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  5. Aluminium strut profile 90x180

Aluminium strut profile 90x180

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90x180 mm anodised aluminium strut profile with twelve 10 mm slots: heavy cross member and base for gantries, machine bases and roller guides. Ix = 2138.3 cm⁴ mounted upright, 17.2 kg/m, 6070 mm bar or cut to length.

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Code: 3842990416
Length: 6,070
  • Brand
  • Section mm
  • Slot mm
  • Max length mm
  • Alloy
  • Production method
  • Surface treatment
  • Coefficient of thermal expansion
  • Tensile strength
  • Yield strength
  • Elongation at break
  • Modulus of elasticity E
  • Brinell hardness
  • Straightness tolerance
  • Torsion tolerance
  • Min length mm
  • Cross-section area cm²
  • Moment of inertia Ix / Iy cm⁴
  • Section modulus Wx / Wy cm³
  • Torsion factor It cm⁴
  • Torsion factor Wt cm³
  • Length
  • Weight
  • Material

Cut dimensions

mm
180 × 90 mm Real profile section
0Full bar 6070 mm
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Full bar Full sheet of the sheet From {min} to {max} mm · full bar {max} mm Up to {maxl} × {maxw} mm · minimum {min} mm Length between {min} and {max} mm. Width between {min} and {max} mm.

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Specifications

Brand Bosch Rexroth
Section mm 90x180
Slot mm 10
Cross-section area cm² 63.6
Moment of inertia Ix / Iy cm⁴ 2138.3 / 544.3
Section modulus Wx / Wy cm³ 237.6 / 121.0
Max length mm 6070
Alloy EN AW-6063 (Al MgSi)
Production method Extrusion
Surface treatment Anodising E6/EV1, 12 µm, 300 HV
Coefficient of thermal expansion 23.4 × 10⁻⁶ 1/K (+20…100 °C)
Tensile strength 245 N/mm²
Yield strength 195 N/mm²
Elongation at break 10%
Modulus of elasticity E 70000 N/mm²
Brinell hardness 75 HB
Straightness tolerance max 0.75 mm/m
Torsion tolerance max 0.70 mm/m
Torsion factor It cm⁴ 429.00
Torsion factor Wt cm³ 64.00
Min length mm 50
Length 6070
Weight 17.2 kg/m
Material Anodized aluminium

Upright, with the 180 mm side vertical: that way it works with Ix = 2138.3 cm⁴. Laid flat it drops to Iy = 544.3 cm⁴, which is still more than the 90x90: even flat it remains a very rigid base.

The quick connector cannot be used in the 90x180. For high static and dynamic forces there is the load connector 180x180 Dynamic Load; for other joints we suggest connectors and brackets based on the loads.

Yes, it is the supporting profile for LF20S and LF20C roller guides, with or without drive. For a complete guide send us the configuration: we will check the components together.

The 90x180L is the lightweight version: 11.6 kg/m and Ix = 1380.0 cm⁴, versus 17.2 kg/m and 2138.3 cm⁴ for the 90x180. Choose the 90x180 for the highest loads and longest spans, the 90x180L when you want to keep weight down.

Two 90x90 cover caps side by side, in signal grey PP or black ESD. They are also available with a hole, if a screw passes through the end.

When the cross member is long or heavily loaded: the 90x180 mounted upright has Ix = 2138.3 cm⁴, more than seven times the 90x90, at 17.2 kg/m. The 90x90 remains the choice for posts loaded from several sides.

The static slot limit, with the largest thread, is 18000 N with the T-nut and 24000 N with the sliding block, as on the 90x90. Apply your own safety factors and for critical joints send us the drawing and loads.

It is the width of the profile slot and determines which accessories you use. Slot C6 (6 mm) is for 20 series profiles, C8 (8 mm) for the 30 series, C10 (10 mm) for profiles from the 40 series upwards. Nuts, screws, brackets and cover caps are chosen by slot: each accessory's product page shows the right one.

Yes. You can order the full bar or the piece cut to the length you need: we do the cutting ourselves, in our workshop. Each profile's product page shows the maximum bar length and the minimum cut length.

Look at the moments of inertia Ix and Iy: the higher they are, the less the profile deflects under load. For the same section, “L” profiles are lightened and deflect a little more. For long spans or high loads move to a larger section or a tall profile (e.g. 45x90 instead of 45x45). If you send us drawing and loads, we will check the choice.

The T-nut is inserted from the front into the slot, even in an assembled structure, and positions itself when you tighten the screw: it is the standard choice for fixing accessories. The sliding block withstands higher forces, but normally has to be inserted from the profile end before closing the frame; spring versions stay where you put them.

The simplest way is the bracket, which joins two profiles at 90° with screws and nuts in the slot, without machining. For end, T, 45° or three-way connections there are dedicated connectors, some of which require profile machining as stated on their product page.

Yes, for several accessories (for example cover caps, hinges and nuts) there are conductive ESD versions, indicated in the name or variant. Tell us which EPA area you work in and we will confirm the components to use.

On each product page you will find the MGE catalogue pages to download as PDF, with dimensioned drawings and technical data; the Specifications tab shows the data for the variant you have chosen.

Yes. Send us the parts list or a sketch with dimensions: we give you codes, quantities and cut lengths and prepare the kit with profiles already cut and the accessories.

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