The spread of modern, high-speed, high-performance die cutting machines and the standards of precision required by automatic packing machines also place higher demands on the dies and grooving equipment used than was the case a few years ago. The Linhardt company has surmounted this challenge with a new development and in addition to the familiar die with wooden base plate and the Linbord cutting and embossing dies now offers its newly developed Glasbord die.
Dies of this construction consist of an inside layer of extremely high compressive strength and two covering plates made of glass fabric. According to the manufacturer, Glasbord dies offer high dimensional accuracy and dimensional stability which is essential for a good die cutting result especially in interaction with counterplates. The influence of temperature and humidity variations on the dimensional stability of the die has been reduced to an effectively negligible level.
As the manufacture also explains, the inside position of the die offers an outstanding clamping position for the stamping and grooving lines and allows a large number of blade changes. The substantial reduction in weight compared with conventional dies is rated as a plus point by the pilot customer since it considerably simplifies the handling of the dies.
Light weight for complex functions
Glasbord cutting dies can also be equipped with the embossing holders familiar from the Linbord die. The advantages of the Prägefix® system in conjunction with the optical Linpos setting up system can thus also be utilized to the full when using the new die.
As the first supplier of milled steel counterplates Linhardt has considerable experience in the application of this technology. The Glasbord die is typically used together with a medium-hard (LSR35) or hard counterplate (LSR50). After completion of the test phase at selected pilot customers in the cigarette and food packaging sector Linhardt has created the production capacities to enable it to cover the market.
Linhardt fabricates the top and bottom cover layer of the base plate of the new Glasbord die from glass fabric. Pilot trials at manufacturers of cigarette and food packaging certify to the wide range of performance of the new die.
PAPIER+FOLIEN 01, 27.01.2006, Page 018