Cubic connector for profiles 20-50

AL Modular System · Connection elements

Cubic connector, without screws and cover caps - connectors for strut profiles

The cubic connector closes the corners of frames, enclosures and cube structures: the profiles butt against the cube and are fixed with self-tapping screws, without machining the profiles. The 2-way version joins two profiles at an angle, the 3-way version forms a corner with three profiles. It is the original Bosch Rexroth component: this is the body-only version; if you want everything ready, take the set with screws and cover caps.

2-way and 3-wayFrom 20x20 to 50x50Slot C6 · C8 · C10Torsion-resistantBody only

Cubic connector, without screws and cover caps - connectors for strut profiles

fino a 240 Nmmoment Mmax, 45x45 3-way

5sections: 20, 30, 40, 45, 50

2 o 3profiles per corner

10codes

Why choose it

Clean corners

A single piece for the frame corner, with no brackets on the sides.

Torsion-resistant

The corner does not rotate: the frame stays square.

No machining

The profiles are screwed to the cube with self-tapping screws, without tapping.

Conductive

The cube creates a conductive connection between the profiles, useful in ESD areas.

Choose it if…

You need to close the corners of a frame with profiles of the same section
You want a clean, torsion-resistant corner without brackets
You already have the screws or want to choose the cover caps separately, for example black ESD

Choose another solution if…

You want the connector complete with screws and cover caps: Cubic connector, with screws and cover caps →
You need a 90° connection at mid-profile: T-connector →
The joint must remain adjustable along the slot: Bracket →

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

Complete the connector

Cubic connector with screws and cover caps

The ready set: body, screws and grey cover caps.

Cover cap for cubic connector

Closes the cube openings, also in black ESD.

T-connector

For 90° connections along the frame.

View product →

Cube, screws and cover caps are chosen for the same section as the profiles.

The LeanProducts service

From parts list to ready-to-assemble kit, with a single point of contact:

Cutting to length

We cut the profiles in our workshop to the lengths in your parts list.

Check of codes and quantities

We start from the parts list or a sketch: we check connectors, screws, nuts and cover caps for every slot and every joint.

Ready-to-assemble kits

You receive cut profiles and accessories grouped by structure, with the component list.

Spare parts

When you modify or extend the structure we supply the same original components.

Send us the parts list or a photo of the structure: we reply with codes and quantities.

Data and compatibility

Property	Value
Slot	C6 (20x20) · C8 (30x30) · C10 (40x40, 45x45, 50x50)
For profiles	Strut profiles of the same section: 20x20, 30x30, 40x40, 45x45, 50x50
Ways	2-way (corner with two profiles) · 3-way (corner with three profiles)
Material	Die-cast aluminium
Moment Mmax (2-way / 3-way)	20x20: 18 / 23 Nm · 30x30: 80 / 85 Nm · 40x40: 60 / 70 Nm · 45x45: 200 / 240 Nm (45x45L: 150 / 170 Nm) · 50x50: 120 / 140 Nm
Screws to match	One per profile: S6x16 (C6) · S8x25 (C8) · S12x30 (C10)
Tightening torque	S6: 10 Nm · S8: 25 Nm · S12: 35 Nm
Profile machining	Not required
Versions	10 codes: 2-way and 3-way for each section

Choose the variant above: data and code update in the Specifications tab. Screws and cover caps are not included.

Images and applications

Related products

T-connectorT-connector

Aluminium strut profile 20x20Profile 20x20, slot C6

Aluminium strut profile 30x30Profile 30x30, slot C8

Aluminium strut profile 45x45Profile 45x45, slot C10

Any other questions?Read the 18 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

ESD	yes
Dimensions mm	20x20
Moment Mmax Nm	23
Tightening torque Nm	10
Production method	Die casting
Technical notes	Solo connettore, senza viti e cappellotti
Section	20x20
Material	Die-cast aluminium
Slot	C6
Ways	3-way
Brand	Bosch Rexroth

Tags
Tags	Bosch 5S1

One for each profile: two for the 2-way cubic connector, three for the 3-way one.

This is the cube body only. The set also contains one screw per profile and the grey cover caps that close the openings. Take the body if you already have the screws or need different cover caps, for example black ESD.

It depends on the section: D12 for 20/2 and 20/3 connectors, D18 for 30/2 and 30/3, D24 for 40 and 45 connectors, D30 for 50 connectors.

With 2-way you join two profiles at a right angle, for example where the cross member meets the upright at the top. With 3-way you close the corner of a cube frame, where three profiles meet.

One screw per profile: S6x16 for the 20x20 section, S8x25 for the 30x30, S12x30 for 40x40, 45x45 and 50x50. Tighten them to 10, 25 and 35 Nm respectively.

The cube is the same. This code is the complete set ready to fit; the one without screws and cover caps is the connector only, useful as a spare or if you already have screws and cover caps in stock.

It depends on the connected profile: with the solid 45x45 the 3-way cube carries 240 Nm, with the lightweight 45x45L 170 Nm. For the 2-way the values are 200 and 150 Nm.

The cube creates a conductive connection between the profiles. The grey cover caps are not conductive: for a fully ESD corner use the black ESD cover caps.

The T-connector joins a profile to the side of another, even at mid-length. The cubic connector closes corners, where profiles end: two profiles at an angle or three at a corner.

No, the cubic connector joins profiles of the same section: choose the cube that matches your profiles.

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.