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Robust Profile Sensor
weCat3D MLZL 

The MLZL 2D/3D profile sensors from the weCat3D series are designed for fully automated weld seam tracking, where the highest demands are placed on quality and precision. The sensor reliably detects the position of the joint to be welded via laser triangulation.

Technical Data for Explorers

The MLZL design, specially designed for use in welding processes, is particularly compact in order to prevent the occurrence of interference contours on the welding torch. Even on difficult surfaces, the profile sensor optimized for weld seam tracking offers good profile quality without noise. The integrated cooling and air flushing enables use in hot and dirty industrial areas, while the adjustable cover protects the welding optics from the brightness and heat of the arc.

Discover more technical features of the MLZL tracker sensor in our interactive overview.

The Technical Highlights in Detail

weCat3D MLZL at a Glance

The Visual Field

Challenge with Weld Seam Tracking: Joint Types

With optical weld seam tracking, the position of the objects to be welded together must be reliably detected in order to ensure precise application of a high-quality weld seam. A distinction is made between different types of joints.

Butt joints

Weld seam tracking: Butt joints

Lap joints

Weld seam tracking: Lap joints

Parallel joints

Weld seam tracking: Parallel joints

T-joints

Weld seam tracking: T-joints

Double-tee joints

Weld seam tracking: Double-tee joints

Corner joints

Weld seam tracking: Corner joints

Multiple joints

Weld seam tracking: Multiple joints

Angular joints

Weld seam tracking: Angular joints
The MLZL weCat3D profile sensor uses the weld tracking module of the uniVision software, which enables reliable detection of the guide point thanks to a special algorithm for all types of joint and thus guides the welding unit precisely. 
Watch the MLZL tracker sensor in action during robotic welding in the following video. The joint types T-joint, butt joint and lap joint are shown. 

Integration Options in the Welding Process

There are various options for integrating the MLZL 2D/3D profile sensor in weld seam tracking. With its special housing shape, the robust sensor is particularly suitable for use in robotic welding, but can also be used in welding applications with third-party software.
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