Von Roll USA, Inc.

Von Roll has the right solution to improve the quality and cost-effectiveness of the high-voltage insulation you need for your applications. With Samicapor®, Von Roll has designed a range of outstanding VPI mica tapes that fulfill the requirements of main wall and end-winding insulation, namely High dielectric strength Corona discharge resistance Fast and easy impregnation Resin retention without draining Smooth application without creasing Both manual and fast-running machine application Full compatibility with predefined resin systems Applicable for flat coil technology

Assuring optimum quality of main wall insulation requires careful selection of micaceous tape and detailed attention to the way the tape is applied and processed. We offer a complete range of resin-rich (RR) main wall insulation tapes and systems under the name Samicatherm® for both conventional and hydrostatic pressing and Filosam® and Samicaflex® for the overhang areas. The advantages of these tapes are that they: » Have high dielectric strength » Resist corona discharge » Can be applied smoothly without creasing » Can be applied by fast-running machines or manually » Have short cutting times

Samicafilm® products are based on Von Roll Samica® mica paper impregnated, reinforced with one or two polyester or polyimide film backings and with or without adhesive coating (hot-melt). Samicafilm® tape covering on bare or enameled wires is the preferred conductor insulation for stator and rotor coils due to its substantial advantages: Better corona resistance Reduced insulation thickness Softer copper, enabling easier workability Greater manufacturing flexibility

Mica mastic is used as a filler in conductor strands of Roebel bars at the points where conductors cross over. The material contains mainly mica powder and epoxy resin.

By developing and producing state-of-the-art Cablosam® tapes for the manufacture of fire-resistant cables, Von Roll is making an important contribution to disaster prevention. Our Cablosam® mica products have a worldwide reputation and have been specifically developed for use with our customer’s taping technologies, while complying with the most stringent international standards. Cablosam® tapes are also free from halogens and do not create hazardous fumes. Von Roll offers tape widths from 4mm upwards delivered as pads or cross-wound spools. The tape on a cross-wound spool may be up to 20 km in lenght, depending on the width and dimensions of the spool. Von Roll also offers wires fully taped with Cablosam® tapes according to our customer wishes.

Due to its proximity to the primary aluminum industry for over 30 years, Von Roll has developed the right product range to meet all standards and custom technical protection requirements. Altherm® 660 is a composite material made especially for gaskets. Von Roll manufacture collector rings for commutators in electrical machines e.g. traction motors.