DELLOK Laser Welding Finned Tube Coil Made Of Stainless Steel

DELLOK Laser welding finned tube made of Stainless Steel

About Us

^{DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) was established in 2002, which is located in Jiangsu, China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above. Quality is the theme of eternal pursuit of winner -Production workshop- Meticulous works, standardized management system and systematic quality assurance are Dellok(YONGHUI)'s best commitment to quality. In Dellok(YONGHUI), the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.}

Advantages of laser welding finned tube

<sup>1, A high degree of automation, automatic fins laser welding machine can realize one-time completion of welding, synchronous winding make the fin foot and the pipe depth of weld.
2 Laser welding, high firmness, high binding force. Laser welding is metallurgical bonding, welding strength is more than 600MPa.
3, Laser welding machine with high accuracy, welding a 8 meter long Fin Tube with a precision of 0.05mm.
4. The heat transfer coefficient can be improved greatly by laser welding.
5, Laser welding finned segment length is less than or equal to 2.5 mm, heat dissipation area than the high frequency welded pipe (distance is more than or equal to 4.5 mm) increased by nearly 50%, greatly reducing the material of the tube, also can decrease the change of the volume of the Heat Exchanger.</sup>

Application

^{Finned tubes are widely used in power, chemical and other industries. Many spiral heat exchange surfaces or threaded tubes can be regarded as finned tubes. It has a significant effect on expanding the heat exchange area and promoting turbulence, and it has a great effect on both single-phase-convection heat transfer and phase-change convective heat transfer. The structure of the Finned Tube Heat Exchanger is basically the same as the general shell and tube heat exchanger. Just use finned tubes instead of light tubes as the heat transfer surface. Finned tube heat exchangers are also often used to heat or cool the gas outside the tube, and steam or water is passed through the tube, such as air coolers, boiler economizers, radiators, etc.
The finned tube has a wide range of materials, including stainless steel, carbon steel, titanium-copper alloy, etc. The corrosion resistance of the industry has greatly increased.}

Following dimensions and materials (steel and aluminum)
are available from stock and can be combined:

Tubes can among others be manufactured in following dimensions:

Tube codififi cation

FAQ

^{Q: What is your the lead time for production?}

^{A: Generally Sample needs 1-3 days, mass production needs 15-30 days, also depends on your request.}

^{Q: What is the warranty for your products?}

^{A :We provide one year warranty for the products.}

^{Q: What payment terms do you accept?}

^{A :Trade assurance,TT,Western Union.}

^{Q: What are the modes of transportation of machines?}

^{A: Air freight, sea freight express delivery, etc. We will choose the most suitable transportation method according to your requirements.}