| Crane Capacity |
| Maximum Lift Capacity |
6,680 lbs at 8.5 ft. with 4-parting loadline |
| Working Radius |
Minimum 1.6 ft. to Maximum 24.6 ft. |
| Hook Height Above Crane Installation Base Level |
Maximum 21.6 ft (Approx.) |
|
|
| Boom Length |
Five-section box beam type telescoping boom with boom
angle indicator |
All booms retracted |
10.9 ft
|
Second stage extended |
18.2 ft |
Third stage extended |
25.3 ft |
| Boom Telescoping Cylinder |
Double acting type with counterbalance valve |
| Boom Extending Speed |
14.4 ft/11 seconds |
| Boom Raising Cylinder |
Double acting type with counterbalance valve |
| Boom Raising Speed |
1" to 81" / 7 seconds |
|
|
| Winch Design |
Hydraulic motor driven, spur gear reduction,with automatic
mechanical brake |
| Single Line Pull |
1670 lbs |
| Hoisting Speed |
|
Single Line Speed |
223 lbs / min at 3rd layer |
Hook Speed |
56lbs / min at 3rd layer with 4-part line |
| Hook Block |
6614 lb capacity, 2 sheaves with safety latch |
| Hydraulic Motor |
Axial plunger type |
| Wire Rope |
|
Construction (JIS) |
IWRC 6 x Fi(29) Galvanized Grade B |
Diameter x Length |
5/16 in. x 164 ft. |
Breaking Strength |
9740 lbs |
|
|
| Slewing |
Hydraulic Motor driven, worm gear
reduction, worm self-locking brake |
| Slewing Range |
360° continuous
rotation on ball bearing race |
| Hydraulic Motor |
Trochoid
type with automatic lock mechanism |
| Slewing Speed |
2.5 rpm |
| |
|
| Safety Devices |
|
| |
1. Pressure relief valve for hydraulic
circuit
2. Counterbalance valves for boom raising and boom
telescoping cylinders
3.Boom angle indicator with load indicator
4. Automatic mechanical brake for winch
5. Load meter
6. Overwinding alarm
7. Hook safety latch
|
| |
| Rust Prevention |
|
| Inner and outer surfaces of structural parts |
Zinc coating (excepting cylnders) |
| Raising Cylinder Rod |
Hard chromium coating with double layers |
| Gear Cases for Slewing |
Zinc coating |
| Raising Cylinder Pipe |
Stainless Steel |
| Couplings |
Stainless steel |
| Wire Rope |
Coated type |
| Miscellaneous Parts |
GEOMET finish and other coatings |
| Painting |
Special rust prevention paint |
| |
| Control Valves |
4-valve interlocking type (with stainless steel lever)
|
| |
Mount the valve and lay piping by matching the actual
valve dimensions. |
| |
Take the hydraulic power source (pump, tank) out of
the ship. (Prepare necessary pipes as they are not included
in the valve) |
| |
| Hydraulic System |
|
| Engine |
Engine with accelerator |
| Hydraulic Pump |
|
| Rated Pressure |
2,990 psi |
| Rated Delivery |
15.9 gal./min. |
| Hydraulic Valves |
|
| Control Valve |
Multiple control valve, spring centered, spool-type,
with pressure relief valve |
| Pressure Relief valve setting |
2,990 psi |
| Counterbalance valve |
Boom raising and boom telescoping cylinders |
| Hydraulic Actuators |
|
| Hydraulic motors |
Hoisting: Axial plunger type |
| |
Slewing: Axial plunger type |
| Hydraulic cylinders |
Double acting type |
| |
1 x Boom raising cylinder |
| |
2 x Boom telescoping cylinder |
| |
Note: When an electric motor drive system
which regulates pump delivery constant is emplyed, set
the rated delivery at a level less than 10.6 gal./min.
Note: The figures in relation to the speed are on
the basis of no-load running at rated oil flow condition. |
| |
| Range Diagram |
|
|
| |
| Load Chart |
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