Laserline LDL lasers provide direct, efficient thermal processing

Unlike conventional laser systems with a pump medium and external beam guidance, Laserline GmbH’s (Mülheim-Kärlich, Germany) LDL direct-emission laser systems require neither beam conversion nor optical fibers. This simplified architecture, reduces energy losses and cuts system complexity for industrial heat treatment applications, with a wall-plug efficiency of more than 56%

A key advantage of the Laserline LDL series is its modular design. Each laser system consists of a customer-specific number of emission zones — typically between one and eight. The combination of the laser modules enables the generation of beam shapes ranging from line spots to large rectangular laser spots exceeding 1 m in size. Working distances between 300 and 1,500 mm allow both fine structures and large-scale surfaces to be processed without moving parts, ensuring consistent results. According to the company, the laser power can be precisely regulated within milliseconds. 

For large-area applications, such as heating of injection molds or composite component heating, LDL Multi provide homogeneous irradiation over wide surfaces. The smaller laser module, LDL Single, enables parallel treatment of small unidirectional (UD) tapes, or of cylindrical components, by using multiple laser heads.

DL lasers are easily integrated into existing production lines, supporting retrofit solutions and hybrid system concepts. Their compact footprint and absence of delicate fiber connections reduce investment and maintenance costs. Application fields include drying and curing of coatings; annealing semiconductor wafers; sintering metallic and ceramic layers; and conditioning polymer surfaces. In battery production, for instance, LDL systems can lower operating costs for heating and drying by up to 28% and reduce floor space by nearly half. 

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This post is courtesy of the CompositesWorld and AZL Aachen GmbH media partnership.