AC Sheet Metal Fabrication in China

KDM is an expert manufacturer that is specialized in the fabrication of sheet metal components for the air conditioning (AC) industry. We can also custom fabricate the sheet metal to meet all your air conditioning needs.

  • With more than 10 years of fabricating experience
  • Diverse range of metal materials
  • On-time delivery & high-quality guaranteed
  • Cost-effective solution for your AC sheet metal parts needs

KDM AC Sheet Metal Fabrication

KDM is focused on fabricating high-quality AC sheet metal parts such as rectangular ductworks, roof curb adapters, spiral ductwork, roof curbs, fittings, and other components of many air conditioning systems. In AC systems, the components are usually made from aluminum or galvanized steel. However, other materials such as copper, magnesium, brass, stainless steel, and other sheet metal can also be used.

The fabricated AC sheet metal parts are featuring excellent heat resistance, high durability, long service time, lightweight design, excellent corrosion resistance, impact resistance, high tensile strength, and so much more.

Moreover, to fully satisfy your AC sheet metal parts needs, KDM can precisely cut, shape, form, or fabricate the sheet metal parts for AC systems based on your specifications. If you want a custom fabrication of AC sheet metal components, feel free to contact us!

KDM AC Sheet Metal Fabrication Series

Sheet Metal AC Covers

The sheet metal AC covers are available in many different designs and sizes depending on the customers’ needs. They can be made using aluminum or galvanized steel sheet. Also, they are completely resistant to corrosion and highly durable.

Window AC Steel Sheet Support Brackets

The window AC steel sheet support brackets can be used for supporting window AC units. They are made from durable and heavy-duty steel sheets. Also, they have high load capacity, excellent resistance to corrosion, are lightweight, and have ease of installation.

Aluminum Steel Sheet L-Shape Corner AC Brackets

The aluminum steel sheet L-shape corner AC brackets are applied with a protective coating to they will have a great performance in outdoor applications. They are protected from corrosion and will last for a long time. Also, they can be used for installing an outdoor unit of an air conditioner.

Universal Steel Sheet AC Mounting Plate

The universal steel sheet AC mounting plates can be fabricated using iron, stainless steel, or aluminum steel sheet. They are firm, thickened, wear-resistant, easy to mount, and lightweight. Also, they are made by stamping, perforating, bending, etc.

Sheet Metal AC Contactor Switch Parts
Sheet Metal AC Contactor Switch Parts

The sheet metal AC contactor switch parts are made with rivets and perforation. Also, they can be produced using copper, aluminum, or steel. They are featuring rust resistance, moisture resistance, temperature resistance, and sturdiness.

Custom Sheet Metal AC Parts Fabrication
Custom Sheet Metal AC Parts Fabrication

The custom sheet metal AC parts can be fabricated using a variety of materials such as stainless steel, aluminum, galvanized steel, mild steel, and other sheet metal. They can be fabricated into different shapes or parts of air conditioner units. Also, they are corrosion-resistant, durable, lightweight, etc.

6 Products Found.

KDM AC Sheet Metal Fabrication by Materials (4)

  • Aluminum Sheet Metal AC Fabrication

    The aluminum sheet metal can be fabricated into different types of AC parts such as ground brackets, enclosures, wall mounting brackets, and many more. They have good rigidity, water resistance, heat dissipation, corrosion resistance, etc. Also, they are easy to install since they are light in weight.

  • AC Galvanized Steel Sheet Metal Fabrication

    KDM can fabricate different types of AC parts such as rectangular ductwork parts, duct corners, flanges, and other components of galvanized steel. The galvanized steel sheet AC parts are dipped in a zinc coating to make them extremely resistant to scratches and corrosion.

  • AC Stainless Steel Sheet Fabrication

    The AC parts that are made using stainless steel sheets have excellent resistance to corrosion. Some of the AC parts that are made from stainless steel sheets are support brackets and drain pan. Also, they have a shiny appearance, water resistance, and excellent sturdiness.

