IGBT High Frequency Induction Heating Machine for Hardware Metals Processing (SF-40KW)

Product Description

IGBT High Frequency Induction Heating Machine for Hardware metals Processing (SF-40KW)

  Induction heating is a process which is used to bond, harden or soften metals or other conductive materials. For modern manufacturing processes, induction heating offers an attractive combination of speed, consistency, control and energy efficiency.
When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. According to Faraday's Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced.
In a basic induction heating setup, a power supply sends an AC current through an inductor (often a copper coil), and the part to be heated (the workpiece) is placed inside the inductor. The inductor serves as the transformer primary and the part to be heated becomes a short circuit secondary. When a metal part is placed within the inductor and enters the magnetic field, circulating eddy currents are induced within the part.

Applications:

1.Induction heat treatment : 
A: Surface Hardening (Quenching): By rapidly heating a metal surface and then immediately cooling it, induction hardening creates a hard, wear-resistant outer layer while keeping the core tough and ductile. This is widely used for gears, shafts, crankshafts, and various tools.
B:Annealing and Tempering: Annealing softens metals to improve their machinability or relieve internal stresses, while tempering reduces brittleness after hardening. Induction heating allows for precise local annealing of parts like stainless steel strips or specific sections of a component.
2.Heating for Forming:
A:Hot Forging and Forming: It heats metal billets or workpieces to a temperature where they are plastic enough to be forged into shapes (e.g., hand tools, automotive parts, fasteners) using presses or hammers.
B:Hot Fitting: This involves heating a metal part (like a bearing) so that it expands, allowing for easy assembly onto another component. Upon cooling, the part contracts, creating a tight interference fit
 

3.Welding/Soldering /Brazing ...

A:Brazing and Soldering: It melts a filler metal (solder) that flows into the gap between two close-fitting parts, creating a strong joint. This is common in plumbing, electrical work, and automotive manufacturing for joining components like copper pipes or carbide tips to tools.
B:Shrink Fitting: Similar to hot fitting, this application uses heat to assemble or disassemble tightly fitted parts like bearings, gears, and railway wheels.
4.Metal Melting:
Smelting and Foundry: Induction melting is efficient for melting everything from iron and steel to copper, aluminum, and precious metals . It offers advantages like minimal melt loss, precise temperature control, and the ability to stir the molten metal for uniform alloying.
5.Other Specialized Applications:
Induction Sealing: This is used in the food and pharmaceutical industries to hermetically seal containers by heating a thin aluminum foil liner under the cap.
Plastic Processing: Induction heating is used in plastic injection molding machines to heat the barrel directly, reducing warm-up times and energy consumption 

1

2

3

Technical Specifications of Induction heating machine SF-40KW

(Custom configurations available upon request.)

Model	SF-40KW
Work Power	3*380v/415v/440v/480v  50-60hz
Output power	40KW
Input current	60A
Fluctuating frequency	20-50khz
Water temperature protection point	40 centidegree
Weight	Mainparts:53Kg    Transformer:51kg
Size	Main Parts:600*350*600MM Transformer: 550*300*500MM

Simple Installation Diagram

Company Profile

OURUIDA CO.,LTD (Foshan Sinfor Electro-Mechanical Equipment Co.,LTD )

Our Factory was established in Foshan in 2000. We are a manufacturer specializing in researching, developing, manufacturing, and marketing induction heating machines and melting furnaces, air-cooled water chillers, induction hardening machine tools, and PLC/CNC machine tools with high quality, fast shipping, and good after-sales service.

The photos of Customer visiting our factory 

Feedback from customers regarding our products

From outstanding reliability: Customers have confirmed that our equipment can withstand the rigorous tests of 24/7 continuous production, with stable performance.
Extremely high customer satisfaction: Evaluations such as "Best Purchase" and "Very Satisfied" are the highest recognition of the value of our products.
Continuous partnership: Based on the excellent experience of the first purchase, customers have clearly expressed their intention to make another purchase, which demonstrates deep trust

After Sales Service

Pre-sale service:
1. recommend the most suitable machine for customers, according to their requirements. 
2. Inquiry and consulting support. 
3. Sample testing support. 
4. View our Factory.

In-sale service:
1. Strictly manufacture the machine, according to relevant technical standards.
2. Take run test, according to relevant equipment test run regulations.
3. Strictly check up the machine, before delivery
4. Delivery on time.

After-sale service:
1. Warranty time: Within 18 months from the date of delivering, 12months from date of receiving.
2. Within warranty all parts are free for customer, any fault caused by non-artificial reason, any quality problems such as design, manufacture, or procedure occurs, We shall provide replacement parts after detecting the faults.
3. If any big quality problems occurs out of the guarantee period, we will send maintenance
 technician to provide visiting service after checking with the customer and charge for a favorable price. 
5. We will provide a lifetime cost price to the buyer with the materials and spare parts used in system operation, equipment maintenance.
6. The above mentioned are only basic aftersale service requirements,we will make more promises related to quality assurance and operation guarantee.

FAQ

What are the main components of an induction heating system?

A complete induction heating system includes a power supply, induction coil, remote heating head, and a closed-loop water-cooling unit. The power supply delivers a controlled high-frequency alternating current to the coil, generating a magnetic field that transfers heat to the part. Temperature controllers, pyrometers, and cooling systems ensure safe, reliable, and energy-efficient operation even in continuous or high-production environments.

How do i choose the right frequency and power for induction heating system ?

Selecting the proper induction heating frequency and power level depends on your material type, part geometry, and heating goals. Low frequencies provide deeper heat penetration for larger parts, while high frequencies focus energy at the surface for precision surface hardening. Our induction heating experts help determine the optimal parameters to deliver consistent heat profiles, maximum process efficiency, and repeatable results for your industrial manufacturing process.

Which manufacturing applications use induction heating machine ?

· Joining: brazing, soldering, shrink-fitting

· Heat treating: hardening, tempering, annealing, stress-relieving

· Forming: billet, bar, and tube pre-heat for forging, extrusion, and bending

· Bonding & curing: adhesives, paints, composites, cap-sealing

· Industries span automotive, aerospace, EVs, semiconductors, oil and gas, medical, consumer-appliance, and heavy equipment.