Integrated VFD Motor

Integrated VFD PM Sync. Motors with Planetary Gearbox

Through continuous technological iteration, we integrate the VFD, gearbox, and motor into a single unit, which shortens drive section length, reduces support frames on the AFC transition and increases raw coal production capacity. 

• SMOOTH SOFT START&LESS IMPACT:
  Smooth soft start reduce mechanical shock on AFC and its chains. Starting current is limited to no more than 1.5 times the rated current, minimizing shock on longwall power grid and the AFC system, thereby extending service life of the equipment.

• EXCELLENT HEAVY-LOAD STARTING
  High starting torque, adjustable to various conditions, ensures smooth starting and stopping while reducing mechanical and electrical shock.

• SUPERIOR POWER BALANCE
  Adaptive multi-drive synchronization with less than 2% imbalance.

• PRECISE SPEED REGULATION
  Speed is continuously adjustable from zero all the way up to the rated speed.

• ENERGY CONSERVATION AND EMISSION REDUCTION
  Driven by the Integrated VFD Motor, the system achieves high mechanical transmission efficiency. Power factor of no less than 0.90, starting current limited to 1.5 times the rated current, resulting in over 20% energy savings.

• LOW MAINTENANCE
  Requires minimal maintenance itself, while also reducing wear on the AFC and chains. This leads to lower overall failure rates, reduced labor intensity, and simplifies maintenance procedures.

• HIGH INTELLIGENCE & AUTOMATION
  Enables data acquisition and centralized display, automatic tail-end tensioning, intelligent speed regulation, temperature and vibration monitoring, and remote data control.