3-way connector 3030 for aluminium profiles – 30 series, 3 M8 screws

The 3-way connector for 3030 profile, also referred to as a 3D connector for aluminium profiles, is a practical component designed to connect three 30×30 mm profiles at one corner of a structure. It allows the profiles to be positioned in three perpendicular directions and creates a three-dimensional 90° corner connection.

The connector is designed for structures made from 3030 aluminium profiles belonging to the 30 series with an 8 mm wide T-slot. It is suitable for building frames, support structures, machine enclosures, workstations, shelving, automation structures and other modular technical projects.

The kit includes three countersunk screws ISO 10642-M8x20 and a finishing cover cap. Correct installation requires an M8 thread to be made at the end of each of the three profiles connected to the connector.

Connecting three 30×30 mm profiles at one corner

The 3-way connector makes it possible to connect three 3030 aluminium profiles at one point of the structure. Each profile is positioned perpendicular to the others, allowing a three-dimensional corner to be created for use in rectangular spatial frames, enclosures, support structures and load-bearing structures.

This connection method is particularly practical in structures where three edges meet at one corner. Instead of using several separate corner brackets, one component matched to the arrangement of three profiles can be used.

The connection can be used both in new projects and when extending an existing structure made from 30-series aluminium profiles. Before installation, the profile lengths must be planned and the ends that require threading must be identified.

3D connector for 30-series aluminium profiles

The connector is designed for profiles with a cross-section of 30×30 mm belonging to the 30-series system with an 8 mm wide T-slot.

The connector can be used with the following profiles, among others:

• 3030 structural aluminium profile in silver-grey,
• 3030 aluminium profile black.

Before purchasing, check the cross-section, series and core-hole design of the profile used. The product is intended for 3030 profiles and is not a universal connector for all profiles with an 8 mm wide slot.

M8 threading required before installation

The connector is secured to the core holes located at the ends of the profiles. To insert the included screws, each of the three profiles must be tapped M8 on the side that interfaces with the connector.

When preparing the profiles independently, the threads must be made axially and to the correct depth. Before installation, remove chips from the holes and check that the screws can be started without excessive resistance.

When ordering 3030 profiles from the ALUX Profile website, the M8 threading option can be selected. For each of the three profiles, threading must be ordered at the end that will be connected to the 3-way connector.

The threading should be completed before assembly of the structure begins. Once the profiles have been installed, access to their core holes may be limited.

Kit contents

• 1× 3-way connector for 3030 profile,
• 3× ISO 10642-M8x20,
• 1× finishing cover cap.

Three correctly cut 30×30 mm profiles with M8 threads prepared at the appropriate ends are required to make the connection.

Cover cap for an aesthetic connection finish

The included cover cap is used to finish the visible part of the connector after the screws have been installed and tightened. It gives the corner a neater appearance and covers the components located inside the connector.

The cover cap should only be installed after checking the position of all three profiles and finally tightening the connection. This maintains unrestricted access to the mounting screws if an adjustment is required.

Installing the 3-way connector 3030

1. Preparing the profiles: prepare three 3030 aluminium profiles cut to the required length.

2. Checking the ends: make sure that the ends of the profiles are cut square and cleaned of larger burrs.

3. Making the threads: tap an M8 thread in the core hole at the end of each profile intended for the connection.

4. Cleaning the threads: remove chips and machining residues and check that the screws can be started freely.

5. Positioning the connector: place the connector at the point where the three profiles are to meet.

6. Positioning the profiles: place the ends of the profiles against the corresponding surfaces of the connector while maintaining their perpendicular alignment.

7. Inserting the screws: place the three ISO 10642-M8x20 screws in the connector holes and begin screwing them into the prepared M8 threads.

8. Initial tightening: partially tighten the screws, leaving the possibility of correcting the profile alignment.

9. Checking the corner: check that the profiles are perpendicular to one another and verify the position of the complete structure.

10. Final tightening: tighten all three screws gradually and evenly.

11. Installing the cover cap: fit the finishing cover cap after adjustment and inspection have been completed.

The screws must be inserted axially and tightened with care. Excessive force may damage the thread made in the profile core hole or make subsequent disassembly of the connection more difficult.

Applications of the 3D connector for 3030 profiles

The 3-way connector can be used in various structures made from 30-series aluminium profiles, such as:

• three-dimensional frames and aluminium support structures,
• machine and equipment enclosures and guards,
• workstations and assembly stations,
• workshop and production tables,
• automation and robotics structures,
• laboratory and test stations,
• shelving and storage structures,
• equipment frames and support structures,
• prototypes and technical DIY projects,
• custom structures made from 3030 aluminium profiles.

Practical connection of three 3030 aluminium profiles

The 3-way connector for 3030 profile is a functional solution for creating three-dimensional corners in structures made from 30-series aluminium profiles. It connects three 30×30 mm profiles at one point using the three included ISO 10642-M8x20 screws.

The complete kit with a cover cap, compatibility with profiles featuring an 8 mm T-slot and the option to order profiles with M8 threading make it easier to prepare aesthetically finished frames, enclosures, support structures, workstations, shelving and other modular technical structures.