Main Products

IGBT induction heater power 7-1500KW Frequency 0.1-400Khz For hot forging, induction hardening and tempering, brazing, pipe heating

Why Duolin

DUOLIN has been founded in 1994, now is a professional factory to develop, design and manufacture Induction Heating Equipment. We are cencentrating on the improve of IGBT Induction Heating Technology for 30years, has installed thousands of Induction Heating Process for hot forging, induction hardening, long bar/threaded rod heat-treatment and induction pipe bending, Induction elbow...

Rich Experience

Rich Experience

More than 30 years of experience in induction heating industry

Free Test

Free Test

Free test for choosing the machine model before purchase

Design and Development

Design and Development

Product design research develop and maintain by the Duolin Engineer team, machine lifetime service

Quality Control

Quality Control

Test the machine as customer heating requirements and aging more than 6 hours to guarantee the good quality

Installation Guide

Installation Guide

Offer installation manual and troubleshooting guide

Brand Raw Materials

Brand Raw Materials

Use famous brand components Infineon Omron Schneider to ensure quality of material

What is induction Heating?

What is induction Heating?

Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents. An induction heater consists of induction power supply (induction heater) and inductor (coil) that is a shaped to contour the part, and a work station where the part is held and presented to the coil.

Customized Turnkey induction heating machine

Customized Turnkey induction heating machine

Provide solution according to your requirement, well match with your production line

CASE PRESENTATION

DUOLIN has been founded in 1994, now is a professional factory to develop, design and manufacture Induction Heating Equipment. We are cencentrating on the improve of IGBT Induction Heating Technology for 30years, has installed thousands of Induction Heating Process for hot forging, induction hardening, long bar/threaded rod heat-treatment and induction pipe bending, Induction elbow...

Customer Visits

Your team are warmly welcomed to visit our factory and discuss heating requirements for induction heating systems face to face.

South Africa Customer For Long Bar Hardening And Tempering Line

South Africa Customer For Long Bar Hardening And Tempering Line

Pakistan Customer Pipe Heating Test

Pakistan Customer Pipe Heating Test

Nigeria Customer For Hot Pipe Bending

Nigeria Customer For Hot Pipe Bending

MetalTech Newzealand Customer

MetalTech Newzealand Customer

Meet Saudi Arabia Customer In Shanghai Exhibition

Meet Saudi Arabia Customer In Shanghai Exhibition

Indonesia Shaft Induction Hardening Equipment Installation

Indonesia Shaft Induction Hardening Equipment Installation

India Agent For Study

India Agent For Study

Germany Customer For Agent

Germany Customer For Agent

Customer From Russia Chain Heat Treatment

Customer From Russia Chain Heat Treatment

Bulgaria Customer  For Induction Bar Hardening Project

Bulgaria Customer For Induction Bar Hardening Project

Argentina Customer For Hot Bolts Making Project

Argentina Customer For Hot Bolts Making Project

After-sale service for Chain Hardening And Tempering

After-sale service for Chain Hardening And Tempering

Turkey Customer Hot Forging Meeting

Turkey Customer Hot Forging Meeting

Indonesia Customer for Heating

Indonesia Customer for Heating

Turkey Customer For Bearing

Turkey Customer For Bearing

Dubai Customer For Heat Treatment

Dubai Customer For Heat Treatment

Germany Customer Meeting

Germany Customer Meeting

Ukraine Customer Visiting

Ukraine Customer Visiting

Saudi Arabia Customer For Hardening

Saudi Arabia Customer For Hardening

Customer Visiting

Customer Visiting

28 May

The 4th Changsha International Construction Equipment Exhibition (CICEE)

The 4th Changsha International Construction Equipment Exhibition (CICEE) has been held from May 15-18, 2025. Duolin, as a well-known induction heating equipment manufacturer in China, was invited to participate in this exhibition.

08 May

The Pros and Cons of Induction Hardening

Induction hardening is a heat treatment method used to selectively and rapidly harden the surface of a metal. In this process, a copper coil carrying an alternating current is positioned near—without touching—the metal part.

23 May

Data-Driven Insights into Induction Hardening: Why Manufacturers Are Upgrading

Data-Driven Insights into Induction Hardening: Why Manufacturers Are Upgrading

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