Your Professional Aluminum Extrusions Suppliers

Customized aluminum sections

Provides reliable and quality aluminum extrusions

Quick lead time 

ODM and OEM service provider 

ISO certified

Why Choose LW Aluminum Extrusions?

LW promises to provide you with the best of materials. Aluminum extrusions are available to all the customers. LW can customize any product’s quality, shape, and design based on customers’ demands. 

The Professional R&D department is there to help you improve your brand through customization. Fifteen years of excellence make LW one of the finest aluminum extrusions providers globally.

With LW, you can sort out all your problems at a one-stop station. Focusing on customers’ needs, LW provides after-sales services at their best. You can count on us for any issues that may ease customer satisfaction. 

Thank you for choosing LW. Feel free to contact LW!


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LW Aluminum Extrusions

Different Aluminum Extrusions Products to Meet Your Requirements

round tube aluminum extrusions
Round Tube Aluminum Extrusions

Commonly used aluminum tubes are 6061 and 6063. Other series are 1000, 2000, 3000, 5000, 7000. For more precision consult our sales engineer.

angled aluminum extrusions
Angled Aluminum Extrusions

The L-shaped aluminum angle is made from 6061 6063 in T5 and T6 material. Provides different surface treatments like mill finished, powder-coated color with RAL, natural or Matt anodized, and electrophoresis coating.

Here you will find 1000 series to 7000 series aluminum material. Customization available but commonly used is 0.4-50mm thickness and rectangular, round, triangle, square shapes.

extruded heat sinks
Heat Sink Aluminum Extrusions

They are made of aluminum and copper using advanced thermal solutions. Thickness ranges from 0.4mm to 20mm. It has round, flat or square shape. LW may customize all sizes, shapes, and colors.

windows and door profiles
Aluminum Extrusions for Windows and Doors

General profile thickness is 0.8mm-1.4mm. Customization for color shape is available. 6000 series for material and T3 to T8 temper is used.

It is suitable for building, workstations, CNC, etc.  6000 series aluminum alloy, T profile shape. Customization is available.

aluminum extrusions solar panel frame
Aluminum Extrusions for Solar Panel Frame

Hundreds of molds are available. They are used to fix solar module components. Protects battery and enhances service life.

LW follows strict lab testing, 99.7% A00 aluminum ingot. It comes in 6063, 6061 aluminum alloy. These are suitable to carry sports gear and other luggage. .

Benefits of LW Aluminum Extrusions

One-Stop Service

With LW, you can reduce your production costs for aluminum extrusions fabrication such as CNC machining, punching, bending, etc.

Stable Delivery Time

LW is here to eliminate your concerns by delivering on time. You will get a stable delivery time of 20days or less.

Variety of Selection

The variety of aluminum extrusions is endless in terms of shape, size, or color. It allows you to choose what is ideal for your project.

Saves Tooling Cost

Our engineers will allow you to experience cost-effective aluminum extrusions. Save your money, improve efficiency and explore better aluminum extrusions with LW.


Our engineers will help you create a unique experience with LW from extruding to final finishes. We will make products based on your specifications.

Excellent Support Service

Our experienced engineers and sales team provides fast response and solutions to all your problems.

Your Aluminum Extrusions Design Guide

Customization is the key at LW. You can get high-quality extruded products for all your projects. Keeping in view, the customers demand LW make sure to provide you with advanced quality control methods. 

  •       Sizes

LW produces a limitless variety of aluminum extrusions profile. You can find whatever size is convenient to your demand. Therefore, the engineers will help you choose designs and prototypes according to your idea.

  •       Colors

Standard colors for aluminum are usually bright such as dark bronze, black, dark green, and white. Any other color is provided with your specifications. But in general, LW includes silver, white, grey, black, golden champagne, wooden, etc.

  •       Shapes

Aluminum extrusions are available in different unique shapes for you to choose from. Some shapes include square, round, flat, hollow, semi-hollow, t-slot. I, T, L, Z, H, U. LW is here for better services according to your specifications.

