165T_NOV:Crane :: x6m.global

NOV 165T AHC Crane 2nd hand

Parameter	Value
Max SWL (Surface, Main)	165 t
Max SWL (Surface, Aux)	32 t
Max SWL (Subsea, Main)	50–165 t @ 3000 m
Max SWL (Subsea, Aux)	17 t @ 3000 m
Max Depth	3000 m
AHC Accuracy	±0.2 m (both Main and Aux)
Outreach	45–54 m
Type	Knuckle Boom AHC (dual-winch)
Manufacturer	NOV Norway AS
Year of Manufacture	2009

1. Crane Model

Crane Model Details

Parameter	Specification
Model	OC4475KSCE-(30-165)-(50-17)(32)(20-50)AHC
Type	Knuckle Boom Subsea Crane with Active Heave Compensation (AHC) on both Main and Aux
Year of Manufacture	2009

2. Lifting Capacity & Load Chart

Main Hoist (1 Fall, DAF=1.30)

Parameter	Specification
Max SWL Internal/Surface Lift	165 t (0–50 m depth; full area, HS ≤4.0 m)
Max SWL Subsea Launch Zone	165 t (air to 150 m; combined SWL + wire weight)
Max SWL Subsea Submerged	165 t (>150 m to 3000 m; Normal/Extended AHC areas; offlead ≤2.0°)
Max SWL Sea Lift (Vessel-to-Vessel)	165 t (HS=0.0 m; between upper/lower limits for lift-off/set-down)
Outreach	Up to 54 m (derates to ~50 t @ 50 m radius)
Notes	AHC limited to Normal area for lift-off from seabed; Extended for submerged handling.

Auxiliary Hoist (Secondary, 1 Fall, DAF=1.60)

Parameter	Specification
Max SWL Internal/Surface Lift	32 t (~10 m radius; full area, HS ≤4.0 m; for lighter tools)
Max SWL Subsea Lift	17 t (air/submerged to 3000 m; combined SWL + wire weight; offlead ≤5.0°)
Max SWL Sea Lift (Vessel-to-Vessel)	32 t (HS ≤0.5 m; above lower limit for lift-off/set-down)
Max SWL Personnel Lift	1.5–2 t (basket; HS ≤2.0 m, wind ≤10 m/s, daylight visibility)
Outreach	Up to 40–52 m (derates to ~10 t @ 40 m radius)
Notes	Full AHC integration; no AHC limitations vs. main hoist.

3. Hydraulic & Power Systems

Feature	Specification
Power Pack	Dual redundant HPU (Hydraulic Power Unit)
Pressure	300–350 bar
Flow	High-volume pumps for fast slewing/hoisting on both Main and Aux
Cooling	Seawater or closed-loop
Emergency Operation	Accumulator backup for boom lowering in power loss
Power Needed	Up to 1,150 kW peak
Power Source Required	Electrical supply from Vessel (690 V AC, 60 Hz, 3-phase)

4. Operational Modes

Mode	Use Case
Normal Lifting	Deck-to-deck, supply handling (both Main and Aux)
AHC Subsea	Subsea-Installation/-Lift (AHC active on Main and Aux)
Constant Tension	Pipeline pull-in, cable laying
Man-Riding	Personnel transfer (with certified winch & basket; Aux AHC preferred)
Parking/Stow	Storm condition, transit

5. Compliance & Certification

Compliance	Reference
DNVGL-OS-E101 / ST-E101	✓
API Spec 2C	✓
ILO 152 (man-riding)	✓
NORSOK R-002 / Z-015	✓

6. Crane Present Operational Status

Aspect	Details
Overall Condition	Good structural integrity; visually operational, non-functional due to missing HMI panel and MRU unit. Last operation unknown; cold-stacked ~8 years. Wire ropes and sheaves OK (no breaks, minimal wear). Corrosion on boom, hooks, valves, and railings requires treatment. No load test or overhaul certificates available.
Key Deficiencies (Critical/Severe)	Missing HMI (prevents startup/testing). Corroded hook blocks (need full overhaul/load test). Insufficient greasing (slewing bearings/sheaves). Hydraulic: Filters overdue; tank sludge; damaged hoses/cylinders need testing.
Recommendations	Source HMI/MRU/manual Vol. #2; conduct EMAG on wires, proof load test, and full hydraulic/gearbox service before removal. Estimated prep: 2-4 weeks with parts.