.
C: Reduction gear box :With the gear wheel transmission , advanced
design ,operate
stable, bigger moment , lower noise , can be use 20.000times
D:The Characteristic for contorl part :Using the long life
contactor , with the advantage like :
energy saving, no quiver in the contact , no leakage magnetic, no
temperature rise , no
noise , no need maintain , suitable for operate frequency , can be
use more than 100,000
times .Besides with the lightning protection ,won't damage the
contactor when thunder.
E:The cover with the high intensity plastic and advanced
spray-paint craftwork , stand
erode, stand high temperature and moistureproof .