Different Applications of Aluminum Extrusions

aluminum extrusions for construction and building material
Construction and Building Materials
aluminum extrusions for industrial use
Industrial Use
aluminum extrusions for machinery and equipment
Machinery and Equipment
aluminum extrusions for electronics
aluminum extrusions for automobile
aluminum extrusions for energy
aluminum extrusions for horticulture
aluminum extrusions for medical
aluminum extrusions for office furniture
Office Furniture

Aluminum Extrusions Profile Verdict

Aluminum Extrusions are emerging as one of the significant industries ahead. In the nearer future, this unique and valuable metal will find its way into more industry applications.

Aluminum extrusion is a light and low-density product that can be recycled easily without toxicity and metal pollution.

With LW’s finest 15 dedicated years of experience of aluminum extrusions, we can OEM, ODM and custom all industry-based products according to customers’ specifications.

From manufacturing to delivery time, LW never fails to disappoint customers. With ISO certification, we ensure you deliver quality products. We make sure to inspect 100% before shipment.

Our support team is always there to help you with a quick response.

Please write to us through our email or contact us to complete your aluminum extrusions project quickly.

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Your Professional Aluminum Extrusions Manufacturer And Supplier in China

Do you need to use aluminum extrusions for a project? Or, maybe you have questions about aluminum extrusions?  

Or, maybe you need a better alternative to heavier metals like steel.

If so, then aluminum extrusions might be your best solution!

Understanding aluminum extrusions can be complex because of the knowledge and terminology required. But fear not.

We have done all the necessary research for you to understand aluminum extrusions.

In this guide, we have answered all the commonly asked questions about aluminum extrusion. So keep reading.


Aluminum Extrusion - The Ultimate FAQ Guide


The process which make aluminum is shaped into one mold and bring all kinds of different shapes called aluminum extrusion.

You can understand the principles of aluminum extrusion by pressing your toothpaste. But how?

Aluminum extrusion process need to use some material like  powerful plungers, billets and dies

The ram is like your hand pushing the aluminum(toothpaste) through a die(toothpaste tube). The result is a material in the shape of the die’s opening.

Before aluminum can be extruded, it must be made soft enough to extrude. The billet is made soft by heating the billet to 400 – 500 degrees celsius.

Through the designed die, aluminum will be pushed by soft billet , then it could form the aluminum extrusion. A powerful ram does the pushing. This process produces a newly formed shape.

This billet is a type of material made of aluminum alloy.

Below is a diagram of the extrusion process:

Aluminum extrusion process                                                   Process of Aluminum extrusion

The aluminum billet is heated and then loaded in the extrusion die container, then a powerful ram forces the aluminum billet through the opening of the die.

The extrusion process produces a newly shaped material.


You can buy aluminum extrusions from different places.   

But if you want premium quality aluminum extrusions, then you can buy them from LW.

LW is one of the most professional aluminum extrusion suppliers in china.

Because LW specializes in making cutting-edge quality products in less than the expected time, they are among the most trusted aluminum extrusion suppliers. But that’s not all.

LW also offers a wide range of customization options to a wide range of industries worldwide.

This means you don’t have to waste your precious time and effort looking for the right aluminum extrusion supplier.

Simply go to our website and find the aluminum extrusion you need.


Cutting aluminum extrusion can be done by different methods.

But one of the best methods is to use a carbide-tipped saw.

Carvide tipped wood cutting saw

Carbide tipped wood cutting saw

Also, the blade you use must be good for cutting non-ferrous metals.  

The grade of carbide used for the cutting saw must also be considered when cutting aluminum extrusion.

In order to get good cutting result for aluminum extrusions, you need to consider the suitable teeth for blade.

Through below steps, you could easy to cut aluminum extrusion by using a cutting:

  1. Select the tools

The first and important step is to choose correct tools for cutting the aluminum extrusion.

