Reliable STT293 - Counter-Jib Ballast Dimensions

STT293 CONCISE TOWER CRANE MANUAL
-39- EURC1.0ENG
1.4.2. COUNTER-JIB BALLAST DIMENSIONS
Length of jib 30 35 40 44 50 54 60 64 70 74
Length of
counter jib
16.2 16.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2
Blocks
2A+C 2A+B+C 3A+C 3A+B 4A+C 4A+C 5A 5A+C 5A+B+C 6A
During
working
and
telescoping
Weight
(kg)
9000 11000 13000 14000 17000 17000 20000 21000 23000 24000
Block type
Density (t/m
3
)
Weight (kg) Tolerance
A
2.4 4000 ±1%
B
2.4 2000 ±2%
C
2.4 1000 ±2%
Fig. 1.4.2-1
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