Expert for pre insulated duct CNC cutting machine.


Everything You Should Know About HVAC Ductwork Fabrication!

Professional Guide to make HVAC Ductwork Fabrication


Whether you are new to HVAC or working in the industry, this page contains many useful resources to enrich your wine knowledge. let's start!

What is HVAC?

The term HVAC (heating, ventilation and air conditioning) ductwork describes any ductwork and vent system used to direct and distribute air in a vehicle or structure. HVAC ductwork is used in a variety of spaces from automobiles to homes to the largest construction sites, but all systems share certain characteristics in that they provide air circulation. Duct systems can be made from a variety of materials, depending on the intended installation site and the characteristics of the HVAC system it is designed to serve. All HVAC ductwork should be properly sized, tightly sealed, and securely installed for safe and efficient operation.


Find out more about the basics of HVAC in the following sections, these will open your eyes:


  1. What is HVAC ductwork?
  2. How to Insulate HVAC Ductwork?
  3. Three main energy-saving measures for HVAC systems?
  4. Difference between ducted and ductless HVAC
  5. HVAC Industry Trends You Need to Know
  7. Some of this knowledge, you can get more in VENTECH INFO CENTER!
Application of air-conditioning duct and thermal insulation material

HVAC ducts and insulation materials

In the ventilation project, the air duct should be made of suitable material according to the project requirements. Design and construction personnel need to fully understand the air ducts of different material properties and their use, application occasions, and under what circumstances the air ducts need to be insulated, to build a reasonable and durable ventilation pipe network system.


Therefore, having a certain knowledge of HVAC ducts and insulation materials will give you a better understanding of HVAC!


What is duct and types of duct?

Air duct classification and system composition

Pre-insulated duct board materials

Features of phenolic insulation board

Types of insulated materials

How to cut insulation?

How to fabricate ductwork?

When to insulate duct work?


Interested in learning more? We know this feeling. Here are the articles we think you'll like: VENTECH INFO CENTER!

Air Duct Leakage Testing

HVAC Installation and Inspection Guide

Now that we know some basics about HVAC and HVAC ducts and insulation materials, it's time to learn how to install and inspect HVAC!

The HVAC market is expected to reach $35 billion in the next decade. Why? It's important to feel comfortable in your home and keep your home energy efficient. That's why it's important to properly install and inspect your HVAC system!


Make sure you follow these guidelines!


HVAC duct fabrication

Problem Analysis of HVAC Installation and Construction

Analysis of measures to deal with common problems in HVAC

Specification for the manufacture and installation of phenolic air ducts

Solutions to water circulation and water condensation during AC installation

Air Duct Leakage Testing


For more installation and testing guidelines, please refer to: VENTECH INFO CENTER!

HVAC Duct Fabrication Machine

Duct fabrication machine: Why Is It So Important?

VENTECH Duct Fabrication Machine is the Best Choose for You!

Automatic Pre-insulated Duct Cutting Machine VDCM-4013

Ventech pre insulated duct cutter is fully automatic and ECO Fast CNC machine, totally designed by our own. CNC PID fabrication cutting Machines are manufactured with the latest technologies. They cut straight and special parts from insulation panels, used in the fabrication of pre-insulated HVAC ductwork and duct & pipe insulation.

Pre Insulated Duct Cutting
Pre Insulated Duct Cutting
Advanced automatic computing capabilities and automation technologies eliminate the traditional labor-intensive work required to produce air duct panels, and no longer need to manually mark, create templates, or use Hand-held tool for cutting.
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Pre Insulated Duct Cutting
Pre Insulated Duct Cutting
The duct cutter permits to obtain finished pieces for ducts in pre-insulated; no more hand operations and bendings to do, the pieces obtained are ready to be glued. The standard machine is completed with a large quantity of accessories and devices dedicated to reduce the production time and generate the best quality of finished product.
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Pre Insulated Duct Cutting
Pre Insulated Duct Cutting
With a big working size 4000x1300mm, a phenolic foam board can be fully utilized. As a result, production efficiency has been greatly improved, material scrap has been reduced, and production costs have been saved for duct fabrication. It can cut different shapes in one time, such as elbow type, shoe type, Y type, reducer, etc.
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Pre Insulated Duct Cutting
Pre Insulated Duct Cutting
Except for phenolic duct panel cutting, other applications include: routing and V-grooving aluminum-polymer composite material, fibreglass (fiberglass) insulation, PVC, PU, PIR foam duct panels for air conditioning and HVAC system.
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Different Series of HVAC Ductwork Fabrication Machine

