Electromagnetic Induction Heater

• Using frequency conversion technology, faster heating rate, higher heating efficiency, power factor is 0.9, the conversion efficiency up to 95%;
• Change the heating coil is available; installation and removal just need one heater.

• Small size, net weight is light(9kg);
• Suitable for fan site maintenance, easy to carry, large output power.

The device heating under the collar can be heated to 120℃ in 2 minutes, removal or installation requirements.

Note: If use 30 KVA power frequency heater, heating time is about 5 minutes. KET-RMD-300P model:

• Three control ways: timing, constant temperature, constant temperature and timing at same time;
• Support 1-4 temperature monitoring and control, and can set the temperature difference between the maximum temperature point and the minimum temperature point, so that ensure the rapid heating and heated evenly of bearing.

The device heating under the collar can be heated to 120℃ in 5 minutes, removal or installation requirements.

Note: If use 60 KVA power frequency heater, heating time is about 8 minutes. Rotating frame heating of wind power generator:

Apply to frequency induction heater just need ten minutes to finish the heating, heating speed is rapid, high efficiency and energy conservation. KET-RMD-500P model:

• Three control ways: timing, constant temperature, constant temperature and timing at same time;
• Support 1-4 temperature monitoring and control, and can set the temperature difference between the maximum temperature point and the minimum temperature point, so that ensure the rapid heating and heated evenly of bearing.

The device heating under the collar can be heated to 120℃ in 7 minutes, removal or installation requirements.

Note: If use 100 KVA power frequency heater, heating time is about 9 minutes.

Main spindle on high power direct drive fan integrates roller, in general, need to center before heating and installation, that means keep the axis lines of two inner rings in one line, after centering need to tighten inner and outer rings of bearing, at this time, what differs from other general bearing is no clearance between the outer ring and the bearing, therefore heating bearing inner ring only is not enough to avoid stress damage. Heating inner ring and outer ring of bearing at the same time, to achieve being heated evenly, then damage can be avoid. The device also supports removal function, the removal steps as follows:

• Heat upper inner ring of bearing , remove inner ring after heating is completed;
• Keep the outer ring , roller and lower inner ring integrated, continue to heat the lower inner ring;
• After lower inner ring heating is completed, remove the under inner ring by hydraulic cylinder or others assistant tools.