BIS current transmission

BRUSHES FOR ELECTRICAL MACHINES

In cooperation with German company SCHUNK we manufacture and supply all kind of carbon brushes for any type of electrical machines. In case of mall and urgent orders we produce carbon brushes in Valmiera using technology and materials provided by Schunk and ensure fast deliveries to any palce in Baltic States.

We consult our customers about carbon brush material selection and application.

Schunk contact products enjoy a distinguished reputation among industrial manufacturers around the world. Schunk materials for carbon brushes, carbon, graphite and various metals, combine excellent electrical and heat conductivity with a high level of temperature resistance. Carbon brushes with high percentages of metal provide perfect current transmission, even under the toughest operating conditions, for example in metal refinement processes.

How to order brushes

CARBON BRUSH HOLDERS

SCHUNK has developed several hundred different models of brush holders and rockers for use in generators and motors. Schunk is one of the only suppliers in the world that can deliver nearly all kinds of hoders from stock or manufacture them at short notice. Custom-made and specialized products are no problem for Schunk either.

Operators and manufacturers of electrical machines know that they can count on Schunk today and in the future.

See Brush Holder Types and Plug-in Brush Holders by Schunk.

BRUSH ROCKERS

Complete or partially-mounted brush rockers are utilized by manufacturers of electrical machines to lower assembly expenses and reduce assembly times.

These brush rockers are required in a variety of designs, depending on the electrical machine model involved and the requirements the brush rockers have to meet.

All components are manufactured in accordance with specific assembly templates, regardless of whether a brush rocker is supplied complete with brush holders or only with brush holder supports. This ensures exact fitting of the brush to the collector.

SLIP RING SYSTEMS

New slip ring systems allow an optimum on minimal wear and thus, increase efficiency and performance with wind power systems. Maintenance costs reduce significantly due to prolonged service intervals.

Slip ring systems are also used in robotics, industrial automation and other applications.

FLEXIBLE CURRENT CONNECTION

Flexible current connectors and power feeds are used to electrically connect mechanically separated components. Such connectors can be found in switchgears, electric machines, welding robots and galvanic equipment.

See Schunk Contacts and Flexibles

COMMUTATOR SERVICE

To ensure appropriate operation of electrical machine, reduce wear of brushes, commutator or sliprings must be round and smooth. We diagnose commutator, measure its roundness and protuberance of commutator plates.

We offer high power electric machine commutator grinding on site.

PANTOGRAPHS AND SLIDING STRIPS

Schunk has been developing and manufacturing top quality products for railway technology for more than 90 years. Schunk products such as carbon brushes, brush holders, brush rockers, earthing contacts, as well as collector strips, pantographs and third rail systems are used worldwide by reknown producers and operators of:

high speed trains
long-distance and light trains
People-Mover-Systems
electrical trams and traction vehicles

Schunk pantographs are solidly characterized by a high degree of lateral rigidity, individually suspended collector strips, a low overall weight, low maintenance requirements and hydraulic frame damping. Optimally adapted to their respective uses, Schunk pantographs get and keep trains moving.

Contact us and we will assist you in selecting and designing optimal pantographs for your uses.

See inormation about current transmision systems and pantographs

AUTOMOTIVE

Modern cars contain over 100 electric motors. Schunk components provide exemplary service in these motors. ABS, starters, fans (for ventilation and air-conditioning), power windows, seatbelt tensioners, fuel pumps, sun roofs, power seat adjusters or windshield wipers – they are all equipped with carbon brushes and brush systems made by Schunk.

For that purpose, Schunk delivers annually over 500 million brushes and brush systems to the automotive industry, often carbon brush holders or ready-to-install modules as well. Systematic automotive technology ensures increased driving safety, for example with ABS, as well as modern engine management, for example in fuel pumps, and a decrease of CO2 in the stop-and go-starter.

More information on brushes and brush systmes for automotive applications

SMALL MOTOR TECHNOLOGY

Carbon brushes made by Schunk are the “driving forces” in countless fractional horsepower motors of appliances, toys and power tools for handymen and professionals worldwide. Dozens of Schunk components are in everybody’s household, from washers to blenders and to hair dryers.

Schunk Materials delivers the core elements of any electric motor: Carbon brushes, entire brush holder systems and brush yokes for the transmission of the electric power. We also ensure continued operation even after intensive use: Our products are subjected to continuous durability testing in our own laboratories.

Applications: household, power tools, mini- and micro-motors.

Brochures on brushes for low power motors and power tools