Hydraulic samplers and components

Even underwater the possibilities of hydraulic systems are multifaceted. So it's not only for this reason that we're happy to present, after a considerable development time, the video-guided hydraulic grab and an autonomous hydraulic unit, which is small, robust and efficient, and can operate at depth as low as 6,000 m (applications: e.g. drills, actuators, manipulators, pumps, hydraulic motors).

	Example products in this category. Please click the products below for details.

Hydraulik Power Unit

The Oktopus hydraulic power unit (OktoHPU) is a compact, hydraulic deep-sea unit, which can supply hydraulic power up to 2 kW either battery-operated or supplied from on ship. It was designed for deployment with the video-guided hydraulic grad and is equipped with a synchronisation system for controlling two hydraulic rams simultaneously. The drive and control components are integrated in the hydraulic tank. The electronic control system is located in a separate pressurised housing. The volumetric flow rate is continuously adjustable.   The unit is available with a variety of power ratings. It's applications are numerous - drilling, breaking, sawing. Each hydraulic tool (open circuit) can thus also be used in submersed applications.   Environmental   IP protection class: IP 68, steady up tp 600 bar Nominal diving depth: 6,000 m Operating temperature: -10 ... +40 °C     Mechanical   Housing: Stainless steel 1.4571     Electrical   Connectors Tank - magnetic valves: Subconn BH4M Hydrauliktank - pressure sesnors: Subconn BH4M Motor: Subconn BHMP3M     Magnetic valves   Nominal voltage: 26 VDC Nominal current: 1.2 A     Pressure Sensors   Nominal voltage: 26 VDC Nominal current: 4 mA without load     Motor   Nominal voltage: 48 VDC Nominal current: 70 A Nominal power: 2.5 kW     Subject to technical changes.

click for larger image DE: Datenblatt Hydraulikaggregat   EN: Data sheet Hydraulik Power Unit

 

Video-Guided Hydraulic Grab

The Video-Guided Hydraulic Deep-Sea Grab can be employed wherever the Box Corer cannot operate. Due to its high unladen weight (2 t) and great force at the edges (max. 45 kN) the Video-Guided Hydraulic Grab penetrates even coarse sands and stone. The grab can hold 0.6 m³ volume of sample.   Equipped with Oktopuss Telemetry and Hydraulic Power Unit (OktoHPU) the device can be operated with any cable that holds an optical fibre. Using an optical fibre cable a color video showing the seafloor and the sampling process can be obtained. Optional sensors enable you to simultaneously overview certain data (e. g. pan & tilt, compass, CTD, depth, sonar). Implementing one or more positioning systems can be easily done by the user or at Oktopus.   Do you need to employ the Video-Guided Hydraulic Deep-Sea Grab driven by an coaxial copper cable? Please do not hesitate to contact us reagrding your special requests! Did you know? The Video-Guided Hydraulic Grab is the first scientific device which was approved by the Det Norske Veritas (DNV) in Germany!   Environmental   IP protection class: IP 68 Nominal diving depth: 6,000 m     Mechanical   Dimensions (opened): 1.7 m x 2 m x 1 m Dimensions (closed): 1.6 m x 2.4 m x 1 m     Grab   Area of sample: 1.6 m² Volume of sample: 0.6 m³ Weight in air: 2,010 kg Weight in water: 1,750 kg Force at the edges: Up to 45 kN     Equipment   Oktopus Telemetry VDT3: 1x Gigabit Ethernet Link: 1x Oktopus Color Video Camera II: 1x Oktopus Underwater Light LED 50: 2x Further equipment or special solutions available on request.     Subject to technical changes.

click for larger image DE: Datenblatt VgHG   EN: Data sheet VgHG