Construction technology of TDF flange duct

1. A TDF flange air duct manufacturing  auto line, which is programmed control, automatic feeding coil to forms Pittsburgh lock, TDF flange, folding and cutting to a full wrap duct. accurate high degree of automation, a total of duct auto line has greatly increased the production efficiency and production precision, reduce the project cost.

2. A TDF flange duct replaces the angle iron duct, it is with the advantages of more structural strength, no welding, riveting, galvanized sheet manufacturing, good corrosion resistance, closely connected, less leakage rate., save energy and reduce operating costs. The appearance, size, shape and line flow of the finished product meets the national standard. It is beneficial to the production of TDF flange duct rendering factory, scale, standardization and automation.

Difference between smoke exhaust damper and fire damper

1、 smoke exhaust fire damper:

It is installed in the exhaust system ducting, usually closed, manually or electric open when there is a fire to exhaust smoke. When the smoke temperature reaches 280 ℃ , it closed, its electric smoke release function is usually controlled by the center or a simple smoke detection device to direct its action.

2、 Fire damper:

Fire damper is normally open, closed when there is a fire to prevent the fire spread.

Fire damper is used in ventilation and air conditioning system,  except 150 ℃ using in public buildings kitchen exhaust smoke system, the general ventilation and air conditioning system with fire damper operating temperature is 70 ℃.

Selection refers to the functions, normally open or normally closed, automatically closed, automatically open, manually closed, manually open, manually reset, remote control or other requirements.

 Comifo is a professional manufacturer of fire damper products for more than 20 years, with this experience, Comifo has developed and designed fire damper manufacture auto line which can produce fire damper high efficiency, fire dampers made by these auto lines will definitely meets the requirements of the standard CCCF.

The future development trend of duct

Ventilation ducts is one of the essential tools of modern architecture, both commercial and residential need to install ventilation ducts to clean indoor air. Comifo as a professional duct production line manufacturer, which is discussing the future development of several major trends of duct as follows:

1、multiple use

In the type of duct, some ventilation ducts are used to extract soot. So there are extra temperatures left inside the duct which can be used again. The future duct is hoping to set the extra heat boiler in the system, heat exchanger and other temperature device may provide steam ,hot water or hot air, in order to maximize the use of ventilation system waste heat, improve energy efficiency.

2、the variable volume of air

At present, the air flow of the duct is fixed, the engine power is determined, the future duct may designed as variable flue gas, using a variety of different forms of speed control device to save energy and reduce the operating costs of ventilation systems.

3、 the follow-up recovery

In some factories, the production process will cause dust and other pollution, in order to purify the operation workshop, for the workers to create a healthy environment; will also install duct in the plant. Green production is the future production standards of enterprises, so the future design of the duct can also be designed in the development of waste gas management, the urgent need to develop in line with the economic characteristics of SMEs, less investment, low maintenance costs, flexible and easy to use ventilation Practical Technology of Duct.

The application of TDF flange machine in ventilation system

In recent years, the use of air duct as an important part of the ventilation system of the central air conditioning system has been increasing each year, and the production process of the air conditioning system has been increasing. And the advantage of TDF flange machine makes its application more and more extensive. The TDF flange air duct machine is also known as flangeless duct, and its production is faster, more convenient and less air leakage rate than the traditional rectangular duct. Its advantages are to save materials, reduce investment, reduce energy consumption, and save operating expenses, which are popular with construction enterprises.

Ventilation and air conditioning is to make indoor and outdoor return air treated as temperature, humidity, freshness air to meet the requirements of the environment, what doesn’t meet the requirements of the temperature, humidity, freshness air will be returned and treated or exhaust back  into the atmosphere. This process will be completed through ducts, which are mostly made of galvanized sheets.

Duct without flange connection construction technology is to keep the flange connecting duct and accessories cancelled, instead of direct occlusion, and middleware bite, such as pieces of auxiliary clamping way complete duct of lateral connection. Because no flange connection duct joint are usually simpler than flange connection, and together with the joint auxiliary parts no flange connection without auxiliary parts (some) weight is lighter, simple or standard parts can be used for batch production, can not only save a large number of steel, but also greatly simplify the construction process, improve the productivity, the experimental determination, no duct sealing flange connections is also better than the flange connection duct.  As TDF flange is with the same sheet metal plate with the duct, it seems to be designated as a kind of flangeless duct. It is widely used in the word and becomes more and more popular.

Comifo has been working hard for many years to provide competitive products for the majority of users. With excellent quality, novel design, reasonable price and perfect after-sales service, we have won the full trust and praise of our customers. It is a professional co-board flange duct production line manufacturer.

TDF flange - air duct production equipment

TDF flange machine is a special equipment which forms flanges to the connecting part of the ducts. Flange system is one of the large amount of produce duct flange connection system on international, has low cost, good sealing performance and the characteristics of convenient installation, especially suitable for cross section duct production area is small. The TDF flange system can be used in large-scale industrial production, which is a high efficiency duct flanged system. With good rigidity and stability, the shape of motion shaping is nice and smooth. With lock former, beading machine, folding machine and shearing machine, this combination can make a simple automatic production line for air duct, these machines structure is rigorous, the performance good, saved the cost for the customer, reduces costs; it is the best choice for small production customers.

