XIAN ATO INTERNATIONAL CO.,LTD |
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Disc Brake
Characteristics of our disc-brake device:
1.Number of service tongs and safety tongs are on an equal matching
according to number(same to 9000m,12000m rig),brake torque of
service tongs and safety tongs are meet requirement of max.brake
torque (more than the requirements stipulated in national
standard), as result,brake combined torque is much bigger,which
avoids accident taking place frequently caused by number lacking of
safety tongs (parking tongs) and small brake torque of safety
tongs.
2.By taking advantage of experience of abroad,electric ctrl
pneumatic valve is adopted to loop ctrl of electronic brake handle
in order to control hydraulic direction-changing valve to realize
working ctrl of brake tongs, which avoids liable valve blocked
accident caused by overheating from big electric-magnetic power of
hydraulic direction changing valve.
3.Dual fail-safe design is adopted in the ctrl loop of safety
tongs. Hydraulic direction changing valve is set as one opened and
one closed,that is to say,one for used the other for reserve
working together, which avoids valve blocked accident cause by
overheating and particle in the oil.
4.Equipped with hand pump, which can ensure brake-brake device
working at any time on the working condition without power and
pneumatic supply
5.Equipped with oil feeding and self-circulating filtration device,
which can reduce pollution of hydraulic system,and mostly reduce
breakdown.