Aluminium strut profile 90x90L slot 10

AL Modular System · C10 profiles

Aluminium strut profile 90x90L

The 90x90L is the large square profile of the 45 series: two 10 mm slots per side and central bores that can be threaded M12. Although it is an “L” profile with optimised section, it has the heavy-geometry slot: Ix = Iy = 211.1 cm⁴ at 6.5 kg/m. It is the post for support frames and gantries loaded from several sides and the base profile of LF12S roller guides.

Section 90 × 90 mm8 slots of 10 mm6.5 kg/mIx = Iy 211.1 cm⁴Heavy slot

Why choose it

Stiff in every direction

Ix = Iy 211.1 cm⁴: a post with no weak direction.

Heavy slot

High-strength connections even though the profile is lightened.

Base for LF12S guides

Carries the guide profile, the rods and the cover of the LF12S roller guide.

Technical data

Property	Value
Code	3842992415
Section	90 × 90 mm
Slot	10 mm (C10)
Cross-sectional area	A = 24.1 cm²
Weight	6.5 kg/m
Moment of inertia	Ix 211.1 cm⁴ · Iy 211.1 cm⁴
Section modulus	Wx 46.9 cm³ · Wy 46.9 cm³
Torsion	It 82.10 cm⁴ · Wt 20.10 cm³
Bar length	6070 mm (usable length) or cut to length
Minimum cut length	50 mm
Alloy and finish	EN AW-6063 (AlMgSi), extruded, anodised E6/EV1 12 µm (300 HV)
Mechanical properties	Rm 245 N/mm² · Rp0.2 195 N/mm² · E 70 000 N/mm² · 75 HB
Tolerances	Straightness max 0.75 mm/m · torsion max 0.70 mm/m
Cover cap	Cover cap for profile 90x90 L in PP, grey or black ESD
Series	45 series (45 mm modular dimension)
Slot geometry	Heavy, for high-strength connections
Standard machining	M12 thread in the central bores, D17 holes, LF machining
Packaging	Single bar or pack of 6 bars

The bar has the stated usable length: the physical piece is about 100 mm longer, because the anodising contact points remain at the ends.

Any other questions?Read the 15 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	90x90
Slot mm	10
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
Min length mm	50
Cross-section area cm²	24.1
Torsion factor It cm⁴	82.10
Torsion factor Wt cm³	20.10
Section modulus Wx / Wy cm³	46.9 / 46.9
Moment of inertia Ix / Iy cm⁴	211.1 / 211.1
Open slots	all slots open
Length	6070
Weight	6.5 kg/m
Material	Anodized aluminium

The cover cap for profile 90x90 L, grey or black ESD: it differs from the one for the solid 90x90. For the 90x180L you need two side by side.

Yes, it is the base profile of the LF12S roller guide; for the driven version it is used with LF machining. The parts list is in the attached catalogue pages.

No: the 90x90 plate is only suitable for the light 90x90L and 90x180L profiles.

No, the 90x90 version is only for the light 90x90L profile.

In the LF12S guide the guide profile is fixed with DIN 7984 M8x30 screws and M8 T-nuts for 10 mm slot; the number of screws depends on the length.

The 90x90 has a cross-section of 38.4 cm², weighs 10.4 kg/m and has Ix = Iy = 299.8 cm⁴. The 90x90L is the lightweight version: 6.5 kg/m and 211.1 cm⁴. Choose the 90x90 for heavily loaded bases and gantries, the 90x90L when the weight of the structure also matters.

The screw alone on profiles with slot C10 and an M12-threaded central hole. The plate version on the 40x80, 45x90, 80x80 and 90x90 sections.

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.