  • AC Carbon Steel Sheet Metal Fabrication
    AC Carbon Steel Sheet Metal Fabrication

    The carbon steel sheet metal can be used for fabricating air conditioner housings, mounting brackets, holders, and other AC parts. Also, the AC parts that are made from carbon steel sheets are commonly coated with various types of surface coatings to prevent them from corrosion and scratches.

KDM AC Sheet Metal Fabrication Advantages

Resistant to Corrosion
Resistant to Corrosion

The sheet metal AC parts are made from corrosion-resistant materials such as stainless steel, galvanized steel, and many more. They are also applied with an anti-rust coating in order for them to be highly resistant to various types of corrosion such as atmospheric corrosion, pitting corrosion, and so on.


KDM sheet metal AC parts are very light in weight. Due to that, they are also very easy to install. They are made from lightweight materials such as aluminum, titanium, and other metal. You can also save money since they are light and easy to transport.

Highly Durable
Highly Durable

The sheet metal AC parts are made from durable and high-quality materials to ensure they have excellent durability and long service life. Since they are durable and not easy to break, you can avoid costly repairs.

Fully Customizable
Fully Customizable

KDM can custom fabricate the sheet metal into different types of AC parts and accessories based on your requirements. The sheet metal can be cut, welded, stamped, bent, and form according to what you need. Their sizes, materials, surface coatings, and other specifications are fully customizable.

KDM Sheet Metal Fabrication for the AC Industry

KDM is providing a custom fabrication of sheet metal parts for different sizes, brands, or types of AC systems. We have more than 10 years of experience in the fabrication of AC sheet metal parts. Many air conditioning contractors or companies have partnered with us due to our accurate custom fabrication, reliable services, and quality products at a low price!

KDM can fabricate various types of AC sheet metal parts such as brackets for capacitors, fittings, lever arms, mount brackets, and even the complicated parts of the AC systems can be produced.

If you need any kind of custom sheet metal parts for your AC projects, you can contact us!

KDM Sheet Metal Fabrication for the AC Industry
KDM AC Sheet Metal Fabrication Materials

KDM AC Sheet Metal Fabrication Materials

KDM uses a wide range of materials for the fabrication of AC sheet metal parts or products. Some of the materials we use are sheet metals such as:

Aluminum – Aluminum sheet metal is commonly used for fabricating AC parts due to its lightweight nature which will result in an easy installation. Also, it is highly resistant to corrosion and easy to bend.

Galvanized Steel – Galvanized steel sheet is a metal that is applied with a rust-resistant zinc coating. It is commonly used for AC systems since it is easy to fabricate, has protection from corrosion, and prevents the growth of fungus and molds.

Stainless Steel – Stainless steel has a similar amount of sturdiness to galvanized steel or aluminum. It is the ideal material if you are budget-conscious. Also, stainless steel has a shiny surface, excellent moisture resistance, and corrosion resistance.

Moreover, there are a lot of other materials that can be used for the fabrication of AC sheet metal parts such as copper, steel, and other materials based on the customers’ requirements.

Why Choose Custom AC Sheet Metal Fabrication?

There are a lot of reasons why you should choose sheet metal fabrication for your AC systems or projects. Below are some of the reasons.

It is the best fit for your project. Custom fabrication means the sheet metal will be designed, cut, and formed accurately according to your project’s specifications. As a result, waste and errors will be avoided and you can save money. Also, custom AC sheet metal parts will perfectly fit your existing AC systems, unlike the standard AC metal parts.

You can save money. A custom fabricated AC sheet metal parts will surely give a tight and perfect fit which leads to lower energy consumption and efficient airflow of AC systems. Also, the AC sheet metal parts have a long service life, high resistance to damage, and corrosion. They are not easy to break and will eliminate costly repairs.

