Wittur products
ESG - Electromechanical
Its reliable braking element is combined with the latest SIL3 position and speed detection and electromechanical gear activation: overspeed governor, tension device and rope loop are no longer needed, and more shaft space can be used for the car.
Product information
Official manufacturer details
Its reliable braking element is combined with the latest SIL3 position and speed detection and electromechanical gear activation: overspeed governor, tension device and rope loop are no longer needed, and more shaft space can be used for the car.
Highlights
- Progressive safety gearUni / Bi-directional
- Mechanism activated by Compression Spring
- No mechanical overspeed governor system needed
| ESG-17BS | ESG-25BS | ESG-25U | |
|---|---|---|---|
| Direction | Bidirectional | Bidirectional | Unidirectional |
| Min. Rated Speed (m/s) | 0,15 | 0,15 | 0,15 |
| Max. Rated Speed (m/s) | 1,4 2,0 (if no EN81-21/UCM) | 2,00 | 2,25 |
| Max. Tripping Speed (m/s) | 1,71 2,4 (if no EN81-21/UCM) | 2,33 | 2,63 |
| Min. Mass to be gripped (kg) | 530 | 1.000 | 500 |
| Max. Mass to be gripped (kg) | 1.680 1.550 (DO guide rails) | 2.500 | 2.500 MD 2.100 MO |
| Min. Rated Load (kg) | - | - | - |
| Max. Rated Load (kg) | - | - | - |
| UCM Brake/EN 81-21 stopping gear | YES | YES | NO |
| Guide Rail Blade (mm) | 9 - 16 | 9 - 16 | 9 - 16 |
| Guide Rail Conditions (*) | MO | MD | DO | DD | MO | MD | MO | MD |
| EN 81-20/50:2020 | X | X | X |
| GOST R 53870-2010 | - | - | - |
| GB 7588 | - | - | - |
| KOREA | - | - | - |
| ASME A17.1 | - | - | - |
| * MO = Machined Oiled DO = Drawn Oiled MD = Machined Dry DD = Drawn Oile | |||
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