The Influencing Factor of Safe and Stable Opreation of Slip Ring and Electrical Brush

Dditors:admin Time:2016-05-25

1.The Ventilation and Cooling of Electrical Slip Ring and Brush

The main reason why electrical brush and slip ring operate heating energy.Acute friction makes brush cause vibrate in a operating process,makes noise,generates heating energy and result in unstable contact,even makes brush broken.the more number there is brush,the bigger ratio is friction,and the greater damage is friction.Therefore,its especially important of ventilation and cooling matter of generator slip ring,brush.

2. Selection of electrical brush

The quality of brush generator mainly lies on its material.The good or bad material impact on life of brush directly.Different models,different manufactors products,different material and abrasive resistence.Good material impact on dynamic and static contact surface of slip ring and brush,and increse friction pressure of slip ring.Soft material makes brush damage easily,and change frequently,the powder generated by friction attach to surface of slip ring,it has a impact on electrical conduction performance.Therefore,should choose mature electrical brush.

3. The adjustment of Electrical Brush Spring pressure

The operation of comtact pressure of carbon brush and slip ring provided by constant pressure,every constant pressure spring whether uniform or not has a impact on distribution of every brush current density.

4. Regularly Maintenance and clean

When generator units are operating,slip ring and carbon needs to be cleaning regularly to avoid to generate the carbon powder attach to slip ring due to friction of brush and slip ring,result in a unhealth phenomena between slip ring and carbon brush.


LPR-4S Series Slip Ring




A slip ring can be used in any electromechanical system that requires unrestrained, continuous rotation while transferring power or data from a stationary to a rotating structure. A slip ring is also called a rotary electrical interface, collector, swivel or a commutaor. A slip ring can improve system performance by simplifying operations and eliminating damage-prone wires dangling from movable joints.


LPR-4S Series high Current slip ring provides routing space for hydraulics, pneumatics or a concentric shaft mount. The LPR-4S uses advanced fiber brush technology which offers several advantages over conventional slip ring contacts including multiple points of contact per brush bundle, low contact force per fiber and low contact wear rates. In addition, fiber brushes do not require lubrication and produce virtually no wear debris.



◆ No mercury, environment-friendly design

◆ Pins connector, convenient for installation

◆ Speed up to 300 rpm continuous

◆ Steel bearings and machined shaft and housing for harsh environment

◆ Collar mounting is standard; flange mounting is optional

◆ Various lead exits are available

◆ Silver plated rings are standard. Gold plated optional.

◆ Continuous 360° rotation of power or data signals

◆ Sealed unit


◆ Fiber brush technology provides maintenance-free operation (no lubrication required)

◆ Modular design meets special requirements through off-the-shelf manufacturing techniques

◆ Customized configurations for your application


Main Application

◆ Packaging / wrapping machinery

◆ Semiconductor handling systems

◆ Industrial machinery

◆ rotary index tables

◆ Process control equipment

◆ Heavy equipment turrets or cable reels

◆ Exhibit Display machinery Medical equipment

◆ Emergency lighting, robotics Palletizing machines


  Operating Speed

0-300 rpm

  Number of Circuits



380 VAC/DC

  Current Rating

5 A per circuit

  Temperature Range

-20℃ to +60℃

  Contact Material

Precious metal

   Connecting Way

Silver plated pin

  Housing Material

Engineering plastic

Dielectric Strength

≥500 VAC @50Hz, between each circuit

Insulation Resistance

1000 MΩ @ 500 VDC

   Electrical Noise



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