HullWiper collects marine fouling removed from hulls, rather than polluting local port water and risking the spread of harmful invasive species. Captured residues are pumped into a filter unit and then deposited into dedicated drums onshore, which are collected by a locally-approved environmental waste disposal company. The effectiveness of HullWiper's filter system in cleaning the waste water has been verified by AMT Environmental, an environmental analysis and consulting professional. A clean hull also improves a vessel's speed and reduces carbon emissions.

HullWiper sprays adjustable high-pressure seawater jets directly onto a ship's hull at a very high velocity to dislodge waste materials, without using scrubbing, harsh chemicals or abrasive materials required for traditional methods. Unlike traditional brush cleaning, Hullwiper uses high-pressure jets for cleaning, thus leaving expensive antifouling surfaces smooth, intact and undamaged. The use of high-pressure jets for cleaning ensures that HullWiper does not damage the ship's expensive antifouling coatings.

Features

Variable and increased speed dependent on biofouling and coating condition
Does not damage hull antifouling coating
Uses seawater as a medium for hull cleaning
Extremely good power and stability
Fast mobilisation / demobilisation
Operational 24/7

Technical Specifications

Dimensions
- 330 cm (L) x 170 cm (W) x 85 cm (H)

Frame
- Stainless steel, tube structure

Weight
- 1,275 kg

Max. depth
- 40m

Buoyancy
- Solid cell structure

Power input
- 690 Vac, 3 phase, 60 Hz, 37 kW

Oil resevoir
- 40 litres

Hydraulic power
- Flow 195 l/min 130 bar compensated with an overpressure of 0.5 bar

Hydraulic oil
- Standard is 32 hydraulic oil but the system can use all types of hydraulic oil

Thrusters
- 8 hydraulic thrusters 3 Hp

Water pump
- Capacity up to 635 l/min

Water pressure
- 50-450 bar 80 l/min

Speed
- Horizontal: 2.0 knot
- Vertical: 0.7 knot
- Turn xyz: 360 deg

Light
- 2 x 250W LED light
- 1 x 36 W LED light
- 3 channel light dimmer

Sensors
- 4 bar depth sensor
- 160 bar oil pressure sensor
- Magnetic 5 level oil sensor with automatic shut down (with 25% oil level)
- 600 bar high water pressure sensor

Camera
- CMOS Sensor in 1280 x 800 resolution
- Removable IR-cut filter for day & night function
- Built-in IR Illuminators, effective up to 15m
- Real-time H.264, MPEG-4 and MJPEG Compression (Triple Codec)
- Multiple simultaneous streams
- Activity adaptive streaming for dynamic frame rate control
- Tamper detection for unauthorised changes
- Built-in 802.3af Compliant PoE
- Built-in MicroSD/SDHC card slot for onboard storage

Others
- Auto depth
- Auto heading
- Digital control of thrusters
- Speed m²/hour

Surface Equipment

Power control cabinet
- Power input of 220 V 50 Hz 3 phase, 12 kW
- Digital instruments for volts, amps and Hz
- Fuses and ground fault system
- Connections for umbilical

Surface viewing
- 60 cm (L) x 54 cm (W) x 64 cm (H)
- PC rack with 2” x 32” monitors
- Idcon overlay system and data presentations
- Depth, date, time, heading, twist counter, video grabber and screen writer
- Online recording

Umbilical
Kevlar armoured cable length 350m, outer diameter 24mm
- 4 x 8 AWG
- 4 x 12 AWG
- 8 x single mode fibers
- Auto altitude
- Lighting
- ¾” HP water hose 300 bar

High pressure pump
CD100 135 l/min
- Working pressure 230 bar 3336 Psi
- Maximum pressure 350 bar – 5076 Psi
- Pump Triplex ceramic plunger
- Remotely operated start-stop
- Remotely operated pressure adjustment

Cleaning unit
- 3x cleaning discs, each disc 480mm diameter; cleaning width 1,460mm
- 4 nozzles on each disc; 12 in total
- Waste collection system
- Waste suction pump 38 m³ / hour