It offers quality control. When you are teaming up with a fabricator for your AC metal parts needs, you add a layer of quality control to your AC systems. So, when there are problems with the AC systems, the fabricator can help in the fabrication of new AC metal parts so you can fix the issue of your AC system.

Why Choose Custom AC Sheet Metal Fabrication?

Choose KDM for Custom AC Sheet Metal Fabrication

Here at KDM, we have a highly experienced team that is capable of fabricating custom designs of AC sheet metal parts. Our extensive experience, advanced manufacturing equipment such as precision PU foaming machines, detection machines, 3000W optical laser cutting machines, 3D flexible welding platforms, and other state-of-the-art machines allow us to provide quality and reliable AC sheet metal fabrication.

Furthermore, KDM uses high-quality and finest raw materials when fabricating AC sheet metal parts to ensure their quality and meet your expectations. Aside from that, they are all tested and approved by international standards such as ISO, ASTM, JIS, DIN, ANSI, and many more.

If you want a custom fabrication of AC sheet metal parts, KDM can be your fabrication partner. You can contact us and send your designs or specifications. We always make sure that the AC sheet metal parts or products are all fabricated according to the customers’ requirements and quality standards.

KDM AC Sheet Metal Fabrication

KDM AC Sheet Metal Fabrication Features
KDM AC Sheet Metal Fabrication Features

The AC sheet metal parts are fabricated with many advantages and features such as:

  • High corrosion resistance
  • Superior level of durability
  • Excellent temperature resistance
  • Lightweight design
  • Easy to install
  • Fire-proof
  • Excellent corrosion resistance
  • Wide variety of materials
  • Moisture resistance
  • Long service life
  • Highly customizable
  • Suitable for internal and exterior applications
KDM AC Sheet Metal Machining Capabilities

KDM offers a wide range of machining services. We are experts in processes such as:

  • Laser Cutting
  • Bending
  • CNC Machining
  • Punching
  • Forming
  • Shearing
  • Stamping
  • Riveting
  • Welding
  • Surface Painting
  • Surface Treatment
  • Assembling for the Final Product

AC Sheet Metal Fabrication for Various Applications

Bus AC Sheet Metal Spare Fittings
Bus AC Sheet Metal Spare Fittings

The bus AC sheet metal spare fittings are suitable for the AC units of vehicles such as buses. They can be fabricated using a variety of materials such as aluminum, galvanized steel, stainless steel, or custom materials. Also, they are lightweight, easy to install, durable, and resistant to corrosion.

Custom AC Sheet Metal Stamping Parts
Custom Laser Cutting AC Sheet Metal Parts

The laser cutting AC sheet metal parts have smooth edges and no burrs. They are accurately cut using laser cutting machines. Moreover, they have a corrosion-resistant finish, high durability, and wear resistance.

Custom Laser Cutting AC Sheet Metal Parts
Custom AC Sheet Metal Stamping Parts

The custom sheet metal can be stamped and fabricated into various types of AC parts and accessories such as brackets, HVAC duct flange corners, and many more. Also, the AC sheet metal stamping parts can be made using aluminum, stainless steel, steel, and more.

Die Casting Aluminum Sheet Metal Parts
Die Casting Aluminum Sheet Metal Parts

The die-casting aluminum sheet metal parts such as mount brackets, fittings, and other spare parts can be fabricated using different grades of aluminum such as ADC10, ADC12, A380, A360, A380, etc. They have high strength, smooth surface, good thermal conductivity, and are not easy to deform.

Steel Sheet AC Mounting Plate Brackets
Steel Sheet AC Mounting Plate Brackets

The steel sheet AC mounting plate brackets can be used for mounting AC units. They are designed with high load capacity, excellent corrosion resistance, smooth edges, and high durability. Moreover, they have convenient installation due to their lightweight nature.

