Shandong Weiterui Industrial Technology Co., Ltd. is one of the leading manufacturers and suppliers of big induction heater in China. Welcome to buy high quality bearing heaters made in China here from our factory. Please be free to enjoy our discount price and good service.
Big Induction Heater
Customer workpieces: large bearings and irregular workpieces;
Customer workpiece size: maximum outer diameter 700mm, minimum inner diameter 80mm, maximum width 250mm;
Customer requirement: Heating to 110 degrees within 30 minutes without damaging the workpiece, with automatic demagnetization;
Our solution process: come up with a solution within 24 hours and communicate with the customer to complete it, perfectly solving the customer's problem.
Customer on-site pictures
How WTR ensures quality about Induction Heater
1.High production standard
Acquisition the certificates of ISO9001,CE,EMC,FCC,National Demagnetization Test Report,National Temperature Accuracy Report,Product Liability Insurance Certificate.
2.High-quality raw materials
(1) Military standard high silicon silicon steel sheet (thickness 0.35mm): good magnetic permeability, increasing heating efficiency by 300%.
(2) High-quality pure copper induction coil, more insulated and heat-resistant.
(3)Well-known brand electrical parts:Schneider.
3.High performance
(1)Dual control of time-temperature mode：Time Control: 0-9999seconds&Temperature Control: 0-300℃.
(2)Microcomputer control:It's more easier to operate.
(3)Really achieve automatic demagnetization:<2A/CM. (Please refer to the attached demagnetization test report).
4.Multiple protection to ensure personal safety
(1) The fully enclosed insulated coil reduces the risk of exposure of the coil and protects personal safety more effectively;
(2) Multi-layer non-alkali fiber tape is wound, and grade F epoxy resin insulating paint is selected, which is safer with multiple protections;
(3) Special processing technology minimizes radiation and noise, ≤75 db.
Product details
Product parameters
| MODEL | POWER | MINIMUM INNER DIAMETER |
MAXIMUM OUTER DIAMETER |
MAXIMUM WIDTH |
TEMPERATURE CONTROL |
TIME CONTROL |
MACHINE WEIGHT/SIZE |
| WTR-HOR160-4 | 16KVA | 50mm | 600mm | standard:240mm customized:350mm |
K-type sensor;300℃ | 0-9999s | 370KG/1700*600*920mm |
| WTR-HOR250-4 | 25KVA | 80mm | 800mm | 250mm | K-type sensor：300℃ | 0-9999s | 300KG/1400*600*914mm |
| WTR-HOR350-4 | 35KVA | 90mm | 900mm | 300mm | K-type sensor：300℃ | 0-9999s | 380KG/2210*600*914mm |
| WTR-HOR500-4 | 50KVA | 120mm | 1000mm | 300mm | K-type sensor：300℃ | 0-9999s | 1800*700*1100mm |
| WTR-HOR650-4 | 65KVA | 160mm | 1200mm | 300mm | K-type sensor：300℃ | 0-9999s | 600KG/2300*900*1041mm |
| WTR-HOR800-4 | 80KVA | 210mm | 1400mm | 300mm | K-type sensor：300℃ | 0-9999s | 2116*777*1155mm |
FAQ
Q: How to achieve automatic demagnetization of bearing heaters?
1.Demagnetization principle
The residual magnetism of the fully automatic bearing heater is caused by an alternating magnetic field. At the end or after heating, by gradually reducing the induced current, the magnetic field strength gradually decreases, and the magnetism on the bearing also decreases until the current is zero, and the residual magnetism on the bearing is also zero. This is the basic principle of demagnetization, and various demagnetization devices are designed based on this principle.
2.Automatic demagnetization process
Heating process:
Generate an alternating magnetic field using alternating current.
The alternating magnetic field generates eddy currents in the bearing, causing it to quickly heat up.
During the heating process, users can set the heating time and temperature as needed.
Demagnetization operation:
When the set heating time or temperature is reached, the heater will automatically stop heating.
Subsequently, the heater will enter the demagnetization stage. At this stage, the induced current will gradually decrease, causing the magnetic field strength to gradually decrease.
The demagnetization working time is usually 3-4 seconds, at which point the red light will light up, indicating that both heating and demagnetization are completed.
Subsequent actions:
After the heating demagnetization is completed, the user can move the car, remove the core column, and then remove the workpiece for installation.
If it is necessary to heat to above 300 ℃, the time heating mode can be used to continue heating, but it should be noted that the maximum temperature of the temperature probe is 300 ℃, and the heating limit temperature of the heater can reach 380 ℃.
3.Precautions
During the heating and demagnetization process, the stability and safety of the heater should be ensured.
The maximum load-bearing capacity of the heater should be determined according to the specific model and specifications to avoid overloading.
If it is necessary to stop heating during the heating process, the stop button should be pressed and held for a certain period of time (such as 3 seconds) to ensure that the heating and demagnetization processes are completely completed.
In summary, the bearing heater achieves automatic demagnetization by controlling the change of induced current, ensuring that the bearing will not have residual magnetism after heating, thereby ensuring the quality of subsequent assembly and use.
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