For this method, the blade you use must be carbide-tipped.

Remember that by reducing the diameter of the blade, you can achieve better results as you cut the aluminum extrusion.

  1. Apply cutting Lubricants

Applying lubricants is recommended to avoid the blade from gripping the aluminum extrusion, which can cause serious injuries.

Examples of cutting lubricants include saw wax and standard oil. The application of lubricants is also for preventing the blade from slipping.

Also, lubricating oil prevents them from forming sparks.

  1. Secure the Aluminum Piece and Cut

C clamp

 C clamp

Now you must secure the piece of aluminum extrusion with a C clamp. The piece of aluminum can now be moved and held with a push stick.

Next, you move the aluminum piece through the blade to cut it.

Also, make sure to fix the blade or aluminum extrusion at a specific angle. This ensures that the blade will cut through at a certain angle.

It is better to use a wood-cutting saw over a laser cutter. Here’s why?

If you use a laser cutter to cut aluminum extrusion, it will bring horrible results because:

  1. A laser cutter usually produces bad results:

Firstly, as the thick aluminum extrusions have fixed reflective surface, it will aluminum extrusion are too difficult to be cut with a laser.

Secondly, aluminum extrusions can’t withstand high temperatures. These high temperatures produce burrs on the surface of the aluminum extrusion.

  1. High costs of controlling laser cutting speed:

The speed of the laser must be controlled. A fast cutting speed will create burrs on the aluminum extrusion.

In contrast, if the cutting speed is too slow, then the aluminum extrusion will crack.

In summary, using a laser cutter to cut aluminum is not efficient. It is also costly.


Follow these ten easy steps to understand how to make aluminum extrusions:

  1. Yous start the aluminum extrusion process by sourcing and preparing the die. Then you could take the die close to the extrusion press.

You have to preheat the die to between 400-500 degrees Celcius. This preheating protects the die from thermal stress, which is bad.

This heating also stops the aluminum from cooling and sticking to the machine or the die.

  1. Next, the billet, which is a block of aluminum alloy, is heated to 400-500 degrees Celcius in an oven.

This ensures that the aluminum billet is soft enough for the extrusion process.

  1. The next step is to move the soft billet to the extrusion press.

At this point, a lubricant is applied to the billet and the ram. This lubricant prevents them from sticking together.

  1. After the billet is loaded into the press, a powerful ram pushes the billet into the container of the execution press. The soft billet now fills the walls of the container.
  2. Next, pressure is applied to push the soft billet against the extrusion die. The result is a fully formed profile.
  3. Next, the extrusion is pulled out to a runout table and quenched by water or air.
  4. Next, the aluminum extrusion is separated from the extrusion process.

This separation is done by cutting it with a hot saw after it has reached the desired length.

  1. Next, the extrusions are moved to a cooling section, where they will be cooled to room temperature before stretching.
  2. Next, you stretch the extrusions to correct the warps and deformities caused by the high heat.

Here, the extrusions are mechanically gripped from both ends, then stretched to meet the specification.

  1. Once the aluminum extrusions are straight and fully hardened, they are moved to a saw table. Here, they will be sawed to specified lengths.


The process is simple; a malleable aluminum alloy billet is pushed with force through a die (a particular device used to shape the billet) to create the desired shape.

Next, the billet is made soft enough to be extruded by heating it to 400-500 degrees celsius.

Once it is extruded, it is quenched with water before cooling to room temperature.

Once cooled, the extrusion is then stretched to correct any warps and deformities.


The strength of extruded aluminum depends on the heat treatment or temper of the aluminum alloy used.  

Below is a list of the different types of aluminum extrusion with their measured strength:

  1. 1100:

This type of extruded aluminum is soft, and it usually has no extra ingredients added.

 But note, it cannot be heat treated, though it can be used to create complex shapes.

It has a yield tensile strength of 4,930 psi and ultimate tensile strength of 13,000 psi.