There are two systems produce duct flange connection on international, TDF flange has its advantage of low cost, good seal performance, the characteristics of convenient installation, especially suitable for the small sectional area of duct production. 

Flange machine must be put in dry place, can't let the rain or other impurities went into the machine, used for a period of time to add the lubricating oil, make the machine more convenient operation, want to be in a specific time to check the nut in the fuselage, because in the use process is too long will cause the nut loose, so be sure to check regularly, to ensure safety in production, in a certain time for cleaning, make the machine to enhance vitality.

What are the economic benefits brought by the application of the duct production line?

Compared with the traditional duct production line, the appearance of the automatic air duct machine production line has brought great convenience to the enterprise. In the past, the process of duct production requires human participation and operation, while the entire duct production line of the entire duct molding process is completed by a single machine, it brings us economic benefits.

Make security much stronger. Through the establishment and improvement of the internal control system, such as organization construction, system construction and process design, the duct has formed a relatively strict risk control system. The duct with such a high standard of demand, then there will be no safety problems, greatly reducing the security risks, let us enjoy manufacturing bring us pleasure.

Save a lot of engineering materials: bolts according to the production in 2001 of about 40000 kilograms of steel construction budget using fixed pipe, about 40000 units, the use of TDF production line construction process, the installation of about 10000 sets of bolts.

The duct production line bring us many benefits, the rapid economic development when issued to a wide range of applications, from the two aspects of economic and social benefits in terms of TDF production line fully deserve contributors, Comifo duct production line as the industry leader, will continue to research and development of new technology, more advanced manufacturing duct production line.

How to use the duct processing equipment in a better way?

 The TDF flange is one of the two systems for making flange connections of the international duct making. It has the advantages of low cost, good sealing performance, simple and convenient installation, and is especially suitable for the production with small cross section area.

The flange system can be used in large-scale industrial production and is a highly efficient duct flange system. Flange and lock former, beading machine, shearing machine, bending machine and other combinations can be composed of automatic duct production line.

Flange machine must be placed in a dry place, cannot let the rain or other impurities into the machine, after a period of time to add lubricating oil, make the machine more convenient operation, check on the nuts at a specific time, because in the process of using may cause the nut loosed, so must regularly check, ensure the safety in production, in a certain period of time to clean the machine, enhance the life span.

Do not put your hand or fingers between the gaps of the rollers when the air duct machine is running, so as to avoid any accidents. Tools and other items cannot be placed on the machine; also should coordinate with each other and folding machines to maintain a certain distance, to prevent the overturned plate or the counterweight is wounded, and the operation of rolling machine and the compressor, hands are not directly push work. It should be installed in the motor with indoor or also can be set up to the shed, to prevent snow or rain, when in use, but also to check the machine is not flexible.

The duct processing equipment is processed by special production technology, and has the characteristics of fire prevention, waterproof, tasteless, non-toxic, non freezing, no corruption, no crack, unchanged, non combustible, light weight, convenient construction and long service life.

Duct Production Auto Line

A duct production auto line is a machine which produces the raw material to the ducts independently, which is automatically and continually making ducts during the whole processing. It increases the efficiency of duct making, reduces  labor cost, by which the duct auto line is widely used by the duct work shops and HVAC companies.

Comifo Duct Manufacture Machine Co., Ltd is one of Comifo group member, the leading company which specializes in machine manufacture, involving in Heating, Ventilation and Air Conditioning (HVAC) fabrication, cable tray fabrication, lock former, flange machine etc. With 9million RMB registered capital, the factory area of 140 thousand square meters, over 20 years of duct auto line manufacturing experience, we independent research and development production, has 24 national patent products, products sold more than 128 countries around the world.

The world’s new designed duct manufacture auto line is now available since Comifo designed the Auto Line VI (patent number: ZL 2007 2 0124168.9), which can be put in a 20GP container.
Container duct auto line VI with the feature of small size, firm structure and easy for installation, it can be used in the construction site to fulfill the ideal of movable operation and processing.
This auto line consists of decoiler (a special design which is easy to load coils in construction site), straightening, beading, punching, notching, shearing, patented automotion Pittsburgh lock forming (shearing, Pittsburgh lock, right angle lock in one time), duplex TDF flange forming, duplex right angle lock forming (for angle iron), and TDF folding. It
can process different ducting of “L”, and“ 口”. Used with the Comifo vertical duct seaming machine and corner inserter, increases production efficiency and saves labor cost.
The construction site used duct machines manufacturers auto line VI is Comifo’s brave innovation and the world’s first container type auto line! It saves the manual work and transportation cost, which can move to different construction sites just by moving the container (No extra installing and testing are needed). It has gained great popularity ever since its first face show in the market in 2012.