High Quality Hvac Ductwork Manufacturers

When this question is asked, you may think about cost, safety and performance of hvac duct machine. A manufacturer is expected to make sure the source of raw material, reduce the cost for raw material and adopt advanced technology, so as to improve the performance-cost ratio. Now most of the manufacturers would test their raw materials before processing. They may even invite third parties to test the materials and issue test reports. Stable partnerships with raw material suppliers are of great significance to the hvac duct machine manufacturers. This means that their raw materials would be guaranteed by price, quantity and quality.

YINGDE VENTECH INTELLIGENT EQUIPMENT CO., LTD. has been recognized for decades as a industry leader in the development of automatic machine. fabric cutting machine is the main product of VENTECH INTELLIGENT EQUIPMENT. It is diverse in variety. The product features safety during operation. The electrical system and its relevant accessories all meet the requirements of IEC general standards. Thanks to its high automation, this product greatly helps save labor costs. We have professional after-sales team to ensure the delighted shopping experience in VENTECH INTELLIGENT EQUIPMENT. This product is able to run at a fast and stable manner.

VENTECH INTELLIGENT EQUIPMENT will provide comprehensive solution for our fabric cutting machine. Get an offer!

CIF is changed based on demand, port of destination, etc. Under CIF (= Cost, Insurance and Freight), we are responsible for providing insurance coverage for hvac duct machine while in transit for 110% of their value. It is our indispensable duty to guarantee the product quality and safety. We offer strong support even though the product leaves for the destination.

Automatic machine produced by YINGDE VENTECH INTELLIGENT EQUIPMENT CO., LTD. take the lead in domestic market.  foam cutting machine is the main product of VENTECH INTELLIGENT EQUIPMENT. It is diverse in variety. The biggest advantage of this product is energy saving. It can make self-adjustment in accordance with the different pressure needed during production to reduce energy consumption. This product is ensured to have no leaking problems. The quality of customer service has been kept in each VENTECH's staff 's mind. The working speed of this product can be easily set in line with requirements.

VENTECH enjoys a good reputation for its considerate service. Contact!

We are committed to offering top-quality hvac duct machine together with comprehensive services. We offer the service and attention not available from other companies. From production to delivery, we strive to make each part of the process the best experience, such as the response within 24 hours, professional consultation, accurate quotation, on-time delivery, and so on. And after delivery, if you have a problem with the product, we respond quickly. We aim to minimize headaches when issues arise. Call us, email us, or message to us. Our passionate and professional team is always ready to give you the best service.

YINGDE VENTECH INTELLIGENT EQUIPMENT CO., LTD. is an industry leader in China for producing foam cutting machine. automatic machine is the main product of VENTECH INTELLIGENT EQUIPMENT. It is diverse in variety. Using such design, the goal for factory automation is achieved while meeting the requirements on factory automation. Easy to care for, this product helps save maintenance costs for factory owners. The product has a robust construction. Its metal parts, such as housing, are made of superior quality that can withstand abrasion and impact. This product is compatible with materials at different heights and widths.

All of our VENTECH people will follow the key value of faithful, grateful, fighting and win-win principle. Inquire!

If you do business in insulation cutting machine sector, YINGDE VENTECH INTELLIGENT EQUIPMENT CO., LTD. is a provider you want to create the ideal merchandise! Our quality systems and production methods are among the very best in the industry. Along with our years of expertise will be able to aid you in finding a means to accomplish your objective.

The company has a group of automatic machine professional and technical personnel who are in the leading position in China. VENTECH INTELLIGENT EQUIPMENT's automatic machine series include multiple types. The product has various quality attributes and high performance. This product has been praised by its prominent energy-saving effect. Being trusted by long-term partners, VENTECH is encouraged to produce higher-quality foam cutting machine. The working speed of this product can be easily set in line with requirements.

Our commitment to going to green production promotes us to take corresponding approaches. We will double our efforts to upgrade the industrial structure to achieve a balance between business development and environmental friendliness.