  1. 3003:

This type of aluminum alloy has an ultimate strength of 29,000 psi or 200 MPa and tensile yield strength of 27,000 psi or 186 MPa.

The 3003 aluminum series is moderately strong. It is mostly used for heat-exchanger tubes.

  1. 6063:

The strength of the 6063 series differs by temper.

For example, the 6063 T6 temper has a minimum yield strength of 23,000 psi (160 MPa) and a minimum ultimate strength of  28,000 psi (190 MPa).

But the 6063 T1 temper has a minimum yield strength of 9,000 psi (62 MPa) and a minimum ultimate strength of 17,000 psi (120 MPa).

  1. 6061:

The 6061 series is stronger than the 6063 series. The strength also depends on the temper used.

For example, the 6061 T6 tempers are specially treated to reach maximum yield strength (or maximum yield strength) for the 6061 series.

Its minimum yield strength is 35-39 Ksi (240-270 MPa), and its ultimate tensile strength is  42-45 Ksi (290-310 MPa).

  1. 7004:  

The 7004 alloy is a member of the 7000 Series. 7004 is heat treatable, and it can also be reasonably extruded.

It has an ultimate yield strength and tensile strength of 40,000 psi and 50,000 psi, respectively.

The 7000 series is most commonly used for bicycles, sporting equipment, and motorcycle applications.


Aluminum extrusions can be bent with different methods. Here are the five most common methods for bending extrusions:

  1. Ram/Push bending:

Push bending

 Push bending

In the push bending method, a bending die is used to bend the aluminum extrusion.

The aluminum extrusion is bent to a new shape by using force to push it on the bending die.

This method of bending method allows you to place multiple bends close to each other.

Though only one bend can be made at a time, this type of bending has good bend precision. It is also inexpensive, and the cost per-bend is low.

  1. Rotary draw bending (Hydraulic):

Rotary draw bending

 Rotary draw bending

In this method, the aluminum extrusion is placed onto a bender.

The aluminum extrusion is held in place with a clamping block, and a sliding or stationary pressure die.

Then the aluminum extrusion is bent by a round bending die. Here, the aluminum extrusion is bent as the round bending rotates.

Pipes and round tubes are applications where this type of bending is mostly used. For example, they can be used for handrails.

  1. Three-roll bending:

Three-roll bending

 Three-roll bending

Three rolls are used to bend the aluminum extrusion. The process works by arranging three rolls in a triangular shape then moving the aluminum extrusion through the rolls.

The aluminum extrusion is bent as it is slowly moved across the three rolls.

Often, it is used for shaping large pieces used in construction or architectural applications.

Also, this type of bending has a limit of one bend per cycle.

  1. Electric rotary draw bending:

The electric rotary draw bending shares the same principles as the hydraulic rotary method. They are both a form of rotary draw bending.

But the electric method is faster, and the bends are more accurate and easier to repeat.

This is because a programmable machine automates the rotations and angles.

This bending method is perfect for use cases where you need to place multiple bends close to each other.

  1. Stretch forming:

Stretch forming

 Stretch forming

In stretch forming, the extruded aluminum is clamped at both ends, and then it is stretched to hold it in tension.

Next, a die is placed at the mid-point of the extruded aluminum, and then a machine pulls the clamped ends of the extruded aluminum around the die until it reaches its desired form.

A common use for stretch forming is for parts with a large bend radius because the minimum radius of the bend is generally 2-3 times greater than other bending methods.

All of these bending methods are meant to be used in different applications.


There are six common ways you can use to connect aluminum extrusions:

  1. Screw port:

Screw port

Screw port

A screw port is the most common way of connecting extruded aluminum.

Self-tapping screws are used to screw multiple pieces of extruded aluminum together.

This method of connecting aluminum extrusions allows for strong fixing and easy disassembly.  

  1. Snap-fit:

Snap fit


The snap-fit is an easy and quick way to connect two extrusions.

