Aluminium tubes - Import export

Seamless aluminium tubes can be ordered in all commercially available aluminium alloys in addition to high strength aluminium alloys which are required for more demanding applications. ALUnna has a number of extrusion presses equipped with mandrel piercing capability. This allows us to extrude a large range of extruded tubular dimensions from a number of different billet diameters. The size range for seamless extruded tubes ranges from 17 mm to 300 mm in diameter.

Aluminiumwerk Unna AG is specialised in the production of Aluminium tubes. The Aluminium tubes are extruded on site using two possible methods. These are either Seamless extrusion or Porthole extrusion. It is quite simple to distinguish between the two extrusion methods. In seamless extrusion, a mandrel is positioned and fixed inside the extrusion die, creating the inner contour of the tube. In porthole extrusion, the mandrel is fixed and is supported by a number of integral bridges affixed to the outer portion of the extrusion die.

Depending on the application, tubes may require subsequent drawing following the extrusion process. Examples of this are: a requirement for a high degree of dimensional control and/or the need for tight tolerances, where the final outside diameter and/or wall thickness of the extruded tubes can only be achieved by subsequent cold drawing, where the final mechanical properties for non-heat treatable alloys are to be achieved by strain hardening (drawing) or where special requirements exist for the microstructure of the tubes.

Seamless tube elbows made of aluminum for welding.

compact internal coating machine for collapsible tubes

internal coating machine for collapsible tubes

aluminum tubes with flange for connecting hoses together. Special sizes and lengths are possible on request.

Tubes made of aluminum offer various advantages, such as corrosion resistance, low weight and high stability. Aluminum tubes are very durable and can be recycled without loss of quality. A wide variety of constructions can be realized with tubes made of aluminum.

In the aluminium industry, the porthole extrusion process is the standard method for the production of extruded tubes and profiles. The process is limited to a number of aluminium alloys. However, most of the commercially available medium strength aluminium alloys such as EN AW-6060 or EN AW-6082 can be extruded by porthole extrusion.

Heat protection tubes are made by layering several kinds of aluminum alloy foil and other materials, such as fiberglass and plastic with corrugations. The excellent reflectivity of the aluminum alloy on the external surface reflects radiant heat, and its insulating power additionally serves to protect the aluminum flexible tube’s content from heat sources. These products have great flexibility but high dimensional stability, and they can be compressed or extended as required. They can also be fastened or mounted easily by crimping the end fittings.

robolink® connecting tubes d26 Customized assembling (length) Inner contour (anti-twist device) Feedthrough of ropes and pneumatic hoses, cables Corrossion-resistant Light Stable robolink® multi-axis joint robolink® Configurator

RK tube connectors – the flexible alternative to welded connections The clampable tube connectors from RK Rose+Krieger are a cost-efficient solution for the positive and ready detachable connection of a diverse variety of systems – without the need for drilling and welding. Depending on the field of application and the expected load, RK Rose+Krieger offers tube connectors made of plastic (Light Clamps), aluminium (Solid Clamps) or stainless steel (Robust Clamps). The Solid Clamps tube connector system also includes the RK monitor mounting for the fixation and ergonomic adjustment of monitors and touch screens used in industrial applications. Say goodbye to welding – that could be the motto of the clampable RK tube connectors The simple assembly technology of the clamping elements eliminates the need for time-consuming and cost-intensive drilling and welding work.

CORMIFLEX® tubes are folded spiral-seam pipes made of high-grade steel precision strip. Reaching up to 350°C, their high temperature resistance is predominantly used for exhaust gas routing in passenger car, utility vehicle, RV and marine heating units. CORMIFLEX® PLUS bears additional resistance against corrosion due to salt and other aggressive agents.

We produce aluminium pipe bends with the following characteristics and product specifications: DIN EN 573-3, 755-1, /-2 /-9

Heat protection sleeves and mats extend our expertise in protective aluminum flexible tubing to other shapes and uses. Layers of aluminum foil are combined with fiberglass for products that can withstand temperatures up to 750°C.

The noise levels in pipe and rod raising systems can be very high. A chute lined with secutex pipe modules ensures that noise levels are reduced and that surfaces are protected. The secutex material with inset perforated plates is particularly wearresistant and cushions the movement of pipes and rods very well. The cast sections are attached using drilled attachment holes. Segment sizes and joins are manufactured according to client requests.

The light weight and pliability of aluminum make it easy to work with and can streamline installation. In addition to the weight advantage and ductility, aluminum provides a complete barrier to light, moisture and magnetic waves. Impermeable to all gases including oxygen, aluminum also provides superior fireproofing capabilities for both industrial and residential construction. Aluminum insulation offers good noise reduction properties along with resistance to corrosion and heat. Not only does this improve interior environments, it also increases product life and efficiency. These proven characteristics continue to make aluminum the leader in insulation and the preferred choice for all types of building and construction.