Pre-insulated Duct Board Cutting Machine


Duct Board is a fiberglass product with an aluminum foil surface exposed to the airstream. Duct board is an alternative to galvanized steel in the fabrication of rectangular duct.  Used most in specific regions and on specific types of jobs including apartments, condos, and residential new construction, specifically tract homes.


VENTECH manufactures various types of Duct Board Cutting Machines for pre-insulated duct fabrication, including cnc cutting machine, bending machine, duct board grooving machine, square duct electronic cutting machine, etc.

Duct Board Cutting Machine

HVAC Insulation Cutting Machine

As an industry-leading provider of the most complete, innovative machinery and equipment for HVAC ductwork fabrication, VENTECH also offers solutions to improve insulation cutting processes that eliminate the duct liner bottleneck impacting your operation’s bottom line. 


Use of conventional and machining methods of cutting insulation requires part replacements and compromises the integrity of the insulation. 


VENTECH’s cutting systems can bring accuracy and efficiency to the cutting and fabrication of fiberglass and elastomeric foam insulation to keep your operation running proficiently and safely. 

HVAC Insulation Cutting Machine

Laser Cutting Machine

VENCETH HVAC Laser Cutting Advantages:

1. Laser cutting is a non-contact process that eliminates the need for expensive tooling and retooling costs.

2. System costs and monthly operating expenses are significantly lower than those of similarly operating equipment made by leading foreign and domestic manufacturers.

3. The high positioning accuracy provided by the ultra-reliable servo system and the thin cutting beam allow the operator to successfully make precise cuts in the finest materials without damage during the cutting process.

4. High quality exhaust system and the safety guarantee of eliminating exhaust gas emissions and compliance with environmental standards allow for considerable electrical and thermal energy savings during forced ventilation.

5. No complex mirror system requiring constant adjustment and expensive maintenance.

Laser Cutting Machine

Grilles and Diffuser Production Machine

HVAC grilles and diffusers are the exit ventilation points for heating, ventilation and air conditioning (HVAC) systems. Although they are occasionally used as return vents, their primary purpose is to introduce conditioned air into the space so that it is evenly distributed and mixed with minimal noise. 

HVAC grilles and diffusers come in a variety of standard sizes, usually square, rectangular or round; they usually have a set of louvers or fins that direct airflow in a pre-set pattern. Larger industrial grilles and diffuser may include adjustable louvers or dampers that can be adjusted manually or automatically to control airflow.

Although diffusers are often seen as decorative grilles for inlet vents, they play a vital role in the effectiveness of HVAC systems and should be properly matched to any given application.

HVAC grilles and diffuser
Custom Duct Cutting Machine

Custom Duct Cutting Machine

For air vent plants, because of lack of experience, they often face planning problems during the construction and upgrade phases. 
Our company not only has many years of experience in the production of related equipment, but also has 16 years of experience in the production air diffuser and grille. 
We have been working diligently from a small-scale air vent production workshop, and we are now a leading manufacturer in this field. 
Because while we are selling HVAC diffuser equipment, the most attractive service is to provide manufacturers with reliable customized solutions. 
The plan is meticulous to the number of production lines, personnel arrangements, and the location of equipment in the plant. 
We can also customize fully automatic production lines for customers to solve difficult problems for customers. 
This characteristic service has been favored and appreciated by customers.


Our machines can support all your custom sheet metal fabrication needs, all custom piping and fittings, residential light gauges and heavy duty gauges for your commercial project piping needs. All types of pipes and fittings from size 28 to 16.


We stock a full line of prefabricated sheet metal products manufacturing machines. From square to round piping systems. You can cut any shape and material you want with our cutting machines!

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