The lead-in barbs allow the top extrusion to slide and catch the bottom extrusion in a snap-fit connection.

This method makes recycling easier because it doesn’t need any foreign fixing.

It would help if you used a reverse chamfer to stop the barbs from creating a permanent snap-fit.

  1. Nut crack:

Nut crack

Nut crack

In this method, you will fix a nut or bolt between the channels or flats. These nuts are fixed in a way that prevents them from slipping.

Many nuts or bolts(fasteners) can be used around the same space.

  1. Interlocking:


Interlocking is a simple and effective way to connect your aluminum extrusion. It is also effective.

In this method, you will slide apart over another part. This interlocking method provides a strong and quick fix.

Aluminum extrusions with both male and female parts are used as lid and base.

  1. Corner cleat:

Corner cleat

Corner cleat

Similarly, shaped aluminum extrusions can be connected at a certain angle using a corner cleat. A channel is created to allow a cleat to pass.

You can screw the corner cleat to hold it in place. Or you can use a corner cleat with tiny barbs attached to it.

These tiny barbs will cut into the aluminum extrusion by creating friction.

  1. Hinge:



Aluminum extrusion is also commonly connected by using a hinge. This method also allows movement of the connected extrusions.   


Straightening bent extruded aluminum is neither easy nor practical.

In reality, your only option for straightening extruded aluminum is to clamp both ends then apply heat to the area you want to straighten.

Once it is hot enough, you can bend the extruded aluminum to the desired shape.

This method is not advised because it may end up tearing, kinking, or twisting your extruded aluminum.

Also, because of the thickness of most extruded aluminum, trying to bend it back into shape is impractical.

The best time to straighten extruded aluminum is during the stretching process. This is the point after the aluminum has been extruded and partially cooled.

Here, the aluminum is clamped at both ends, and then it is stretched until it meets specifications.


There are different methods you can use to tap extruded aluminum.

But, using a drill is one of the easiest to tap aluminum extrusion. You should use 1/4 20 threads and a 1″ bolt for this method.

A hand drill

 A hand drill

To tap holes in extruded aluminum using a drill, follow these easy steps below:

  1. You can start the process by clamping the extruded aluminum to hold it in place.
  2. Next, lubricate the area of the extruded aluminum you want to tap.
  3. After lubricating, you then use the drill to tap the holes in the extruded aluminum.

You can also tap extruded aluminum with a specialized tapping arm.


Tempering extruded aluminum is a process of heat treatment. The process of tempering is used for iron-based alloys to increase their toughness.

The heat-treatment is a process whereby the extruded aluminum is heated then rapidly cooled. The extruded aluminum is usually cooled by water or air.

Water is better to use over air because using air to cool extruded aluminum will cause it to precipitate, which will affect its hardness or strength.


There are different ways to remove the mill marks from your extruded aluminum.

You can use a machine to clear the marks, or you can treat the aluminum with polish, industrial etch, or another surface finishing method.


The type of aluminum alloy you are using determines the heat needed to warp it.

Because aluminum extrusion manufacturers use different aluminum alloys for various purposes, it is hard to tell how hot it can get before it warps.

Generally, it will begin to warp as it reaches its melting point. So it is essential to know the melting point of the aluminum alloy you are using.


On average, it is estimated that extruded aluminum can hold 10,000 to 75,000 pounds.

But in reality, the amount of weight extruded aluminum can hold depends on factors such as the average length or the type of aluminum alloy used.

Also, if you support both ends of the aluminum extrusion, then all the weight will be centered in the middle of the extrusion.

There are different series of aluminum extrusions, and all of them have various holding capacities.

For example, the 6061 aluminum can hold up to 35,000 pounds.

Please note that the outer diameter of the extruded aluminum also affects the amount of weight it can hold.

This means that the weight you apply should also depend on the thickness of the extruded aluminum.


