The world's first four-disc laser generates a nominal 4kW of processing power to the workpiece but the maximum laser power attainable is roughly 40% higher.

The world's first four-disc laser has been introduced by Trumpf as a development of the HLD301 and 1001.5 systems. The four discs generate a nominal 4kW of processing power to the workpiece but the maximum laser power attainable is roughly 40% higher. In addition to this exceptional output potential, the disc laser is characterised by a sharply improved beam as there is almost no thermal lensing associated with this process.

The superior beam quality of 7mm.rad brings many advantages, the first of which is the reduction of focal diameter.

It is now possible for a laser beam to pass through a length of glass fibre cable with a core diameter of just 200mm.

Benefits include higher cutting and welding speeds, shorter cycle times and lower heat input into the workpiece.

In the processing of thick sheets, the improved beam quality of the disc laser is mainly used to achieve greater working distance and depth of field, or to increase the processing field size of the scanner optics.

The excellent beam quality also allows machining optics to be more compact.

This is useful whenever weld or cut locations are hard to access or when focusing optics are integrated into the processing stations.

This laser also opens up a whole new field of application in remote welding with solid-state lasers.

The active laser medium is a disc only a few tenths of a millimetre thick, excited from the front by diode lasers.

The back of the disc has contact with a cooling surface and is also equipped with a highly reflective layer, mirroring the laser resonator.

In common with its forerunners, the new disc laser is of modular design.

Each laser cavity has its own diode power supply.

Naturally the laser units confirm to CE regulations and fulfil the latest EMC requirements.

They also feature all the standard Trumpf continuous wave solid-state laser interfaces.

The latest generation of Trumpf laser controls completes this system.

These control the components inside the laser unit as well as external beam-guidance components and the focusing optics.

The laser power can be modulated as required and up to 79 different programs stored, together with laser parameters and beam guidance variants.

The laser beam is guided to the workpiece along flexible laser light cables.

Using beam splitters or beam switches, various different processing stations can be operated either simultaneously or successively.

The energy of one or more solid state lasers can therefore be effectively used.

Trumpf 's new four-disc laser naturally has integrated Telepresence capability.

Via a modem, the operating and control data as well as up to 600 other values can be accessed at any time and transmitted to any of Trumpf's service outlets.