Shandong Weiterui Industrial Technology Co. , Ltd., brand WTR.WTR's existing product range covers power frequency electromagnetic induction heaters, medium and high frequency electromagnetic induction heating equipment. It can heat any metal material workpiece and can be customized according to needs.
Why Choose Us
Quality Assurance
Since its establishment, WTR has established and improved a scientific and standardized management system to ensure that the quality management system is in line with international standards. It has passed ISO9001 quality management system certification, international CE certification, energy conservation and environmental protection system certification, and electromagnetic induction heating products have passed the national demagnetization testing certification and temperature accuracy testing certification.
R&D Team
WTR has a doctoral research and development team of more than 30 people, and the chief heater engineer has 30 years of industry experience, designing various bearing heaters with international advanced levels. WTR always adopts innovative processing technology and stands at the forefront of the industry. Combining years of industry experience, we ensure to provide customers with more advanced and high-quality products.
Product Application
The product can according to the customer's heating needs to develop professional and perfect heating schemes, widely used in new energy, wind power, cement, mining, papermaking, metallurgy, transportation and other industries, perfect realization of hot sleeve hot disassembly, special-shaped workpiece local heating, preheating before welding, hydrogen removal after welding, rapid assembly of automatic assembly line and other process requirements.
Excellent service
WTR insists on putting customers at the center, starting from their perspective, solving problems for customers as the core, providing free solutions, one-on-one services, and solving customer problems 24 hours a day.
Types of Middle Frequency Induction Heater
Intermediate Frequency Induction Heater Series
The medium frequency induction heating series is mainly used for post weld heat treatment, pre weld preheating, post weld hydrogen removal, coupling disassembly and installation, and installation and disassembly of large gear bearings.
Water Cooled Medium Frequency Induction Heater
Water cooled medium frequency induction heater Medium frequency water-cooled heater, using water circulation heat dissipation method for heating, has the advantages of fast heat dissipation and fast heating rate.
Intermediate Frequency Electromagnetic Induction Heater
Intermediate frequency electromagnetic induction heater is a safe and cost-effective heating method that improves the quality of an installation or repair. It is fast, simple and energy efficient compared to conventional methods.It easier and faster to transfer effective energy in the workpiece.
Air Cooling Induction Heating Machine
The WTR medium frequency Air cooling induction heating machine is a safe and economical heating method that improves the quality of installation or maintenance. Compared with the traditional method, this method is fast, simple and energy saving. Intermediate frequency technology makes it easier and faster to transfer effective energy through the workpiece.Welcome to contact us.
1. The workpiece does not need to be heated as a whole, but can be selectively heated locally, with less power consumption and less deformation of the workpiece.
2. The heating speed is fast, which can make the workpiece reach the required temperature in a short time, and the heating speed is uniform. The surface oxidation and decarburization of the workpiece are lighter, and most workpieces do not need gas protection.
3. The medium frequency induction heating equipment adjusts the working frequency and power of the equipment as needed to regulate the surface hardened layer.
4. The workpiece after heat treatment by induction heating has a thicker tough area under the surface hard layer, which has better compressive internal stress, and the fatigue resistance and breaking capacity of the workpiece are higher.
5. It is easy to install on the production line, easy to realize mechanization and automation, easy to manage, can reduce transportation, save manpower and improve production efficiency.
6. One machine can be used for multiple purposes - it can complete heat treatment processes such as quenching, annealing, tempering, normalizing, quenching and tempering, as well as welding, smelting, thermal assembly, thermal disassembly and diathermy forming.

