HA/STHA series bearing induction heaterDetailed product description：

HA/STHA series bearing induction heater (electromagnetic induction heater) parameters and performance

Model Project		STHA-1	STHA-2	STHA-3	STHA-4	STHA-5	STHA-6
rated power		2.2KVA	3.3KVA	5.5KVA	9KVA	12KVA	14KVA
Rated voltage		220V	220V	380V	380V	380V	380V
Rated Current		10A	12A	15A	20A	30A	135A
Control method		Hand control, temperature control, time control
Magnetic probe		have	have	have	have	have	have
Automatic demagnetization		automatic	automatic	automatic	automatic	automatic	automatic
Time display		have	have	have	have	have	have
Temperature digital display		have	have	have	have	have	have
Maximum heating temperature		300 ℃	300 ℃	300 ℃	300 ℃	300 ℃	300 ℃
Heating the workpiece	inner diameter	Ф30-70 ㎜	Ф70-100mm	Ф100-200mm	Ф60-250mm	Ф 80-360㎜	Ф180-400mm
	outer diameter	<Ф250 ㎜	<Ф360mm	<Ф440mm	<Ф480mm	<Ф510mm	<Ф530mm
	width	110 ㎜	115mm	140mm	180mm	200mm	220mm
weight		forty-five	55㎏	85㎏	120㎏	135 ㎏	150 ㎏
Demagnetization effect		Residual magnetism ≤ 1.0mT

List of attached yokes

model	Specification of yoke	Size (mm)	quantity	Scope of application (inner diameter of heated workpiece mm)
HA-1	fourteen	20 × 20	one	Ф30-55
	fifteen	40 × 40	one	Ф55-85
HA-2	eighteen	50 × 50	one	Ф70-85
	nineteen	60 × 60	one	Ф85-100
HA-3	twenty-two	70×70	one	Ф85-115
	twenty-three	80×80	one	Ф115-200

Note: For workpieces with an inner diameter exceeding 200mm, we accept user appointments and orders for a specially designed high-power heater.

3、 Application of HA/STHA series bearing induction heater (electromagnetic induction heater)
The HA/STHA series bearing heater is mainly used to heat various types of metal parts such as bearings, gears, bushings, shaft sleeves, diameter rings, pulleys, shrink rings, connectors, etc., and expand them through heating to meet the requirements of interference fit assembly.  
Advantages:
1. Save money and electricity by 90%, save fuel by 100%, and save 70% of the factory floor area
2. Save time, increase work efficiency by more than 4 times, and reduce the number of operators by 60%.  
3. Reliable and uniform heating, absolutely clean, conducive to improving assembly quality. 4. There is no fire hazard in terms of safety.  
5. Environmentally friendly oil-free gasoline pollutes the air, which is beneficial for environmental improvement and the health of workers.
4、 Structure of HA/STHA series bearing induction heater (electromagnetic induction heater)
The HA/STHA series bearing heater is installed on a handcart by combining the main engine and control box. It has a mobile structure, which is convenient for flexible application during on-site construction. The detachable yoke is directly used for threading bearings or heating other workpieces.
5、 Operating Procedure for HA/STHA Series Bearing Induction Heater (Electromagnetic Induction Heater)
1. Place the yoke on the end face of the host.
2. Insert the plug into a power outlet with a control switch.
3. Check if the grounding wire is in good condition, and test it with a measuring pen after powering on.
4. Press the start button to power on the host.
5. Check that there is no voltage between the yoke and the ground.
6. Press the stop button to power off the host and stop heating.
7. Select different yoke sleeves according to different specifications of bearings or other workpieces, and place the yoke on the top surface of the host, which should match and be flat.
8. When heating, the sensor should be inserted into the "sensing socket" and tightly attached to the heated workpiece.
9. When the bearing is heated to the desired temperature, it will automatically turn off the power or press the stop switch once.
10. After stopping heating, move the yoke to the left or right, remove the bearing, and then place the yoke back at the top of the main engine.
11. If the bearing is to be reused and heated continuously, simply insert the processed bearing into the yoke and press the start button.
6、 Precautions for HA/STHA series bearing induction heater (electromagnetic induction heater)
1. The grounding wire of the power supply must be in good condition.  
2. Before placing the yoke on the host, it is strictly prohibited to press the start button switch, otherwise it may damage the instrument or burn out the fuse.
3. The temperature of the ball bearing heater should not exceed 150 ℃. Otherwise, it will cause bearing annealing.
4. In order to improve heating efficiency, when selecting the corresponding yoke according to the size of the bearing inner hole, it is advisable to choose a yoke with a larger cross-sectional area as much as possible.
5. The host must be placed flat without tilting, and the yoke must match the end face of the host.
6. The heating components in the yoke can only be removed after the host is powered off.
7. When the bearing heats up, refer to the table below for the increase in aperture.