Understanding the differences and selecting the best aluminium profiles – find out which type is most appropriate for your specific project.
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Screws instead of welds, aluminium instead of steel! This was the revolutionary idea of the two founders of item, Gerrit Pies and Wolfgang Rixen, that kicked off the success story of the modular item Building Kit System for aluminium profiles in 1980. The benefits are low weight combined with maximum stability, rapid assembly thanks to innovative fastening technology, cost savings compared to steel and decisive flexibility. All these advantages are currently available across more than 4,500 mutually compatible components – and the range is continuously expanding. What’s more, the anodized aluminium profiles from item have inclined groove flanks. When fasteners are used in the groove, the groove flanks press against the fasteners in the elastic range, creating additional pre-tensioning that ensures the fasteners are even more secure. When it comes to vibrations in a machine base, for example, this represents a key advantage. These days, the modular profile technology from item is used in all kinds of projects by engineers around the world, ranging from simple frames to fully automated production lines.
However, what types of item aluminium profiles are there? What are the differences between them? And which aluminium profile is best used to meet which requirements? This post addresses these questions for newcomers to the world of item. In addition to the “classic” aluminium profiles, that is to say, the construction profiles, there are also other types – Line X and the profile tubes of Profile Tube System D30. Profile KH, on the other hand, offers a metal-free, sustainable alternative to aluminium profiles, and is also used for EMC applications. You’ll find more information about this special profile in an interview on our blog.
The aluminium item construction profiles can be divided into five different types (item calls these lines): Line 5, 6, 8, 10 and 12. These different aluminium profiles are designed to meet different user requirements. Three geometric characteristics help to meet different needs, and all the lines differ in respect of the following:
In addition, there are different designs within the lines: Standard, Light and Economy. “Standard” speaks for itself. “Light” profiles are lightweight, while “Economy” profiles have a material-optimised design. In each of the two latter designs, the maximum tensile loading of the profiles is reduced. One particularly practical feature is the profile deflection calculator available alongside each aluminium profile in the item Online Shop.
It must be noted, however, that not every aluminium profile is available in all three designs. Fundamentally, item aluminium profiles are always described using the following pattern, in the item Online Shop, for example. Profile 8 40×40 1N light, natural. These descriptions can be deciphered as follows:
Line 5 aluminium profiles with a modular dimension of 20 mm are ideal for weight-optimised constructions of all kinds. Line 5 profiles can be used to create refined, stable and flexible applications. The small exterior dimensions make these profiles particularly well suited for space-saving and compact jigs, covers and handling equipment. Their low material consumption also mean they conserve resources. Line 5 aluminium profiles are available with open or closed grooves. A closed groove eliminates the problem of dirt accumulation in grooves.
Line 6 profiles with a modular dimension of 30 mm are ideal for all kinds of weight-optimised constructions. Using these aluminium profiles makes it easy to adapt the use of materials to the task at hand and rely on a slimline, robust design. Again, open or closed grooves can be used. The latter are easy to clean and also have a particularly elegant aesthetic. Line 6 profiles create functional and attractive display cases, tables and cover hoods.
Line 8 profiles with a modular dimension of 40 mm are the most frequently used of all the item aluminium profiles worldwide. Their great versatility makes Line 8 profiles the perfect choice for machines and systems of all sizes. Thanks to their design, these aluminium profiles are light and robust, offering a wide range of uses with a service life of many years. This robust aluminium profile for load-optimised constructions is available with open or closed grooves. Profiles with closed grooves are particularly easy to clean and can be combined with conventional profiles as required. Line X (more about this further down) uses the Line 8 profile groove.
Line 10 profiles with a modular dimension of 50 mm are ideal for load-bearing profile constructions. The 10 mm groove width makes it possible to work with accessories with thread size M10. This increased load-carrying capacity can be fully utilised thanks to the strong groove flanks. The fasteners also play a part in this. All Fastening Sets 10 consist entirely of high-performance steels so that pre-tensioning is always available in full. As a result, there is reliable protection from loss of preload. The maximum permissible load-bearing capacity is 7000 N. Various different cross-sections are available for Line 10 aluminium profiles. The weight-optimised Profiles 10 E can be used in areas involving lower loads. The end faces and the grooved sides of the aluminium profiles can be closed using matching plastic caps and cover profiles.