Specification
|
Input voltage |
Three phase 380V/50-60Hz |
|
Input current |
450A |
|
Output power |
300KW |
|
Oscillation frequency |
2-10KHZ |
|
Load rate |
99% |
|
Cooling water pressure |
0.25MPa |
|
Cooling water flow |
≥25m³/H |
Components of an Induction Heater

Induction Coil
This is a coil of wire through which the high-frequency AC passes. It generates the magnetic field required for induction heating.
Power Supply
The power supply provides the necessary high-frequency AC to the induction coil. The frequency and power output can be adjusted as needed for specific applications.
Work Coil
The work coil is the part of the induction heater that is in close proximity to the object being heated. It is designed to efficiently transfer the magnetic field to the object for heating.
Cooling System
Induction heaters generate heat, so they require a cooling system to prevent overheating of the components, especially the induction coil.
Applications of Medium Frequency Induction Heating Machine
Heat treatment
Quenching and annealing of mechanical metal parts (surface, inner hole, part, whole) such as automobile and motorcycle parts and internal parts.
01
Diathermic forming
Round steel with a diameter of less than 100mm, heating the metal material for stretching, shaping, embossing, etc.
02
Quenching
Suitable for φ100-φ250mm steel bars, quenching depth 3.5-6mm.
03
Welding of various hardware tools
Welding of diamond tools, picks, grinding tools, drilling tools, alloy saw blades, carbide turning tools, milling cutters, reamers, planers, woodworking drills, etc.
04
Technical Parameters
|
Model |
Power |
Voltage |
Frequency |
Weight |
Host size |
Vice size |
|
MF-25KW |
25KW |
3Phase*380 V |
1-10KHZ |
40KG+35KG |
640*280*550mm |
510*260*410mm |
|
MF-45KW |
45KW |
3Phase*380 V |
1-10KHZ |
55KG+45KG |
780*370*620mm |
560*295*470mm |
|
MF-70KW |
70KW |
3Phase*380 V |
1-10KHZ |
80KG+60KG |
725*600*900mm |
670*420*500mm |
|
MF-90KW |
90KW |
3Phase*380 V |
1-10KHZ |
90KG+65KG |
750*600*900mm |
670*420*500mm |
|
MF-110KW |
110KW |
3Phase*380 V |
1-10KHZ |
100KG+65KG |
1000*600*900mm |
700*420*600mm |
|
MF-160KW |
160KW |
3Phase*380 V |
1-10KHZ |
120KG+75KG |
1000*600*900mm |
700*420*600mm |
|
Note: The specification parameters will be adjusted due to different workpieces heated and processes. |
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Packaging and delivery
|
Selling Units |
Single item |
|
Single Package Size |
900X800X860 cm |
|
Single Gross Weight |
90.000 kg |
Other Services




Sample
Some Sample is Free, but the air freight is collect or you pay us the cost in advance.Some sample require payment at lowest price ,if need sample pls contact us.
MOQ
The MOQ is 1 pcs; For some products we have in stock, the MOQ is 5 pcs.
OEM
You can send your own design of product and LOGO, we can open new mold and print or emboss any LOGO for you.
Payment term
T/T 30% deposit & T/T70% before the delivery or against copy of B/L, L/C
Free test + Free Plan +365 days warranty
In order to help you use our bearing heaters easily, our company provides the following after-sales services for product maintenance.
- Product warranty (starting from the day the heater arrives at the customer) is 1 year;
- The temperature sensor is a wearing part and is not covered by the warranty.
- During the warranty period, if any machine quality problems occur under correct operation, we will provide free repair services, except for human factors. Please keep your purchase invoice (without changes) as proof of maintenance. If the warranty period is exceeded or the damage is caused by wrong human operation, maintenance fees will need to be paid.
- We will provide lifetime maintenance services for the products sold and ensure that machine parts are always provided at preferential prices.
- We can provide pre-use technical guidance and operational training videos according to customer needs, including relevant maintenance information.
Technical support methods
- Telephone technical support
- Spare parts replacement service
- One-to-one service
The warranty does not apply to the following situations
Including but not limited to problems caused by the following reasons: external force (violence), power supply, harsh environment, accident, misuse, unauthorized repair by the supplier, failure to use instructions, failure to perform necessary maintenance and use of components not provided by the supplier . If it is caused by one of the above reasons, the customer will be charged labor fees, spare parts fees and other related fees.
Certificate




FAQ
Shandong Weiterui Industrial Technology Co., Ltd. is one of the most experienced and professional manufacturers and suppliers of middle frequency induction heater in China, now brings you the best quality bearing heaters with discount price. Please rest assured to buy the quality and durable middle frequency induction heater made in China here from our factory.
Intermediate Frequency Induction Heater Series
























