Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.Bidirectional progressive safety gear
BSG-25P
- Safety gear acting in both upward and downward directions
- Innovative and patented system: progressive braking power is generated by expanding the C-profiled safety gear main body, which is acting as a C-type spring.
- Lightweight design: no additional spring elements required
- Increased running clearance between brake linings and guide rail avoids risk of scratching brake linings or unintended tripping
- Comfortable floating suspension ensuring simple and accurate alignment in relation to guide rail
- Easy adjustment for guide rail size and shape (movable safety gear blocks)
- Whole load range split up into steps so that no additional adjustments needed within one load step
- Standard fixing via separate housing below car frame
- Integration in vertical/horizontal frame beams available as option
- Wide range of options available as safety gear housing, synchronization linkage, governor rope fixing or safety switch
Technical Features
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Max. nominal speed
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v = 2,00 m/s
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Max. overspeed governor tripping speed
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vmax= 2,50 m/s
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Mass to be gripped (P+Q)
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(P+Q) = 590 - 2550 kg
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Max. nominal load
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Q= 1100 kg
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Max. allowed tripping force of the overspeed governor
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1700N
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Applicable width of guide rail head
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k= 8-16 mm
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Min. width of guide rail running surface
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n = 22 mm
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Guide rail manufacturing condition
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Drawn or Machined
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surface condition of guide rail
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Dry or Oiled
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approved according to
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European Lift Directive 95/16/EC
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applicable standards
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European Standard EN81
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