Product portfolio
Design 99 mm – hollow shaft and cone shaft – The incremental HeavyDuty standard

Design 99 mm – hollow shaft and cone shaft


  • Blind hollow shaft with ø12 mm or ø16 mm
  • Cone shaft ø17 mm (1:10)
  • 500 ... 5000 ppr
  • Operating speed up to 10 000 rpm
  • Rotatable terminal box, connector M23 or cable outlet
  • EMS function monitoring for maximum system uptime
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Design 115 mm – solid shaft with EURO flange B10


  • Solid shaft ø11 mm with EURO flange B10
  • 500 ... 5000 ppr
  • Operating speed up to 12 000 rpm
  • Rotatable terminal box
  • EMS function monitoring for maximum system uptime
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E-Series – pure functionality

E-Series – pure functionality


  • Blind hollow shaft, cone shaft and solid shaft
  • 500 … 2500 ppr
  • Rotatable terminal box or flange connector M23
  • Uncoated housing
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Redundant sensing – Integrated digital speed switch

Redundant sensing


  • Blind hollow shaft and cone shaft
  • 2 x 500 ... 5000 ppr
  • Two terminal boxes  opposite to each other
  • Galvanically isolated opto ASIC and signal electronics for redundant sensing
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Twin encoder combination


  • Two encoders sharinge a common drive shaft
  • Redundancy with to sensing and cabling in two separated  housings
  • Two parallel terminal boxes
  • Solid shaft ø11 mm with EURO flange B10
  • 2 x 500 ... 5000 ppr
  • Two different resolutions possible
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Combination with mechanical speed switch


  • Mechanical speed monitoring by centrifugal principle
  • Switching speed up to 4500 rpm
  • Optionally with basic encoder HOG86M and redundant sensing (HOG86M+FSL)
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Your benefits

The HOG86 / POG86 series is a complete product family of incremental HeavyDuty encoders. It is based on the enormous experience of the HeavyDuty world market leader, and always offers you an economical solution for your application.

HOG86 / POG86 rotary encoders operate reliably and permanently in 24/7 operation even in the toughest conditions. They make a significant contribution to the prevention of failures and high standstill costs and thus make a key contribution to the high availability of your machine or system.

  • Highest availability and unrivalled durability under harshest ambient conditions
    • Proven HeavyDuty design, bearing on both shaft ends, ultra-robust HeavyDuty connection and sensing technologies
  • Reliable in any environment
    • Extremely durable aluminum housing, outstanding corrosion resistance (category C4), long-term stable sealing concept, operating temperature range –40 ... +100 °C
  • Efficient protection against bearing damage
    • Bearings at both shaft ends, oversized and widely spaced bearings, large reserve capacity to endure strong radial / axial shaft loads, isolated bearings or hybrid bearings with ceramic balls as protection against inductive shaft current
  • Improved control and process quality in the application
    • Interference-immune high-precision sensing by Opto-ASIC, best electromagnetic compatibility
  • Reliable signal transmission over long distances
    • Powerful output drivers for cable lengths up to 350 m (HTL-P) and 550 m (TTL), signal transmission via optical fiber up to 1500 m
  • Explosion protection as standard
    • Almost every product with standard ATEX certification Ex II 3G/3D for use in zone 2
  • Finding the right product quickly and with maximum flexibility
    • Every standard shaft and flange design (hollow shaft, cone shaft, solid shaft with EURO flange B10), terminal box / flange connector M23 / cable outlet, output signals HTL-P / TTL
  • Large variety of designs and features
    • Function monitoring EMS, redundant sensing, dual shaft allowing for attachment of a second product, twin encoders, encoders combined with centrifugal switch (FSL), integrated digital speed switch (DSL), cost-efficient E series with non-coated housing
  • Reliable and time-saving installation
    • 8+12 mounting bolts for torque support, terminal box 180° rotatable, encapsulated electronics for protection against ambient impacts during installation with removed terminal box and housing cover
  • Convenient diagnostics for maximum system uptime
    • Permanent supervision of encoder functions by EMS function monitoring, identification of any installation error right in the wiring operation, time-saving installation and error diagnostics


Incremental HeavyDuty encoders provide information on speed and angular position. Their resolution is expressed as the number of pulses (square-wave signals) and the sinusoidal (SinCos) signals per revolution, which the rotary encoder transmits to the controller with each revolution of its shaft. SinCos signals can be interpolated in a controller or in a controller to increase the resolution.

The upstream control identifies the current speed by the pulse numbers counted within a defined time period, while the current position information is identified by the counted pulses or SinCos periods, respectively. At system power-on, a reference travel is required since the encoder information may have been lost during power off and further to eliminate any incorrect result caused by any shaft rotation performed during power-off.

Incremental HeavyDuty encoders are designed for maximum robustness and durability, with enormous mechanical reserves to ensure reliable performance even in the harshest environments:

  • Steelworks and rolling mills
  • Port installations and crane technology
  • Hoists and lifting platforms
  • Materials handling equipment
  • Large drives and generators
  • Wind turbines



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