Page 17 - Brochure

High Speed LB Series
The Oleo LB 50-60 gas hydraulic bu er range is designed specifically for high speed elevator applications typically seen in high rise buildings where speeds over 5m/s are achieved.
If approved terminal speed limiting devices are employed by applying the reduced stroke calculation the LB 50-60 can deal with speeds up to 10.55m/s.
The Oleo principle of designing self contained, maintenance free* bu er units is applied to the LB 50-60 series of bu ers and o ers an easy installation process, this makes Oleo bu ers the best solution for the life of the installation.
The LB series is designed and built according to strict engineering standards and is universally approved and globally certified.
*other than statutory inspections.
H
F
5.588 6.096 6.426 7.010 2.1100 2.5050
S
LB 50, 55
263mm
LB 60
388.25mm x 251mm
LB 50, 55 Ø168mm LB 60 Ø219mm
25mm
Model
Rated speed
Max Speed (115%)
Stroke ‘S’ (min.)
Impact mass range
Height ‘H’ max. (.extended)**
Height ‘C’ min. (compressed)**
Height ‘F’ to reservoir top
Weight
no oil (dry)
Oil volume
Reduced based
Reduced stroke ASME A17.1 North America
Reduced stroke EN81-20 Europe
LB 50
m/s 5.080 m/s 5.842 m 1.7410
LB 55
LB 60
Expansion tank
Base plate
250mm
273mm
200mm
C
Kg m m m
Kg
1500-7500 4.2144 2.4395 2.3430 202.6
1250-7500 5.0374 2.8935 2.7970 235.2
1500-10000 6.1796 3.5975 3.4550 458.1
**The max and min figures provided take account of the extremes of the tolerance to provide absolute maximum and absolute minimum dimensions. For more details please request detailed installation drawings.
All information included is correct at the time of printing.
Litres 27.80 33.30 73.00
stroke: Rated speed with terminal speed limiting device, on EN81-20 rule 10.4.3.2 and ASME A17.1 rule 2.22.4.1.2
m/s 8.850
m/s 8.850
9.730 10.590
9.730 10.590
17