DELLOK SUS304 Stainless Steel Laser Welding Fin Tube

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.}

Product Introduction:

^{1, Laser welded finned tubes are processed fully automatically by a high precision laser welding machine.
2, Laser Welded Finned Tube adopts the leading processing technology by irradiating a high intensity laser beam to the metal surface, through the interaction of laser and metal, the metal absorbs the laser and converts it into heat, which melts the metal, forms cooling crystals and firmly welds the fins to the tube.
3, Laser welded finned tubes have a fully automatic welding process, saving labor costs; secondly, laser welded fins are firm, high strength and tested for tensile strength. The efficiency of laser welding is higher.}

Advantages of laser welding finned tube

<sup>1. The laser welding finned tube fin machine has a high degree of automation, and the welding of the fin to the
tube and the winding of the tube are synchronized
2. 100% welding rate, laser welding finned tube and fins are strong, the welding strength exceeds 600MPa.
3. The precision of laser welding tube finishing machine is up to 0.05mm
4. 0 contact resistance, achieve high efficiency of heat transfer of spiral finned tube by laser welding.
5. Save production costs. The laser welding finned tube has a smaller fin spacing, less than 2.5mm. Compared with
the high frequency welded spiral finned tube, the heat transfer area is increased by about 50%, which makes the
material cost Reduced, volume reduced Heat Exchanger.
6. The advantages over conventional MAG / HF welding are of decisive importance. The complete connection between the fin and the
base tube brings excellent heat transfer, and the thermal performance of the Fin Tube is increased by 2.5 times. Continuous
welding prevents the notch effect, thereby avoiding the formation of v-corrosion and cracks under the condition that the
finned tube may swing. The heating of base metals during welding is low and the travel speed is up to 20m / min. Minimize the
heat affected zone in the base tube. Therefore, it does not include the complete melting of the tube and the related
metallurgical transformation of the parent metal.</sup>

Application

^{a,Cooling towers or cooling water recooling plants with dry, dry / wet or wet operation
b, Flue gas cooling and heating in flue gas desulfurisation scrubbers (FGD) and nitrogen removing plants (DENOX)}

^{Chemical Industry}

^{a,Heat exchangers of all kinds for cooling and heating of liquids and gases
b,Heat exchangers tor nitric acid (HNO3) plants, e.g. for the fertilizer industry}

^{Heat Recovery Plants}

^{a,Flue gas coolers
Heating Industry
a,Primary heat exchangers in gas heating boilers
b,Secondary heat exchangers for domestic water heating in condensing boilers}

^{General Engineering}

^{a,Heat exchangers for gas cooling of industrial furnaces
b,Heat exchangers for tank heating
c,Oil coolers for vacuum plants, ship plants, pumps etc.
d,Heat exchangers for oil preheating}

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.}

DELLOK YONGHUI Radiating Pipe Manufacturing Co.,Ltd, was established in 2003, which is located in Jiangsu, China.We joined HARBIN AIR CONDITIONING CO., LTD.and became the most professional industry manufacturer in China., international bussiness more than 20 years, with it serves in the oil refinery, petrochemical industry, chemical industry, heat ex-changer industry, anti-corrosion engineering and environmental protection etc.. Our main products include pipe, tubes,  U bend tube, finned tube and pipe fittings made of Carbon Steel, Stainless Steel, Copper & Copper Alloy, Titanium, Inconel & Incoloy, Aluminium Alloy and so on.

Dellok Yonghui has successfully achieved this by offering our clients a range of high quality, environment friendly products from a diverse list of reputable, international principals, that sell by their own merit. By maintaining close contacts with our clients and providing dedicated technical support in time, we continue to meet and at times, exceed our clients' expectations. With an objective to provide piping material and tower packing to the oil and petrochemical industries, we strictly carry out a series of quality control measures and material control. The raw materials are purchased from well known, local famous mills such as TPCO, Tisco, Baosteel, Valin Group, Wuyang Steel and Luoyang Copper,..etc . We greatly value the repeat orders from commendable references and above all, the trust of our valued clients earned over the years. Our products are well accepted by customers from many countries

Due to our excellent quality, reliable performance and reasonable prices, we've established long-term relationships with our customers. Being the far-sighted and with a development vision of internationalization, Dellok Yonghui will always sticks to the idea of pursuit of value & cooperation is based on mutual benefits". We warmly welcome friends from all over the world to give counsel for development, and sincerely hope the realization of close cooperation on each field.

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.

- Production process-

Quality reflects Dellok's strength, outstanding quality rejects mediocrity, each set of advanced equipment and each unique process condenses the spirit of excellence of Dellok Yonghui people. Dellok Yonghui deeply understands that only near-perfect products can realize the core connotation of Dellok's commitment to "achieve your value" , which guarantees your interests and values.

- Quality Control-

In order to ensure that the quality exceeds the standard, Dellok Yonghui has perfect product management monitoring equipment in the facility, mainly including advanced equipment such as spectrometer, material testing machine, thermal performance tester, and water pressure and air pressure testing machine, Webster hardness meter and so on.

- Perseverance and trust-

Dellok products are widely used in petroleum, chemical, natural gas, metallurgy, electric power, grain and oil machinery, food freezing and automobile industries. High-quality products and perfect after-sales service have been praised, favored and supported by users in China and abroad. Dellok Yonghui promises that we regard customers' needs and opinions as work goals, and serve customers with a conscious behavior and potential consciousness at the base of 100% sincerity, quality, and service. Dellok Yonghui has now developed into a professional manufacturing enterprise integrating scientific research, manufacturing and sales. Dellok people will, as always, use advanced high-tech products and dedicated business philosophy to serve the whole society.

Inheritance and innovation are the driving force for progress

Choosing Dellok Yonghui is choosing quality assurance.

Choosing Dellok Yonghui is choosing to make extraordinary.

Let's go ahead together with Dellok Yonghui.

Contact:Brian Wanqian.

T:+86 13761381662 (Whatsap,Wechat,)

M:dellok@fins-tubes.com