Suction lances / suction tubes can be delivered in different diameters right from stock. We also can manufacture according to your drawing and/or sketch or sample. material: stainless steel AISI 304 or aluminium AlMgSi 0.5 F22 in all common tube dimension 40.0 / 50.0 and 60.3 mm right from stock special versions can be realised at short notice and for short delivery]

Air flow routing tubes are designed to channel different kinds of air to appropriate destinations. If you have a specialized vehicle and need superior flexibility in your air duct tubing, these products lead the industry. CARADUCT® flexible tubes are multi-layer, grooved tubes that are wound from a combination of aluminum and paper layers. They possess a particularly high crushing strength and have very good insulation properties. Through high flexibility and small bending radii, they offer good space usage, particularly when laying out in corners. Dükerrohr is a twin flexible tube distinguished by a particularly high insulation effectiveness to reduce temperature drops in the warm air ducting. Since it is installed outside of the vehicle, it carries additional protection against water and oil splashes.

Our OHLER product line is specifically designed for use in automobiles and caravans. Novelis is one of the leading suppliers of flexible tubes and hoses for the automotive sector with products used for heat protection, air ducts, exhaust pipes, thermal insulation and energy absorption.

By creating specialized aluminum alloys, pioneering new treatments and combining aluminum components with other materials such as paper, plastic and fiberglass, Novelis has become the global quality leader for the transportation manufacturing industry. We have created a range of transportation manufacturing products that provide insulation against heat, sound and gases, high strength so components remain effective under pressure, and superior flexibility for a full range of designs and implementations. Key Novelis aluminum components include heat exchangers, heat protection mats and sleeves, energy absorption elements, hoses, silencers and flexible tubes, including heat protection tubes, air ducts and exhaust pipes. Novelis is a leading supplier of light-gauge, narrow-slit aluminum fin stock (bare and clad) and brazing sheet used in the production of heat exchangers.

RK tube connector – unbeatable variety Thanks to their simple clamping principle, the aluminium tube connectors enable the fast assembly of both round and square precision tubes. The huge diversity of this system is what makes it an attractive and cost-effective alternative to conventional welded connections. Our application expertise and the experience we have gained over several decades as a manufacturer of clamp connectors give you security for individual handling of RK tube connection systems. Connecting tubes with different diameters and cross sections to one another The cast aluminium or extruded aluminium tube connectors impress with good mechanical properties, a wide range of variants and optimum value for money. The Solid Clamps product range currently comprises clamp connectors with a diameter of 8-80 mm for round tubes and of 20-80 mm for square tubes. More than 170 basic types in over 400 different variations are available.

The materials steel and aluminium ensure that the tubing clamp stop-it metal is extremly heat resistant and sturdy. The tubing clamp is available in four different sizes, for hose diameters up to max. 30 mm. The tubing clamp can be used wherever the flow in hoses with liquids or gases needs to be regulated or stopped. Stepless flow regulation: With the tubing clamp stop-it's knurled screw, a stepless, delicate flow regulation or complete stop of the flow are possible, even for existing hose connections. The hose is compressed over a wide area against the sturdy steel hook in order to prevent it from being damaged.

Tubing Aluminium

Aluminiumwerk Unna AG one of the world’s leading manufacturers of aluminium alloy tube. We produce a variety of specialist aluminium alloy products. Our core focus is the production of aluminium alloy tube and tubular profiles. These can be offered as seamless extruded or porthole extruded products. The extruded products can also be cold drawn making it possible to offer a comprehensive range of final dimensions.

Tubing White aluminium RAL 9006

The elegant design of the aluminium tubes makes every façade an eye-catcher. Wall spacers and tensioning cord "storm" for banner mounting included. When installing the frame, 35 mm wall spacers are always considered as an addition to the frame outside format. The listed systems were compiled on the basis of static calculations.

Industrial condenser dryer DH 65 SThe compact industrial dehumidifier DH 65 S dries up to 80 liters per day This condenser dryer is an equally powerful and economic dehumidification solution for various dry keeping applications during industrial processes or product storage. In addition to the hot gas automatic defrost system, the DH 65 S comes with an aluminium tube evaporator without fins which permits an effective dehumidification performance even at a low humidity level. Moreover, the modular refinement of the electrical system and the water-bearing components of this industrial dryer was realized according to European standard. Hence, with the DH 65 S you have a particularly economic dehumidifier for reliable permanent drying applications. Owing to its sturdy swivel casters with RollStop catch, this drying unit can easily be transported from one application site to another.