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Overspeed Governors

Research for innovative solutions and rigid control of product quality are key features of Wittur Safeties. 
Wittur overspeed governors can cover a broad range of rated loads and speeds and can be applied both to machine roomless and traditional installations. Our overspeed governors can be engaged at any point along perimeter of pulley and assure high life time due to limited pulley wear.

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OL35-NA, OL35E-NA

Overspeed Governor

OL35-NA, OL35E-NA

OL 35-NA: A17.1 compliant safety component for bi-directional electrical disconnect and down direction mechanical release to engage a safety gear when overspeed is detected.

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OL100

For high speed and high rise applications

OL100

The OL100 detect overspeed by their flyweight mechanism and engage the safety gear by a separate lever which activates the rope brake mechanism.
 

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Tension weights

Tension weights

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CTW

Wittur Compact tension Weight

CTW

Narrow design and less weight of device makes the CTW the perfect choice for tight space requirements in elevator pits.

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Product Comparison Tool

  EOS OL35E/M OL100
  Up to 2,50 m/s Up to 3,00 m/s Up to 10,00 m/s
Direction Uni & Bidirectional Unidirectional Unidirectional
Min. Rated Speed (m/s) 0,15 0,3 0,51
Max. Rated Speed (m/s) 2,5 3 10
Max. Trravel Height (m) 120 165 400
Min. Governor Brake Force (N) 500 / 800 500 / 800 / 1.100 1.100 / 2.100 / 2.900
Rope Diameter (mm) 6 / 6,5 / 8 6 / 6,5 / 8 08/10/2013
Pulley Diameter (mm) 200 / 300 200 / 203 / 26 304 / 476
UCM Solution YES YES -
EN 81-20/50:2014 X X X
GOST R 53780-2010 - X X
GB 7588 X X X
KOREA - X X
ASME A17.1 - X X