+86 28 8393 0607
Company Profile
Duolin as brand of Induction heating machine manufacture and induction heating solution provider founded in 1994.More than 20 years of experience and history have won the high trust of customers In China and abroad.
Induction heating equipment power 4-2000KW work frequency 0.5-400Khz.Product design research and develop by Duolin engineer team,and strictly produce under ISO9001:2015.Duolin as High-tech enterprise,approved more than 20 national patent,Provide green and reliable energy for production and processing enterprises.
The induction heating system widely used in billet bar blank carbon steel hot forging, induction power supply for gear shaft wheel pin hardening and quenching, long bar induction hardening and tempering, thread bar heat treatment, pipe induction heating for hot bending and other color metal heating,aluminium cooper....
Since 2007, we have been doing foreign trade and have agents in Brazil, Germany, Argentina, UK, Iran, Russia, India, Pakistan and South Africa. End user in Greece,Canada Vietnam,Indonesia...Some end users who have been cooperating with us since 2009.
Duolin Culture
Constantly Strive To Be Stronger,Keep Moving In Induction Heating Industry
Our History
Our Certificate
2004 All-solid-state induction heating equipment patent ZL03 2 33138X
2004 Fully automatic high-frequency melting equipment patent ZL03 2 34189X
2009 All-solid-state high-frequency induction heating power supply for sealing machine ZL2009 2 0078560.3
2009 Energy-saving high-power IGBT series resonant medium-frequency induction heating power supply circuit ZL2009 2 0078558.6
2009 Intelligent high-frequency crucible mold separation melting system ZL2009. 2 0078561.8
2010 Rivet heating patent ZL2009 2 0078559.0
2010 Integrated transformer patent
2010 Remelting furnace patent
2012 Medium frequency bending pipe heating equipment based on IGBT
2012 Aluminum melting furnace equipped with IGBT induction power supply
2012 A heating device for C-type ring heating furnace
2012 A device for coating solar collector tubes
2013 Constant temperature control system for high-frequency melting machine equipment
2013 Two utility model patents for current balancing system and full-bridge inverter unit of ultra-high power IGBT induction heating equipment
2014 Current sampling system
2014 Temperature-controlled medium frequency heating
2014 Automatic feeding
2016 Two utility model patents for current balancing system and full-bridge inverter unit of ultra-high power IGBT induction heating equipment (invention patent)
Social Responsibility
Provide green energy to protect the environment
Substitute high frequency vacuum tube induction machine,it can save electricity water and smaller installation space
Good quality of part and environmentally friendly,can substitute heating method by gas,fuel and coal,reduce pollution
Easy operation and good working condition
Why Choose Us
More than 20 years of experience in induction heating industry
Free test for choosing the machine model before purchase
Product design research develop and maintain by the Duolin Engineer team,machine lifetime service
Test the machine as customer heating requirements and aging more than 6 hours to guarantee the good quality
Offer installation manual and troubleshooting guide
Use famous brand components Infineon Omron Schneider to ensure quality of material
Customer Visits
Your team are warmly welcomed to visit our factory and discuss heating requirements for induction heating systems face to face.
Quick Links
Tel.: +86 28 8393 0607
Mob.: +86 158 8242 2821
WhatsApp: +86 158 8242 2821
Add.: 112th Hancheng Road Xindu Industrial Zone Chengdu China