AC Sheet Metal Fabrication Facility
Custom AC Sheet Metal Fabrication to Skyrocket Your Business

KDM supplies all types of high-quality sheet metal parts for the AC industry. Whatever designs you’ve got, we can custom manufacture them!

  • “We have been partnering with KDM for many years so I highly recommend their services and custom fabrication of AC sheet metal products. Their custom fabrication services are always accurate!”

  • “I really love working with KDM since they fabricate my custom AC sheet metal products accurately and accordingly to my needs! They are very professional and their products are ensured to be high-quality!”

  • “Thank you so much KDM for delivering high-quality and sturdy AC sheet metal products! They are all made perfectly and fit in the AC systems. They are also delivered on time and safely.”

AC Sheet Metal Fabrication: The Ultimate Guide

This guide explores some fundamental aspects of heating ventilation and air conditioning systems sheet metal fabrication process.

So, if you want to learn more about AC sheet metal fabrication, read this guide.

Materials You Can Choose to Custom Your HVAC Parts

AC Duct system

AC Duct System

Aluminum Sheet Metal Fabrication For HVAC

This is one of the largely used metals when it comes to HAVC customization.

One of the reasons behind its popularity is that it has low density when compared to other materials.

Moreover, the material has a higher affinity for oxygen.

For this reason, it forms a protective oxide layer on its surface when exposed to air.

In the HAVC industry, you could use aluminum to construct lines that transfer liquid refrigerant from the system to the compressor coil.

Aluminum material has more advantages outweighing the number of disadvantages as discussed here;

It is lightweight in nature which is why the fabrication process of HAVC parts is easier.

Corrosion resistance due to its ability to form a protective oxide layer.

The oxide layer forms on its surface preventing this material from rust and corrosion.

They are good thermal/electrical conductors.

It is less costly when compared to other metals

It can be easily recycled making it a reliable material.

Aluminum metal is abundantly available which ensures production efficiency.

However, we have a few limitations which include;

Its strength is quite low when compared to steel as opposed to the price which turns out to be quite higher.

Galvanized Steel AC Sheet Metal Fabrication

Galvanized Steel AC Sheet Metal Fabrication

This is simply zinc coated still.

This process improves the metals strength and durability.

Galvanized steel has several advantages which include;

It is free from rust due to the extra zinc coating unless it is contaminated.

Relatively affordable. The galvanization cost is usually low making it cheaper than stainless steel.

Durability is guaranteed with a life span of more than 50 years. For coastal regions, it could serve a lesser period.

Requires low maintenance cost.

You can inspect this process with ease.

Some of the disadvantages are;

Internal corrosion after quite a long period thereby leading to leakages and thereafter breakage.

Moreover, corrosion also leads to contamination.

You can learn more about galvanized steel sheet metal fabrication.

Stainless Steel AC Sheet Metal Fabrication

Stainless Steel AC Sheet Metal Fabrication

This metal is made up of iron alloys.

The iron contains two elements i.e., 1% carbon and 11% chromium.

In the HAVC industry, stainless steel materials are largely used in the construction of heat exchangers.

Other applications include; steel indispensables in the surgical industry, kitchen appliances, construction, building machines, etc.

The pros of Stainless Steel include;

Corrosion resistant.

It is hard and less prone to cracks and breakages.

Guaranteed durability.

The disadvantages include;

Stainless steel does not make the best material when it comes to welding which leaves you with limited options in the construction industry.

It is expensive, a reason why most manufacturers would go for alternative sheet metal materials for production.

A good example of this case is the automotive industry.

The material is also susceptible to stains and dirt which are easily detected.

You can learn more about stainless steel sheet metal fabrication.

Alternatively, you could use other materials include; Hot and cold rolled steel, copper and Brass.

Iron may also apply though under rare circumstances.

Consider other special requests from your clients.

How Does AC Sheet Metal Fabrication Process Work?

Design for AC system

Designs for AC system

Step 1: Design HVAC Systems And Accessories

This makes the initial step of metal fabrication for your AC systems.

