L-matrix LDC | Laser DeCoating

The L-matrix LDC removes transparent but conductive layers (e.g. low-E layers) from the glass at speeds of up to 360 mm²/s to create conductor structures of any width and shape for heating.

As an additional option, you receive powerful software for modelling the temperature curve for any glass size and shape - to ensure uniform heating, for example. Conversely, it is also possible to calculate different temperature values in different areas of the glass and thus partially intensify the heating power, e.g. for the parking area of car windscreen wipers.

Laser

Each laser module and the machine are guaranteed for 1 year with no limit on operating hours for the entire machine. Lascom lasers offer a coating removal speed of up to 8 m/s in a straight line and up to 360 mm²/s in the area. The decoating performance of the L-matrix LDC system is up to 15 x higher than the traditional acid etching process.

The laser enables a combination of high speed and precise separation joints - so-called "cutoffs". The width of the generated cutoffs can be varied from 35 µm to several millimetres.

A 0.5 mm wide cutoff provides up to 1 kV of isolation in dry air without breakdown. In a finished construction (e.g. laminated glass), the 0.05 mm wide cutoff can withstand up to 600 volts.

This is achieved by the complete removal of the coating material by laser radiation and without damaging the glass.

The L-matrix LDC offers high productivity, flexibility and precision. In addition, labour requirements can be significantly reduced compared to conventional processes: Only one operator is required to run an entire line for the production of electrically heated glass.

A major advantage of the laser is the environmental compatibility and safety of the process - especially compared to the traditional acid etching method, which is harmful to the environment and personnel.

Machine details

At the heart of the L-matrix LDC is a laser that creates separation gaps in conductive layers present on the glass surface. The typical expected lifetime of the laser is up to 50,000 operating hours. The speed of the layer removal is up to 360 mm²/s.

An extraction system that surrounds the laser processing area ensures that no dust or aerosols produced during laser processing are released into the ambient air.

3 powerful servo motors for X, Y and Z axis movement. Repeat accuracy: +/-0.15 mm.

The soft table surface ensures that the glass is not damaged. The support table can be operated in pressure and vacuum mode for glass transport as well as for glass fixation.

Retractable stops for the glass edges precisely align the glass.

Machining glass surfaces

L-Heatware: Our software solution for heating simulation

In order to perfectly control the operation of the L-matrix LDC | Laser DeCoating tables, our engineers have developed software that makes it possible to calculate the heat output (in watts per unit area) even for glasses with complex shapes and to select an optimal arrangement of cutoffs and busbars. This eliminates the need to create prototypes, which in turn significantly reduces the costs for small series and individual orders.

Possible machine configurations

Size

Model

L×W, mm

Height, mm

L×W of glass, mm

Thickness of glass, mm

25/303800x4285910-9502510x3210 max
300x300 min
3-12
40/305480x4285910-9504000x3210 max
300x300 max
3-12
60/307260x4285910-9506000x3210 max
300x000 min
3-12

Laser performance

Basic performance130 mm²/s
After installation of a more powerful laser (optional)360 mm²/s
Scanner processing field 180 ×180 mm

* Values are given without regarding time of positioning

Serial production

Glass markingext. option


Operator’s safety

Light barrierext. option
Safety fencingext. option

Other parameters

Operating voltage3/N/РЕ—50Нz 380V
Power consumption19,15 kW (ULSP-25/30)
22,15 kW (ULSP-40/30)
25,15 kW (ULSP-60/30)
Operating pressure6±0,5 bar
Air consumption80 l/min
Noise levelmax 80 dB(A)