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Permanent Magnet Motor Built-in Type Mine Hoist


The successful development of the permanent magnet built-in type mine hoist completely subverts the traditional hoist, made of the principle of the drum, as the outer rotor of perm-anent magnet motor, the working winding coil is installed in the stator. The permanent magnet built-in type mine hoist is manufactured by multi-stage, rated frequency of 10Hz low frequency permanent magnet synchronous motor, and then use the low frequency inverter for speed regulation. Compared with the traditional hoist, the permanent magnet built-in type mine hoist has broken through a number of key technologies, leading the international product technology; advantages of traditional hoist cannot be compared.

Contrast Advantage

Example: JK-3*2.2P, vertical shaft deep is 500m, at the speed of 3m/s, the load of 135KN, the voltage is 660V, with four-quadrant converter.

Contrast content
Model of Permanent Magnet Motor Built-in Type Mine Hoist: JKN-3*2.2P
Model of Traditional Type of Mine Hoist: JK-3*2.2P
Conclusions
Motor Power
405KW
450KW
Down 10%
Full-load Current
376A
559A
Down 33%
Overall Efficiency
95%
77%
Up 23%
Power factor
0.99
0.8
Up 24%
Energy Saving
It consumes 16.3 KWH to complete a lifting (full load) and a lowering (no load) process
It consumes 22.3 KWH to complete a lifting (full load) and a lowering (no load) process
Energy saving 37%
Noise
About 65db
About 85db
Low noise
Total Weight
47 ton
55 ton
Down 15%
Area Covered

56㎡

80㎡

Basic investment reduced by 30%


Install
3 Days
5-7 Days
Greatly shorten the construction period, saving materials and labor
Maintenance
Maintenance-free
Check the accelerator and coupling regularly, change gear oil, consume material and manpower
Save materials and labor
Security
Even if the brake fails, it can slow down and prevent galloping
Safety brake failure can lead to gallop
Enhanced security
Speed Precision
0.003-3m/s
0.3-3m/s
Up to 100 times