A machinist in a machine shop does the machining of extruded aluminum with powerful cutting tools.

To cut the aluminum extrusion, you will need a stronger cutting tool than the extruded aluminum.

Machining extruded aluminum uses a cutting tool to remove small pieces of material such as mill marks from the aluminum workpiece.  

There are many types of machining processes or operations. But there are three primary machining operations:

  1. Milling operations
  2. Drilling operations
  3. Turning operations

Other machining operations are classified as miscellaneous, such as planing, sawing, boring, shaping, and broaching.

Machining is also a type of subtractive manufacturing, where pieces of material are removed from the surface of the extruded aluminum.

In contrast, additive manufacturing adds material to the surface of the extruded aluminum.


To design your very own custom aluminum extrusion, you will need to create a custom die or profile.

You should also consult a professional aluminum extrusion manufacturer such as LW.

At LW, we will help you design the perfect aluminum extrusions for your projects. Simply contact LW through our website.


The use of aluminum extrusion is limitless. Their easy assembly, modularity, and strength are used to build workstations, tool racks, display units, carts, machine bases, safety enclosures, and much more.

It is also used in telecommunications, electronics, solar/renewable energy, automotive, mass transit industries, and so on.

Sourcing and preparing the materials is the first step to building with aluminum extrusion.

Next, you assemble the extrusions and create the frame.

Aluminum extrusion frame

Aluminum extrusion frame

Once framed and assembled, you are ready to use the aluminum extrusion for your project.

Also, you should use a t-slot design because it can easily be assembled and disassembled without welding, nailing, or permanently fixing them together.

This means you can reuse the material by using the t-slot design.


Aluminum extrusion can be hazardous when you are exposed to aluminum fumes for more than 8 hours a day.

Inhaling aluminum fumes can lead to “metal fume fever.” Also, the process of aluminum extrusion requires a high amount of heat.

These high amounts of heat can be extremely dangerous to your body if you are exposed to it.

When you are working with aluminum extrusions, you have to wear protective gear to protect your body from high levels of heat.

Also, you can wear a gas mask to prevent your nose from inhaling the aluminum fumes.


The standard commercial tolerances of aluminum extrusions have a lot of affected factor, like   types of aluminum profile,   types of alloy, product size and thickness of aluminum wall.

The tolerances refer to the limits of variation by which a product or part may be produced to.

 You can use the guidelines below to get the general standard tolerances for aluminum extrusion:

  • For straightness:you will use 0.125 per foot of length
  • For twists:you will use 0.5″ per foot of length
  • For angularity:you should use between ±1and ±2
  • For wall thickness:you should use between ±10 of the specified dimension

For linear cross-section dimensions: you should use ±.008″ per inch of the dimension.


Aluminum extrusions come in different sizes. To measure the size of aluminum extrusion, you have to measure the size of its cross-sectional dimension (this is how it is fit in a circumscribing circle).

Different extrusion sizes

 Different extrusion sizes

Currently, different aluminum extrusion manufacturers provide extrusions of various sizes.

You may commonly see aluminum extrusion sizes such as 45x45mm (585mm), 45x90mm (585mm), 90x90mm (585mm), 22.5×22.5mm (585mm), Aluminum extrusions, and so on.

The aluminum extrusion size you need is determined by the application you want to use it for.

Also, the size of the extrusion press needed for the extrusion process will be determined by the aluminum profile’s circumscribed circle (cc).


Aluminum extrusion can be made into various shapes.

The most common shapes made with aluminum extrusions are angles, channels, and rectangular tubings.

Rectangular aluminum tube

Rectangular aluminum tube

With just these three shapes, aluminum extrusion manufacturers can make parts for the computer, appliance, architectural, and construction industries.


Extruded aluminum channel

 Extruded aluminum channel

Also, other shapes can be made with aluminum extrusions such as division bars, H and I beams, sliding t-track, pipes, corner extrusions, and open seam square tubing.

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