When it comes to creating stable, heavy-duty frame structures, Line 12 profiles with a modular dimension of 60 mm are the ideal choice. This is the strongest profile line in the item Building Kit System. Thanks to the strength of the profile flanks, tensile loading of up to 10,000 N per screw connection is possible. What’s more, the incline of the aluminium groove flanks down into the groove ensures excellent resistance to loss of preload. If areas of the basic frame are only placed under lower stress, the light version of Line 12 can be used.
Constructions based on Line X exhibit the best possible combination of elegance and cleanliness. A minimised edge radius results in a seamless connection between the profiles, with no protruding edges. This produces constructions that are easy to clean, where dirt and deposits have no chance of accumulating. These aluminium profiles are therefore perfect for building machines and systems that need to be kept spotlessly clean. Line X aluminium profiles are available with open or closed grooves. The variants of Line X profiles with closed grooves are ideal for use in cleanroom production.
Alongside construction profiles, profile tubes are another popular type of aluminium profile. Profile Tube System D30 has been specifically designed to meet the requirements of the fast, sophisticated and solution-oriented factory equipment engineering typical of lean production. The system’s (Profile) Tubes D30 can easily be cut to the desired length and connected using fasteners. Up to four fasteners can be connected to the same intersection point on a Profile Tube.
A special geometry is what makes the aluminium profile tubes so efficient. Four slimline, undercut flanks are enveloped by Fastener D30. Depending on the direction, the fastener is mechanically locked, but its connection is friction-based in the main load direction.
A special geometry is what makes the aluminium profile tubes so efficient. Four slimline, undercut flanks are enveloped by Fastener D30. Depending on the direction, the fastener is mechanically locked, but its connection is friction-based in the main load direction. Struts can be attached separately on each of the four sides. One person working with a single tool can make all the necessary connections. The five colours of Profile Tubes D30 provide quick orientation and help to clearly differentiate between areas or frames. The silk-matt powder-coating is abrasion resistant, and the anodized Profile Tube D30 and the black powder-coated Profile Tube are both ESD-safe. There are three standard lengths for the anodized Profile Tube D30 – 3000, 4000 and 6000 mm. Alternatively, a custom cut-off that has been sawn to size with millimetre precision can be ordered.
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Aluminium profiles are extruded shapes made from aluminium that is commonly used in construction and manufacturing. They are lightweight, durable, and offer excellent strength-to-weight ratios, making them ideal for a wide range of applications.
Aluminium profiles are used in construction for window frames, door frames, curtain walls, and roofing systems. They are also commonly used in transportation and the manufacturing of various products such as furniture, electronics, and consumer goods.
Aluminium profiles come in a variety of shapes and sizes, ranging from simple square or rectangular profiles to complex profiles with intricate designs. They can be anodized or painted to provide corrosion resistance and improve their aesthetic appeal.
When selecting aluminum profiles for your project, several factors must be considered. Here are some things to keep in mind:
1. Purpose: What is the purpose of your project? Are you looking for something decorative or functional? Do you need strength and durability, or is the primary concern?
2. Size: Consider the size of the aluminum profile you need. You may require different sizes for different parts of your project, so make a list of all the sizes you need.
3. Shape: Not all aluminum profiles are the same. There are various shapes available, such as round, square, rectangular, and more. Consider which shape will work best for your project.
4. Surface finish: Aluminum profiles come in a range of surface finishes. Determine which finish will best suit your project. For example, a polished finish could be ideal for a decorative project, while a matte finish may be more appropriate for a part that will be visible but not decorative.
5. Thickness: The thickness of the aluminum profile will directly impact its strength. Consider the load that it will need to bear and choose an appropriate thickness accordingly.
6. Alloy: There are different types of aluminum alloys, each with its unique properties. Look for an alloy that suits your needs in terms of strength, corrosion resistance, and machinability.
7. Supplier: Ensure that you buy your aluminum profiles from a trustworthy supplier. Look for a supplier known for high-quality products and one that can provide customized solutions.
8. Cost: Finally, consider the cost of the aluminum profiles. Look for a supplier that offers a competitive price while still maintaining high-quality standards.
In conclusion, when selecting aluminum profiles for your project, keep in mind the purpose, size, shape, surface finish, thickness, alloy, supplier, and cost. Considering these factors, you can make an informed decision and choose the right aluminum profiles for your needs.
Guangdong Zhonglian aluminum profile Co., Ltd. is a manufacturer of aluminium profiles with well-equipped testing facilities and a strong technical force. With a wide range, good quality, reasonable prices, and stylish designs, our products are extensively used in the construction industry and other industries. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
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