Manufacture and installation process of angle iron flange air duct




1. Material entry preparation
(1) The materials entering the project must meet the project quality regulations and technical requirements. The steel nameplate is clearly visible, and the relevant certificates, inspection reports, and factory certificates are complete.
(2) The galvanized steel sheets should be kept in good condition when they enter the site, to avoid bumping and damage, and should be placed in storage neatly for management.
(3) The materials entering the site should be well protected to avoid pollution, rain and other measures.


2. Angle steel blanking, drilling, flange production
(1) Angle steel blanking
u The blanking of the angle steel flange is welded by four angle steels. When cutting the line, it should be noted that the inner diameter of the welded flange cannot be smaller than the outer diameter of the air duct.
u Use a cutting machine to cut according to the line. For the production of flanges and hanger bases, the cutting and welding sites should be separated from the air duct production site. After the iron components are oiled and dried, they can be assembled and installed.
(2) Angle steel hole punching, flange welding
l After cutting and straightening, put it on the punching machine to impact the rivet holes, bolt holes, and hole distance. The high-pressure system should not be greater than 100 mm. Medium and low pressure systems should not be larger than 150 mm;
l Burr grinding
l The punched angle steel is placed on the welding platform for welding, and it is clamped and flattened according to the molds of various specifications during welding. The weld of the air duct flange should be well fused, full, free of false welding and holes. The allowable deviation of the flatness of the flange is 2mm. The screw hole arrangement of the same specification flange processed in the same batch should be consistent and interchangeable.
l Flange derusting;
l Spray paint on the flange. The surface of the flange is sprayed evenly without tear marks.


3. Galvanized sheet blanking, air duct assembly
(1) Galvanized steel upper gantry frame.
(2) Galvanized steel sheet blanking. Before blanking, check whether the grade, thickness and surface quality of the steel sheet comply with relevant regulations. Before cutting, check whether the cutting equipment is operating normally, and proceed under safe conditions. When processing galvanized steel air ducts, avoid damaging the galvanized layer, and the damaged parts (such as bites, folds, riveting, etc.) should be painted with high-quality paint twice.
(3) The flange of the galvanized steel plate should be flat and close to the flange, and its width should be consistent and not less than 6mm. There should be no cracks and holes in the seams and corners.
(4) The folding edge of galvanized steel sheet should be straight, and the bending degree should not be greater than 5/1000;
(5) The splicing of air ducts shall not have horizontal seams, and the longitudinal seams shall be minimized. When the width of the bottom edge of the rectangular air duct is equal to or less than 800mm, there shall be no longitudinal seam at the bottom edge.
(6) The opening of the finished air duct needs to be sealed with plastic film and tape. The air duct sub-system is placed in the finished product warehouse, and the seal is removed after being transported to the site during installation. If there is dust in the air duct, it should be cleaned again before installation. For the air duct that has not been installed, the opening of this section of the air duct should be sealed with a galvanized sheet and a seal to prevent dust from entering the air duct.
(7) The flange installation of the air duct should be tightly connected and firm. The gasket material of the air duct flange shall meet the requirements of the system function, and the thickness shall not be less than 3mm. The gasket should not protrude into the pipe, nor should it protrude out of the flange.
(8) The technical quality review shall be carried out before the riveting of the air duct and the flange. After the quality is qualified, put the flange on the air duct. The folding line of the air duct should be perpendicular to the plane of the flange, and then use hydraulic rivet pliers or manual eye pliers to rivet the air duct with rivets and turn the edges around. The flanging should be flat and not less than 6mm. The four corners should be flattened and there should be no gaps to avoid air leakage.
(9) The air duct is connected to the corner of the flange.
(10) Different specifications of air ducts use different specifications of rivets. The flange production should check the geometric dimensions and find out the flatness. The allowable deviation of the flange flatness is 2mm. For the flanges of the same size, uniform production and uniform drilling ensure that the flanges are interchangeable.







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