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General · Allgemein · Généralités
Generalidades · Generalità
Crane specifications
BOOM
5-section full power telescoping boom, partially synchronized,
rounded box section design with 7 sheaves at the boom head.
The synchronization system consists of 2 telescoping cylinders,
extension and retraction cables. Hydraulic cylinder fitted with holding
valve. 2 easily removable wire rope guards, rope dead end provided
on both sides of boom head. Boom telescoping sections are guided
by wear pads both vertically and horizontally.
Length, fully retracted ..... 12.8 m
Length, fully extended ..... 51.0 m
Extension speed ............. 38.2 m in 170 s
Root diameter ................. 0.44 m
BOOM ELEVATION
Double-acting hydraulic cylinder with holding valve.
Combination controls for hand or foot operation.
Boom angle indicator.
Automatic speed reduction and slow stop function.
Boom angle ..................... -1.5°– 80.5°
Boom raising speed ........ 20° to 60° in 46 s
JIB
2-stage swing-around boom extension with triple offset (tilt type).
Single sheave at jib head.
Stows alongside base boom section.
Length ............................. 10.1 m, 17.7 m
Offset .............................. 3.5°, 25°, 45°
Root diameter ................. 0.396 m
AUXILIARY LIFTING SHEAVE (SINGLE TOP)
Single sheave mounted to main boom head for single line
work (stowable).
Root diameter.................. 0.396 m
ANTI-TWO-BLOCK DEVICE
Pendant type over-winding cut out device with
audio-visual (FAILURE lamp/BUZZER) warning system.
SLEWING
Hydraulic axial piston motor with planetary slewing speed reducer.
Continuous 360° full circle slewing on ball bearing.
Equipped with manually locked/released slewing brake.
Positive slewing lock for pick and carry and travel modes,
manually engaged in cab. Twin slewing system: Free slewing or
lock slewing controlled by selector switch on front console.
Slewing speed ................. 1.5 min
6 | GR-1000EX-4
{rpm}
-1
WINCH
MAIN WINCH
Variable speed type with grooved drum driven by hydraulic axial
piston motor with speed reducer. Power load lowering and
raising. Equipped with automatic brake and counterbalance valve.
Controlled independently of auxiliary winch.
Equipped with cable follower and drum rotation indicator.
MAIN DRUM
Root diameter x width ........................................ 0.362 m x 0.681 m
Wire rope diameter x length ................................... 19 mm x 285 m
Drum capacity ........................................................ 346 m, 7 layers
Maximum single line pull (1st layer) ................. 89.1 kN (9,090 kgf)
Maximum permissible linepull wire strength ..... 64.7 kN (6,600 kgf)
AUXILIARY WINCH
Variable speed type with grooved drum driven by hydraulic axial
piston motor with speed reducer. Power load lowering and
raising. Equipped with automatic brake and counterbalance valve.
Controlled independently of main winch.
Equipped with cable follower and drum rotation indicator.
AUXILIARY DRUM
Root diameter x width ........................................ 0.362 m x 0.681 m
Wire rope diameter x length ................................... 19 mm x 147 m
Drum capacity ........................................................ 346 m, 7 layers
Maximum single line pull (1st layer) ................. 89.1 kN (9,090 kgf)
Maximum permissible linepull wire strength ..... 64.7 kN (6,600 kgf)
WIRE ROPE
Non-rotating wire (no-spin), extra improved plow steel, preformed,
independent wire rope core, right regular lay.
Main & Auxillary ................ 19 mm
HOOK BLOCKS
100 t (option)
7 sheaves with swivel hook and safety latch
50 t (option)
5 sheaves with swivel hook and safety latch
35 t (option)
3 sheaves with swivel hook and safety latch
6.6 ton
Ballasted hook with swivel and safety latch
COUNTERWEIGHT
Self-removable counterweight ................ 11,200 kg
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