90° Corner Connector Ø28 mm for Aluminium Tubes – Connector for the Leanpipe System

The 90° corner connector Ø28 mm is a practical fitting designed for creating right-angle connections in modular structures made from tubes and round aluminium profiles with an external diameter of 28 mm. It allows two sections of a structure to be joined in a corner arrangement, making it easy to change the direction of the frame without welding the components.

The connector is intended for the Leanpipe Ø28 mm tube system. It can be used with both a silver 28 mm round aluminium profile and a black 28 mm round aluminium profile. It enables the construction of lightweight, modular industrial, workshop and warehouse structures that can be modified later.

Each of the two tubes is inserted 23 mm deep into the corresponding socket of the connector. This insertion depth should be taken into account when calculating tube lengths and the final dimensions of the structure. Correct insertion of both components helps maintain the proper alignment and a 90° angle.

The product is supplied complete with mounting accessories, so there is no need to select the basic components required to secure the connector separately. Once the tubes have been inserted and the structure has been correctly aligned, the connection should be secured using the included mounting components.

Connecting Two Ø28 mm Tubes at a 90° Angle

The 90° corner connector for 28 mm tubes creates a secure corner connection between two sections of round profile. One tube is positioned perpendicular to the other, allowing corners of frames, bases, supports and external outlines of structures to be built.

The connector can be used to join:

• a horizontal frame section to a vertical upright,
• two horizontal tubes forming a corner of the structure,
• base components of a rack or transport trolley,
• tubes forming the outline of a workstation,
• supporting profiles in modular Leanpipe structures.

The connector design helps maintain the relative position of the tubes. Before fully tightening the mounting components, however, check the angle, level and position of all connected sections.

Tube Insertion Depth: 23 mm

The ends of the round aluminium profiles are inserted 23 mm deep into the connector sockets. This parameter is important when designing the structure and cutting the tubes to length.

When determining the profile length, remember that part of each section will be concealed inside the connector. This makes it possible to correctly calculate the final width, length or height of the completed structure.

Before installation, check that:

• the tube ends have been cut square,
• the edges are free from burrs that could make insertion difficult,
• the surfaces of the tube ends are clean,
• both profiles have been inserted to the required depth,
• the connection maintains the correct 90° angle.

Key Features of the 90° Ø28 mm Connector

• Type: corner connector / 90° tube connector
• Connection angle: 90°
• Compatible tube diameter: 28 mm
• Insertion depth per tube: 23 mm
• Number of tubes connected: 2
• Compatible components: aluminium tubes and round profiles Ø28 mm
• Compatible profile versions: silver and black
• System: modular Leanpipe 28 mm tube system
• Mounting accessories: included with the product
• Installation method: insert the tubes and secure the connector with the included components
• Disassembly: the connection can be unscrewed when rebuilding the structure
• Design files: 3D STEP models available in the product attachments
• Application: frames, racks, trolleys, workstations and lightweight tube structures
• Benefits: quick corner connection, installation without welding and the option of later modification

Mounting Accessories Included with the Connector

The 90° Ø28 mm connector is supplied with the accessories required for installation. The product is therefore ready to join two compatible tubes without the need to purchase the basic connecting components separately.

The included accessories are used to secure the tubes after they have been correctly inserted and positioned. Tighten the mounting components gradually and evenly, checking that the tubes remain inserted to the required depth and maintain a right angle.

Tubes, round profiles and other structural components are not included unless ordered separately.

Installing the Corner Connector on 28 mm Aluminium Tubes

The connector can be installed without welding. The connection is made by inserting two correctly prepared tubes into the connector sockets, aligning the structure and securing the assembly with the included mounting accessories.

1. Prepare the tubes: check the external diameter of the profiles, the quality of the cut and the condition of the edges.

2. Insert the first tube: place the end of the Ø28 mm profile 23 mm deep into the first connector socket.

3. Insert the second tube: place the second profile 23 mm deep into the perpendicular socket.

4. Check the position: verify the 90° angle, the level and the final dimensions of the structure.

5. Install the included accessories: secure the connector using the mounting components supplied with the product.

6. Tighten the connection: tighten the components gradually and evenly so that the tube alignment does not change.

7. Check stability: before loading the structure, make sure that both tubes are correctly inserted and that the connector does not move.

If the structure is later extended or rebuilt, the mounting components can be loosened and the connector and tubes can be reused in a different arrangement.

Applications of the 90° Connector in the Leanpipe System

The Ø28 mm corner connector is intended for lightweight and modular tube structures used in production facilities, warehouses, workshops and assembly workstations.

Typical applications include:

• material and warehouse racks,
• flow racks and FIFO structures,
• transport and material trolleys,
• workshop and service trolleys,
• work and assembly stations,
• auxiliary frames and lightweight supporting structures,
• supporting structures for roller conveyors,
• stands for bins and production components,
• modular production-line equipment,
• custom structures made from Ø28 mm aluminium tubes.

The modular connection system allows the structure to be adapted to changes in workstation layout, the number of stored components or the organisation of the production process.

Benefits of the 90° Corner Connector for 28 mm Tubes

• connects two tubes at an exact angle of 90°,
• is designed for tubes and round aluminium profiles with a diameter of 28 mm,
• is compatible with silver and black ALUX tube profiles,
• creates a corner in a modular Leanpipe structure,
• each tube is inserted 23 mm into the connector,
• is supplied with mounting accessories,
• does not require the basic connector hardware to be purchased separately,
• creates a connection without welding,
• allows the structure to be extended or rebuilt,
• can be dismantled and reused later,
• is suitable for industrial, warehouse and workshop structures,
• can be used in racks, trolleys, workstations and tube frames,
• makes it easy to create repeatable corner connections quickly.

Technical Data

• Product type: connector for tube structures
• Connector type: 90° corner connector
• Compatible external diameter: 28 mm
• Tube insertion depth: 23 mm
• Number of tube sockets: 2
• Angle between the tubes: 90°
• Compatibility: silver and black round aluminium profiles Ø28 mm
• Construction system: Leanpipe 28 mm
• Mounting accessories: included

The permissible load of the completed structure depends not only on the connector itself, but also on the tube lengths, number of supports, arrangement of the remaining connectors and the way the complete system is used. Check the stability of all connections before use.

The 90° corner connector Ø28 mm for aluminium tubes is a functional solution for building corners in modular Leanpipe structures. The 23 mm tube insertion depth, compatibility with silver and black round profiles and the included mounting accessories make it possible to quickly create a complete connection that can be modified later.