Page 13 - Elevator-series-brochure-USA

H
F
LB50, 55
10.35 in
LB60
15.29in x 9.88in
LB50, 55
Ø6.61 in
LB60
Ø8.62 in
C
Model
Rated speed
Maximum speed (115%)
Stroke ‘S’ (min.)
Impact mass range
LB 50
LB 55
1104 1270 83.03 2756-16535
LB 60
1199 1379 98.58 3307-22046
Height ‘H’ max. in (extended)**
Oil volume
Reduced stroke
EN 81.1 ft.min
1732 1905 2076
S
LB50, 55, 60
Ø0.87 in
LB50, 55, 60
9.84in square
LB50, 55, 60
7.87in square
The Oleo LB 50-60 gas hydraulic buffer range is designed specifically for high speed elevator applications typically seen in high rise buildings where speeds over 984 ft/min 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 2287 ft/min.
The Oleo principle of designing self contained, maintenance free* buffer units is applied to the LB50-60 series of buffers and offers an easy installation process, this makes Oleo buffers 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.
0.98 in
ft/min 1002 ft/min 1152
in 68.50 lbs 3307-16535
166.0 in 96.0
in 92.2 lbs 459.4
198.4 243.3 113.9 141.6
110.1 136.0 533.1 1058.7
Height ‘C’ min. (compressed)**
Height ‘F’ to reservoir top
Weight
no oil (dry)
based on EN81.1 rule 10.4.3.2 and ASME A17.1 rule 2.22.4.1.2
Reduced stroke ft/min 1732 1905 2076 ASME A17.1
gallons 7.3 8.8 19.3 Reduced stroke: Rated speed with terminal speed limiting device,
LB elevator buffers are delivered without oil. Buffers need to be filled with oil as per the installation instructions. The oil used must conform to the specification on the buffer data plate – ISOVG68 – SG.88/.90 at -18°F – hydraulic. Pour point 60°F or lower. Viscosity index 75 or higher.
* * 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.
LB HIGH SPEED SERIES
OLEO INTERNATIONAL 13