For efficient working and fitting of your AC systems, you need to consider proper designing.

By so doing you ensure desired fulfillment and satisfaction of the customer’s needs while maximizing the market competence.

Before designing, familiarize yourself with the available HAVC systems and their roles.

Next, know the factors you should consider when designing you AC systems

They include; Code compliance, ductwork installation, ventilation, equipment sizing, design protocols etc.

We have design protocol manuals which may guide you to attain the best results.

Step 2: Cut Sheet Metal To Appropriate Dimension

Cut Sheet Metal

Cutting involves removal of sections of material to attain the desired usable part.

This is made possible by using the correct dimensions based on your design sketch.

Cutting is either done using the common hand tools or the standard cutting methods.

Here are some of them, just to mention a few, CNC punching press, a laser, shear, plasma, waterjet etc.

Laser cutting makes the most commonly used method in this process.

The machine that facilitates the cutting is called the laser cutter.

It has intense lens and mirrors which make it very powerful for this task.

This machine releases a focused beam of light that engraves through the metal resulting into this cut.

The machine consumes less energy and works best with thin, medium and soft gauges of metal sheets that require tight tolerances.

Water jet uses high-pressure jets to cut through.

The water is a mixture of highly concentrated abrasive substances which aid in the cutting of the sheet metal.

Abrasives are made of aluminum oxide and garnets.

The abrasives constitute of aluminum oxide and garnets.

The method is suitable for metal sheets having low melting points.

This is because they are heat-free and therefore do not contribute to distortion of your metal sheets.

Next, we have plasma sheet metal cutting.

This uses a jet of hot plasma to cut through the metal.

Ionized gases i.e., a composition of Hydrogen and Nitrogen are electrically channeled to form the hot plasma.

They are released via an ejecting nozzle under very high pressure.

It makes the best choice for any sheet gauge.

The disadvantage with it is that it is less accurate.

In addition, it is a quick process and requires less installation cost.

Another machine used for cutting is the CNC punching press

This machine uses a punch and die to make holes through a sheet metal by cutting out some sections.

To make a cut, place your sheet metal in between a punch and die and press until the punch finds its way to the die creating a hole.

The cut-out pieces are kept aside as they are useful in other processes more so blanking.

This method is best suit for thin sheet metal and does not use energy.

Step 3: Forming Sheet Metal To Form HVAC Systems And Components

Forming involves transforming the parts into required shapes.

Various processes are carried out to change and manipulate this metal sheets.

These are; bending, stamping, spinning, stretching, wheeling and rolling

Bending is done using hands or press brakes.

Hands only apply on thin sheet metals; thick ones require tools or machinery.

A press brake is used to bend the sheet metals into various shapes, preferably u and v shapes.

The angle range of channels is 0-120 degrees.

Next, we have stamping.

It is a forming process that operates like punching except that no section of the material is removed.

The process is done using mechanical or hydraulic stamping press in company of a tool and die.

Stamping is used for roles such as drawing, embossing, hemming, curling and flanging.

Spinning is done using a lathe machine.

A sheet metal has to be rotated by this machine while being presses against a tool.

The operation procedure is equal CNC machining.

It best suits round and curved shapes and could be of value in pottery.

Examples include cylinders, cones etc.

Wheeling makes the best compound curves in sheet metal fabrication.

Even though it is a less commonly used process, it is an effective method of reducing the thickness of sheet metals using rollers.

Alternatively, rolling could increase the thickness consistency of the sheet metals.

Other processes are encountered between cutting and formation processes.

This includes stretching of the sheet metals.

With the help of a die, stretching is done and bend to form contours.

The tools used here include a stretcher, dolly, English wheel, etc.

Step 4: Joining Fabricated AC Parts And Components

Joining involves bringing together of the cut sections to form respective structures.

It is necessary to give room for final touches and adjustments if any.

