TECHNOLOGY

The core competence of PV Crystalox Solar Silicon GmbH is slicing of hard and brittle materials such as (quartz) glasses, glass ceramics, crystals, (non-)oxide ceramics, alloys, composite materials and natural stones.

The so called “wire sawing “ process is used to slice materials and it is actually a lapping process while using free abrasives. During the process, a very thin steel wire is drawn off at high speed over grooved wire guiding rollers (blue). This causes a fast moving wire web of up to 3500 horizontally parallel wire loops. This wire web is continuously wetted with a sawing fluid, called slurry. This slurry consists of a carrier liquid and abrasive particles. The material to be sawn is slowly driven vertically through the wire web over several hours. The wire wetted by the slurry transports the particles into the sawing gap, where they have an abrasive effect. Thus, up to thousands of slices of your material can be cut in one cutting operation.

The wire sawing process reaches higher accuracies and material usage and less sawing damage and edge defects compared to conventional sawing technologies and shows therefore very high cost- and material-efficiency.

Wiresawing of brittle material such as silicon, glass, crystals, ceramics... with minimal material losses and high output

MACHINERY PARK

Thanks to our 20 years of business activity, we have a machine park that allows us to cut a wide variety of formats and geometries of your materials, furthermore to separate the resulting slices, to clean, to check and to pack them in a break-proof way.

Multi-Wire Saws

Our multi-wire saws of different generations allow material loading with a wide range of formats to perform high-precision cuts with slices as thin as 0.14 mm with very homogeneous surfaces.

The possible format spectrum of your materials ranges from cuboids to cylinders and hollow cylinders, round rods and bars, ingots, boules, tubes, billets, blanks and crystals.

Furthermore, we are able to efficiently separate large hollow cylinders and tubes of various diameters into slices or rings with thicknesses according to your requirements.

Multi-wire squarer

Our multi-wire squarer has a rectangular crossed wire web and enables the cutting of very large rectangular formats with edge lengths of up to 750 mm and a height up to 500 mm.

Band saw

With our band saw we can single cut your materials with a length of up to 800 mm with high sawing speeds.

All products are characterised in elaborate analysis and measurement procedures according to your requirements and our capabilities.

Our extensive and profound technological experience for the production of thin slices is your advantage.