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Thread Bar Continuous Induction Heating For Hardening And Quenching Heat Treatment Production Line
Automatic Induction Hardening and Tempering Production Line for Long Bar
Duolin Brand Induction Heating Machine Factory
Duolin is a famous brand of Induction Heating Machine in China since 1996. The company built factory buildings in 2002 and started internal trade in 2009, accumulating over 20 years of experience in induction heating. Our induction heating equipment uses IGBT series resonance technology for energy efficiency, with power ranging from 7-1500KW and frequency from 0.5-250Khz. Widely used for hot forging, coating, brazing, hardening, and heat treatment applications.
Duolin engineering team offers customers the most suitable induction heating solutions!
Application: Continuous hardening and tempering
Length: 1000-14000mm
Grade: 8.8, 10.9, 12.9
| Diameter | Machine for Hardening | Machine for Tempering |
|---|---|---|
| M6-12 | SSF60 | SSF30 |
| M14-20 | SSF80 | SSF50 |
| M22-M30 | SSF120 | SSF60 |
| M32-40 | SSF120 | SS80 |
| M42-50 | SSF-TR-160 | SSF120 |
| M52-60 | MFP300D | MFP160D |
| M60-70 | MFP600D | MFP300D |
Part: long bar, threaded rod, tube, pipe
Size: Diameter 6-120mm
Length: 1000-14000mm
Grade: 8.8, 10.9, 12.9
Material: Carbon steel, alloy steel
A metal-joining process where two or more metal items are joined by melting and flowing a filler metal into the joint, with the filler metal having a lower melting point than the adjoining metal.
Uses inductors to locally heat pipe or tube while an accurate drive system pushes the material in a desired radius. The hot section forms at the set radius and is then cooled by water. Widely used in oil and gas industry with bending range of diameter 159-762 mm and thickness 5-35 mm.
The most common form of heat treatment, widely used on shafts, gears, pipes, and other parts in the automotive industry. Induction power is applied to the surface, heating to required depth, then cooling rapidly with water, oil, or other cooling medium.
Please send us your heating requirements for:
- Engineering team consultation for suitable heating solutions
- Custom coil design
- Free testing in our factory until satisfaction
- Machine lifetime service with available spare parts
- Production line layout, manuals, installation and training
- Coil repair services
- Heating purpose change consultation and new coil design
- Professional suggestions on machine power and work frequency based on heating requirements
- Turnkey induction heating project layout for installation space planning
- Sample testing support and free coil design based on parts dimensions
- Factory meetings to discuss optimal heating solutions
- Machine production and factory testing with video documentation
- Quality checks and 8-hour aging testing for stable operation
- Door-to-door shipping service for first-time importers from China
- Timely delivery and customs clearance support
- 1-year warranty with free repairs and spare parts for non-artificial faults
- Electric and water connection installation services
- Daily operation training and engineer installation support
- Free online video meeting support for installation
- Machine repair and spare parts availability throughout service life
- Induction heating equipment development and production line improvements
- Comprehensive manuals, installation guides, and troubleshooting guides
More than 56 countries with over 3000 machines installed, with agents in 10 countries.
International trade since 2009, manufacturing induction heating machines since 1996 with extensive experience. All products are researched, designed, and developed by Duolin engineering team including electric engineers, mechanical engineers, coil design engineers, and application engineers.
We provide pictures, videos, and documentation for installation. Engineers are available for on-site factory installation support if needed.
We can ship from any port in China, typically Shenzhen, Shanghai, Ningbo, or Guangzhou, arranged according to customer instructions.
We maintain stock for HFP-20 and SSF models, requiring about one week for coil making, machine testing, and packaging. Medium frequency high-power machines are customized with production time around 1 month.
DUOLIN is an established brand for induction heating equipment in China. We own our factory building (purchased land, not rented) with 79 employees, making us a large-scale company in the Chinese induction heating machine manufacturing industry.
thread bar induction heating production line
,continuous induction hardening production line
,quenching induction heating production line
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