The processes comprise of various steps which include; welding, brazing, riveting and use of adhesives.

Welding is more popular when compared to other methods.


It involves melting of an intersection of the sheet metal and then fusing them together using a filler.

Stick, TIG, and MIG are the frequently used processes.

Brazing involves melting of the filler and not the sheet metal as for welding.

The environments that favor this process should contain hydrogen, noble gases, nitrogen, inorganic vapor etc.

Riveting is the joining of the sheet metals by embedding small pieces of the metal through the sheets

Adhesives also play a role in joining of the sheet metals.

Structural adhesives independently join the sheets together whereas machinery adhesives involve application of other methods.

Finishing is done thereafter and it entails coating, painting, sandblasting, cleaning, deburring etc.

How Do You Reduce Your Fabrication Cost For HVAC Parts

HVAC parts

HVAC Parts

Outsourcing Your Resources.

Get external suppliers to bring you goods on contract basis.

This makes the best approach to consider especially if your business is still young.

The approach is cost efficient. You will spend less on installation of equipment thereby staying within budget.

Use Modern Tools To Carry Out Fabrication.

We are leaving in a modern society where technology keeps changing from time to time.

For this reason, it is important to keep your machines and tools upgraded.

This is a long-run investment that impacts the company positively towards quality and quantitative production efficiency.

Minimal Tight Tolerance.

Tight tolerances like bend radius are key to improving the quality and value of a product.

Ensure you they only apply to key areas to help you cut down on the extra cost.

Empress Partnerships With Others.

Partnering with a team player means a joint budget.

However, this does not rule out other benefits like work quality, good equipment system, tools, and a better understanding of the process.

Choose The Best Quality And Quantity Of Materials.

Purchasing quantity materials require a high input cost, therefore making any slight mistake could lead to losses.

Be informed of the correct quantity and quality of the material you require.

Accuracy When It Comes To Designing.

We have professional experts who can help you achieve the desired product successfully.

This should be teamwork, meaning all parties are involved.

Clear communication is very key for the success of the designing process. It helps you settle for one design which is cost efficient.

Sophisticated designs may otherwise lure you into spending more.

Design Orientation.

Multiple bends will be encountered during designing. Make the right choices for your designs as far as bends are concerned.

Directional bends are known to be expensive.

Therefore, avoid directional bends by ensuring that your bends accumulate in one region so as to save on cost.

Use Of The Right Tools And Techniques.

Automated processes are more efficient in production.

The compatibility of your designs and the newly recommended automated systems is beneficial to great depths.

Fabricated sheet metal duct system

Fabricated sheet metal duct system

HVAC Metal Parts Which Need Sheet Metal Fabrication Process

The plenum- It is a distribution box responsible for heating and cooling of air.

Elbows bring about efficiency in the flow of air. This is achieved through tightening of corners.

The access door is a means of entry to the enclosed parts of the HAVC system.

An end cap- This is used to put the commercial ductwork to rest.

Flashing comprises of a sequence of metallic vent pipes whose role is to exhaust hot air from a ventilation fan.

Floor boxes- This are metallic grilles otherwise known as register boxes.

The grilles are preferably made of galvanized steel.

A manifold gauge- It is used to allow passage of air while monitoring pressure of the HAVC system.

Which Quality Standards Should AC Sheet Metal Fabrication Comply With?

Quality Maintenance of Residential HVAC Systems

This standard ensures quality and comfortable indoor environments which is healthy for users

Quality Installation Specification for HAVC systems.

For the sake of every user’s safety, you should ensure quality installation of your HAVC systems.

Quality Installation Verification Protocols for HAVC systems.

This ensures that there is consistency, transparency, and use of standard procedures.

Quality Maintenance of Commercial Refrigeration Systems

Plays a role in ensuring that maintenance requirements of commercial refrigeration equipment are adhered to.

For all your AC sheet metal fabrication solutions, contact us now.

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