Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur has been providing the lift industry with versatile and high-quality doors. More than 30 years later Wittur is the leading company in the lift doors segment, with state-of-the-art technical solutions and unparalleled product range. Regardless of whatever your lift requires - a round door with panoramic panels rather than a straight or a folding one - Wittur can supply the best solution for your needs.
Research for innovative solutions and rigid control of product quality are key features of Wittur Safeties. 
Wittur offers a wide range of car and counterweight frames. Modularly conceived, these components are very flexible in terms of rated load, height and width. The wide range of accessories includes safety gears, suspension pulleys, compensation chain and travelling cable hangers, allowing configurations suitable for different shaft layouts, lift designs and rated speeds. Wittur can also supply special frames for tailored projects.
Research for innovative solutions and rigid product quality control are key features of Wittur Safeties.
According to EN81-1/2 A3 and EN81-21 A1 (new lifts in existing buildings), new lifts installed after January 1st 2012 must be equipped with a system to prevent a car moving away from the floor with the landing door not in the locked position and the car door not in the closed position.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors..jpg)
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.Unidirectional progressive safety gear for counterweight frame application
WCWSG 04/10
- Safety gear acting in downward direction
- 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
- Compact unit including synchronization for counterweights
- 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
- Integration in vertical/horizontal frame beams available on request
- Wide range of options available as safety gear housing, synchronization linkage, governor rope fixing or safety switch
Technical Features
| TYPE |
WCWSG04
|
WCWSG10
|
|
Max. nominal speed
|
v = 6,00 m/s
|
v = 8,00 m/s
|
|
Max. tripping speed
|
Vmax = 7,54 m/s
|
Vmax = 10,50 m/s
|
|
Applicable widths of rail head (type: machined/not lubricated)
|
|
|
|
- Simplex
|
k = 16 mm / 19 mm
|
k = 16 mm / 19 mm
|
|
- Duplex
|
k = 19 mm
|
k = 19 mm
|
|
Min. width of guide rail running surface
|
n = 30 mm
|
n = 30 mm
|
|
Max. mass to be gripped (P+Q):
|
|
|
|
- Simplex
|
Fmax = 1500 - 5000 kg
|
Fmax = 1500 - 5000 kg
|
|
- Duplex
|
Fmax = 9500 kg
|
Fmax = 9500 kg
|
|
Approved according to
|
European Lift Directive 95/16/EC
|
European Lift Directive 95/16/EC
|
|
Applicable standards
|
European Standard EN81
|
European Standard EN81
|
Subject to change without notice
Contact
Martin Tang,
Key account manager for KONE
Lucifer Li,
Key account manager for Schindler
Jeff Bian,
Key account manager for OTIS
Contact
