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How to choose a proper induction heating machine for your heating projects?
Author:Hitfar Induction
How to choose a proper induction heating machine for your heating projects?
Please follow the below principles:


Induction Heating type Application ranges of workpieces How to choose frequency of induction heating machine How to choose power of induction heating machine
Metal parts diathermanous induction heating Fasteners, standard parts, auto parts, hardware tools, rigging, hot rolling of twist drills, etc. Principle: The larger the diameter of the workpiece, the lower the frequency should be. Such as:
Φ20 or more, medium frequency (1-20KHZ)
Φ5-20, high frequency induction heating amchine (20-100KHZ)
Below Φ5, UHF induction heater (100-500KHZ)
According to the production efficiency, choose the right power, the higher the power, the faster the speed. Specific can consult the company's technical staff.
Induction Heating treatment Shafts, gears, sprockets, machine tool rail accessories, metal wire annealing, hydraulic fittings, auto parts, knife and pliers, stainless steel pot annealing, etc. Principle: The shallower the hardened layer is required for the workpiece, the higher the frequency should be. Such as:
1mm or less, UHF 100-500KHZ;
1-2.5mm, high frequency 20-100KHZ;
2.5mm or more, medium frequency 1-20KHZ
Combined with the shape of the workpiece, quenching method, quenching hardness, hardened layer requirements and materials, etc., you can consult the company's technical staff.
Induction heating brazing and welding Hybrid welding of different materials such as drill head, turning tool, reamer, milling cutter, drill bit, etc. Principle: The larger the welding volume, the lower the frequency should be.
For tools with a volume less than 30*30*30, high frequency can be used;
More than 30*30*30, application IF
It depends on the specific workpiece shape, material, solder, etc.
Induction melting & smelting Precious metals such as gold, silver, copper and lead Medium frequency, small capacity optional high frequency According to the furnace and production efficiency specific.
Induction hot fitting & hot forming bending Aluminum-plastic pipe, steel-plastic pipe, cable, wire heating film; aluminum foil sealing used in food, beverage, pharmaceutical industry.  
Depending on the circumstances
Depending on production speed, material, temperature.

Special functions and supporting equipment Such as dual-frequency equipment, multi-load matching type (double head, multi-tap), automatic control type, one to two, bridge oil pipeline elbow, constant power constant current, soft connection sensor.
high frequency induction heater


Testing standard for our high frequency and medium frequency induction heating equipment as below:

No. Standard Number Standard name Substitute standard number Adopt international standard number
1 GB/T17195—1997 Industrial furnace terminology    
2 GB/T2900.23—2008 Electrical terminology GB2900.23-1995 IDT IEC60050-841(2004)
3 GB5959.1—2005 Safety of electric heating devices - Part 1: General requirements GB5959.1-1986 IDT IEC60519-1(2003)
4 GB5959.3—2008 Safety of electroheat installations - Part 3: Particular requirements for induction and conductive heating devices and induction melting devices GB5959.3-1988 IDT IEC60519-3(2005)
5 GB5959.8—2007 Safety of electroheat installations - Part 8: Particular requirements for electroslag remelting furnaces GB5959.8-1989 IDT IEC60519-8(2005)
6 GB5959.9—2008 Safety of electric heating devices - Part 9: Particular requirements for high-frequency medium heating devices GB5959.9-1989 IDT IEC60519-9(2005)
7 GB5959.11—2000 Safety of electric heating equipment - Part 11: Particular requirements for electromagnetic stirring, conveying or pouring equipment for liquid metal   IDT IEC60519-11(1997)
8 GB/T10066.1—2004 Test methods for electric heating equipment - Part 1: General part GB/T10066.1-1988 MOD IEC60398(1999)
9 GB/T10066.2—2004 Test methods for electric heating equipment - Part 2: GB/T10066.2-1988 MOD IEC60396 (1991)
10 GB/T10066.3—2004 Test methods for electric heating equipment - Part 3: GB/T10066.3-1988 MOD IEC60646 (1992)
11 GB/T10066.31-2007 Test methods for electric heating devices - Part 31: Determination of output power of generators   IDT IEC61922(2002)
12 GB/T10066.8—2006 Test methods for electric heating devices - Part 8: Electroslag remelting furnace GB/T1020-1989 IDT IEC60779(2005)
13 GB/T10066.9-2008 Test methods for electric heating devices - Part 9: Determination of output power of high-frequency medium heating devices GB/T14809-2000 IDT IEC61308 (2005)
14 GB/T10067.1—2005 Basic technical requirements for electric heating devices - Part 1: General part GB/T10067.1-1998  
15 GB/T10067.3—2005 Basic technical requirements for electric heating devices - Part 3: Induction electric heating devices GB/T10067.3-1988  
16 GB/T 10067.31-2013 Basic technical requirements for electroheat installations - Part 31: MF centerless induction furnace    
17 GB/T 10067.32-2013 Basic technical conditions of electroheating devices - Part 32: Complete sets of voltage-type variable frequency intermediate frequency centerless induction furnaces    
18 GB/T 10067.42-2013 Basic technical requirements for electric heating devices - Part 42: Push-type electric resistance heating units    
19 GB/T10067.5—1993 Basic technical conditions of electric heating equipment    
20 GB/T13324—2006 Heat treatment equipment terminology GB/T13324-1991  

medium frequency induction heating machine for rod heating


Induction heating equipment warranty description
In order to protect the interests of users, the company provides warranty and repair services for the products sold.
1, all products are quality problems, the company's free warranty within one year.
2, induction ring, foot switch, filter and other random accessories, is not covered by the warranty.
3. If the equipment is damaged due to improper use or man-made by the user, the company will charge a maintenance fee.
4. For the convenience of users, the company provides various accessories for users who use this product. Users can contact us by letter or call.
5, user maintenance, purchase of accessories, etc., please pre-paid back postage, the warranty of the equipment, return postage is the responsibility of the company.
6, warranty: no charge;
Maintenance: Charge 50-100 yuan repair fee, postage fee paid, replacement part part of the cost, the number on the equipment should be kept in order to find the factory date, no number is regarded as the equipment outside the warranty period.
7. The company provides long-term maintenance services for its products.
● To protect your interests, be sure to ship your warranty when your equipment is covered by the warranty.
induction furnace for melting metal like copper, gold, silver, aluminum, zinc, steel, stainless steel etc.

Hitfar Power Technology Co., Ltd.

Lianhu Industrial Zone, Tangxia,Dongguan, China

Technial Support:HITFAR INDUCTION