Linear Extension Connectors
S45C zinc-plated linear extension connectors for end-to-end profile joining. Variants are listed for EU 20โ45 and GB 30โ40 profile series.

Material
S45C Carbon Steel
Part Code
XADL21
Series Range
206 / G306 / 308 / G408 / 408 / 4510
Connection Type
Inline End-to-End
Dimensions & Series Compatibility
All dimensions in millimeters (mm).

Part Number System
Code
Product family identifier (XADL21)
Series
Profile series (e.g. 206, 308, 408, 4510)
| Code | Series | A (mm) | B (mm) | C (mm) | E (mm) | T (mm) | T1 (mm) | M | W (mm) | Compatible Profile |
|---|---|---|---|---|---|---|---|---|---|---|
| XADL21 | 206 | 9.2 | 100 | 30 | 30 | 4.6 | 1.5 | 5 | 6 | EU 20 Slot 6mm |
| G306 | 10 | 110 | 35 | 20 | 7 | 2 | 5 | 6 | GB 30 Slot 6mm | |
| 308 | 16 | 180 | 50 | 40 | 6 | 1.5 | 6 | 8 | EU 30 Slot 8mm | |
| G408 | 13.5 | 140 | 45 | 20 | 9.5 | 3 | 6 | 8 | EU 40 Slot 8mm | |
| 408 | 19.5 | 180 | 50 | 40 | 9.5 | 3.2 | 6 | 8 | GB 40 Slot 8mm | |
| 4510 | 18 | 140 | 40 | 40 | 9 | 2.8 | 8 | 10 | EU 45 Slot 10mm / EU 50 Slot 10mm |
Key Features
Why XADL21 is the standard choice for inline profile extension.
Invisible Inline Joint
Connector sits entirely inside the profile bore - no external hardware visible after assembly.
Wide Series Coverage
Single product code covers EU 20, GB 30, EU 30, EU 40, GB 40, EU 45, and EU 50 series profiles.
Rigid Connection
The listed four-point fastening arrangement secures the connector inside the compatible profile; joint suitability depends on the complete assembly.
Tool-Only Installation
Hex key tightening through the T-slot - no drilling, welding, or adhesives required.
Listed Alignment Geometry
Select the connector by profile series and the dimensions shown for the intended end-to-end joint.
OEM & Custom Lengths
Custom length requests require dimensions, quantity, and source confirmation.
Typical Applications
Common use cases for inline profile extension in industrial assemblies.
Frame Length Extension
Extend machine frames or structural profiles beyond standard stock lengths.
Conveyor Systems
Create long conveyor frames from standard-length profiles with invisible joints.
Workstation Rails
Extend workbench and workstation rails to custom lengths.
Modular Structures
Build modular structures that can be reconfigured by adding or removing profile sections.
Production Line Frames
Assemble production line frames with precise length control.
Lab & Clean Room Rails
Extend rail systems in laboratory and clean room environments.
Technical FAQ
Related Products
More from Specialized & Internal Connectors

XADU48
Pivot Joints
Die-cast zinc alloy pivot joints for rotatable profile-to-profile connections. Available in standard (no handle) and handle variants (S). The pivot mechanism allows the joint angle to be adjusted and locked at any position. Compatible with EU 20 through EU 45 series profiles.

XADJ31 ยท / โฆ
Anchor Fastener Cams
Anchor fastener cams for compatible aluminum-profile connections. XADJ42 is zinc alloy with nickel plating, while XADJ31 is SUS304 with vibratory polishing. Select the listed variant by profile series and dimensions.

XADW48
Cube Connectors
ADC12 cube connectors for 2-way (D variant) and 3-way (T variant) profile junctions. The cube body fits at the profile junction and is secured with compatible fasteners. Select the listed variant by profile series and dimensions.

XADK11
End Plate Connectors
ADC12 end plate connectors for closing and connecting compatible aluminum-profile end faces. Available variants cover the listed EU 30 and EU 40 profile series; confirm the profile and dimensions before ordering.
Ready to Get Started?
Send the product code, quantity, profile details, destination, and required documents for source review and quotation
