Name: Aluminium strut profile 10x40
Brand: Bosch Rexroth
SKU: 3842993077

AL Modular System · C6 profiles

Aluminium strut profile 10x40

The 10x40 is a flat profile in the slot C6 series: 10 mm high and 40 wide. It is rigid when loaded in its plane (Ix = 3.2 cm⁴) and flexible in the other direction (Iy = 0.2 cm⁴). You use it as a band, stop or light support fixed to a 20 series profile frame, with slot C6 nuts and screws. 3000 mm bar or cut to length.

Cross-section 10x40 mmSlot C6Ix 3.2 cm⁴0.6 kg/m3000 mm bar or cut to length

Why choose it

Minimum footprint

Only 10 mm high: fits where a 20x40 would be too thick.

Stiff in its plane

Ix = 3.2 cm⁴ for loads acting along the 40 mm.

C6 accessories

20 series nuts and sliding blocks; dedicated 10x40 cover cap.

Choose it if…

You need a thin band or stop.
You have little space in height.
The structure is in the 20 series with slot C6.

Choose another solution if…

You need a cross member: Aluminium strut profile 20x40 →
You need a square profile: Aluminium strut profile 20x20 →

Not sure which profile to choose? Open the guide with the profile table →

Technical data

Property	Value
Code	3842993077 (full bar) · 3842993077L (cut to length)
Section	10x40 mm
Slot	C6 (6 mm)
Cross-sectional area	2.1 cm²
Weight	0.6 kg/m
Moment of inertia	Ix = 3.2 cm⁴ · Iy = 0.2 cm⁴
Section modulus	Wx = 1.6 cm³ · Wy = 0.4 cm³
Slot load capacity	1700 N with T-nut · 3000 N with sliding block (static limit, largest thread)
Bar length	3000 mm
Minimum cut length	50 mm
Alloy and finish	EN AW-6063 (AlMgSi) extruded, anodised E6/EV1, 12 µm
Cover cap	Cover cap 10x40, signal grey or black ESD

The x and y axes are those of the section drawing in the attached PDF.

Downloads

MGE catalogue pages 15 Download PDF

Related products

Cover cap for profileCover cap 10x40

T-nutT-nut C6

Standard sliding blockSliding block C6

Aluminium strut profile 20x40Profile 20x40, same width

Any other questions?Read the 10 FAQs →

Need help with your profile parts list?

Send us a sketch or the parts list: we will give you codes, accessories and cut lengths.

Request a quote Call +39 0434 572757

Specifications

Brand	Bosch Rexroth
Section mm	10x40
Slot mm	6
Cross-section area cm²	2.1
Moment of inertia Ix / Iy cm⁴	3.2 / 0.2
Section modulus Wx / Wy cm³	1.6 / 0.4
Max length mm	3000
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
Min length mm	50
Length	3000
Weight	0.6 kg/m
Material	Anodized aluminium

Only for light loads and mounted on edge: in its plane it has Ix = 3.2 cm⁴, flat barely 0.2 cm⁴. For a 20 series cross member choose the 20x40, which has the same width.

The dedicated 10x40 cover cap in PP, signal grey or black ESD.

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.