1 More than 20 years of experience in induction heating industry.
2 Free test for choosing the machine model before purchase.
3 Product design research develop and maintain by the Duolin Engineer team,machine lifetime service.
4 Test the machine as customer heating requirements and aging more than 6 hours to guarantee the good quality.
5 Offer installation manual and troubleshooting guide .
6 Use famous brand components Infineon Omron Schneider to ensure quality of material
  • China Wholesale Induction Heating Circuit Manufacturers - Induction Annealing machine – Duolin

    China Wholesale Induction Heating Circuit Manufacturers - Induction Annealing machine – Duolin

    Products Description Induction annealing is a kind of heat treatment by induction heater, heat stainless steel or copper to a specified temperature and then cooling at a rate that will produce a refined microstructure. Using Induction heating, metal can be rapidly heated to temperature at controlled an repeated cycles without contacting the metal target, material are usually cooled in open air. The results to change the material’s  hardness and strength or other physical properties. T...
  • China Wholesale Induction Central Heating Quotes - Closed type – Duolin

    China Wholesale Induction Central Heating Quotes - Closed type – Duolin

    Closed type Cooling water shall be free from impurities. DOT NOT use well water or river water .To prevent the scale formation, ensure good cooling result, and greatly reduce the failure rate,Soften Water or Distilled Water are strongly recommended as cooling water for induction equipment. Water or air cooling is very important for induction heating device, improves reliability of induction heating equipment, ensure the induction machine working long time and stable. it is easy to insta...
  • China Wholesale Three Phase Induction Machine Suppliers - High frequency induction heating machine HFP-20 – Duolin

    China Wholesale Three Phase Induction Machine Suppliers - High frequency induction heating machine HFP-20 – Duolin

    Product Detail Power 7KW work frequency 50-100Khz Digital display and foot switch for easy cooperation Time set available for auto and manual work model 4 Fault indicators protecting and instructing easier to repair machine PLC interface available for automatic work The first generation of Duolin induction heating machine,stable and durable High frequency light weight and small size Power supply 220V single phase,home use is OK and easy for cooling Technical parameter Model ...
  • China Wholesale High Frequency Induction Heating Furnace Quotes - Induction coil&Inductor – Duolin

    China Wholesale High Frequency Induction Heating Furnace Quotes - Induction coil&Inductor – Duolin

    Products Description Duolin designs and produce custom induction coils. Induction coil is the output work head of the induction heating system, also called inductor. Induction coil use to connect the induction heating machine with the heating workpiece,it is made of cooper tube usually,can be use for induction hot forging,brazing,induction quenching and pipe bending…. Induction coil is a critical component of the induction system. Coil’s inductance should match with heating machine, to a...
  • China Wholesale Induction Bending Pipe Quotes - DI water cooling system – Duolin

    China Wholesale Induction Bending Pipe Quotes - DI water cooling system – Duolin

    DI water cooling system Cooling water shall be free from impurities. DOT NOT use well water or river water .To prevent the scale formation, ensure good cooling result, and greatly reduce the failure rate,Soften Water or Distilled Water are strongly recommended as cooling water for induction equipment. PH: 7-8.5 Suspended solids<10mg/L Hardness<60mg/L Conductivity<500μA/cm3 Chloride ion:Average<60mg/L Sulfate ion<100mg/L Iron<2mg/L Solubilitysio2<6mg/L Dissolved solid<300mg/L ...
  • China Wholesale Induction Heating Factories - Long bar heat treatment machine – Duolin

    China Wholesale Induction Heating Factories - Long bar heat treatment machine – Duolin

    Products Description Long bar heat Treating is induction heating for bar hardening and tempering. Heat treatments available by induction hardening and tempering system, process includes heating and quenching, tempering and stress Relieving. Duolin long bar heat treating line can process bar diameter from 6-100mm, length from 1000-14000, meet small & big production capacity. Feature Environmentally-friendly:The main power for the induction heat treatment line is electric...
  • China Wholesale Oem High Frequency Induction Heating Furnace Factories - High frequency induction heating machine HGP-50 – Duolin

    China Wholesale Oem High Frequency Induction Heating Furnace Factories - High frequency induction heating machine HGP-50 – Duolin

    Products Description Power 30-300KW Work  Frequency 50-250Khz Digital display Constant power and current output Safe,Low voltage output PLC interface available for automatic work Wide inductance to connect with different heating coil 8 fault indicators to protect machine Water cooled induction power unit and transformer Technical parameter Model HGP-30 HGP-50 HGP-100 Rated Power Output 30KW 50KW 100KW Working Frequency 50-250Khz 200-400Khz 50-130Khz ...
  • China Wholesale Crankshaft Hardening Pricelist - Integrated Induction Power Unit – Duolin

    China Wholesale Crankshaft Hardening Pricelist - Integrated Induction Power Unit – Duolin

    Products Description Integrated induction heaters is high performance at billet hot forging, matching with step feeder, chain delivery and three channel sorters, make up fully automatic production line which is high availability and heating efficiency. The induction generator are modular design, easily maintained, LED lights instruct user to find the fault and change the broken parts, All the components are designed for long work time and easily replace. Advanced converter technology ena...
  • China Wholesale Induction Hardening Heating Machine Factories - 100-160KW low frequency induction heating generator – Duolin

    China Wholesale Induction Hardening Heating Machine Factories - 100-160KW low frequency induction heating generator – Duolin

    Products Description Certification  CE  ISO9001 2105 Brand  Duolin Warranty  1 Year Production capacity  10 set one month HS Code  8514400090 1:100-160 KW Induction Heating Equipment adopts the IGBT inverter circuit in series connection, which has high heating efficiency 2. High power, fast heating speed, high efficiency and easy operation. 3. The comprehensive full load design is available for 24-hour continuous operation. 4: 160KW IGBT Solid state induction converter, the...
  • China Wholesale Induction Pipe Heater Pricelist - Long bar heat treatment machine – Duolin

    China Wholesale Induction Pipe Heater Pricelist - Long bar heat treatment machine – Duolin

    Products Description Long bar heat Treating is induction heating for bar hardening and tempering. Heat treatments available by induction hardening and tempering system, process includes heating and quenching, tempering and stress Relieving. Duolin long bar heat treating line can process bar diameter from 6-100mm, length from 1000-14000, meet small & big production capacity. Feature Environmentally-friendly:The main power for the induction heat treatment line is electric...
  • China Wholesale Rf Induction Heating Suppliers - Closed type – Duolin

    China Wholesale Rf Induction Heating Suppliers - Closed type – Duolin

    Closed type Cooling water shall be free from impurities. DOT NOT use well water or river water .To prevent the scale formation, ensure good cooling result, and greatly reduce the failure rate,Soften Water or Distilled Water are strongly recommended as cooling water for induction equipment. Water or air cooling is very important for induction heating device, improves reliability of induction heating equipment, ensure the induction machine working long time and stable. it is easy to insta...
  • China Wholesale Indution Hardening Generator Manufacturers - High frequency induction heating machine HGP-50 – Duolin

    China Wholesale Indution Hardening Generator Manufacturers - High frequency induction heating machine HGP-50 – Duolin

    Products Description Power 30-300KW Work  Frequency 50-250Khz Digital display Constant power and current output Safe,Low voltage output PLC interface available for automatic work Wide inductance to connect with different heating coil 8 fault indicators to protect machine Water cooled induction power unit and transformer Technical parameter Model HGP-30 HGP-50 HGP-100 Rated Power Output 30KW 50KW 100KW Working Frequency 50-250Khz 200-400Khz 50-130Khz ...
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