Seatrax Inc. Offshore Cranes Hydraulic System Types

All technical papers are available in PDF and compressed formats (Recommended for Mac/Safari users).

Seatrax High-Pressure Filtration Package

Seatrax has developed a high-pressure filter package available for cranes equipped with variable or fixed displacement hydraulic systems.

Compatible with the existing hydraulic filtration system.

Provides a separate filter for the main/auxiliary, boom and slew pumps.

Installation requires only common hand tools.

...more

Main Return Line Filter Package

Seatrax has incorporated a low-pressure, large main return line filter as a standard component on all cranes. This filter package is available as an after-market retrofit kit for older Seatrax cranes equipped with the smaller dual filters on the return lines...more.

Closed vs. Open Loop Safety Considerations

High pressure, variable displacement piston hydraulic systems provide the best performance, efficiency and component life for use in high duty cycle offshore cranes. Piston hydraulic circuits are available in two configurations, closed circuit and open circuit. The following information details the safety and ramifications of closed and open circuit hydraulic systems as applied to hoisting and slewing operations of offshore cranes...more.

Seatrax Hydraulic Options

Three standard hydraulic options are available to power Seatrax marine cranes:

High flow, high pressure, variable displacement piston pumps

Medium flow, high pressure, variable displacement piston pumps

Medium flow, medium pressure, fixed displacement external gear pumps...more.

All technical papers are available in PDF and compressed formats (Recommended for Mac/Safari users).
	Seatrax High-Pressure Filtration Package Seatrax has developed a high-pressure filter package available for cranes equipped with variable or fixed displacement hydraulic systems. Compatible with the existing hydraulic filtration system. Provides a separate filter for the main/auxiliary, boom and slew pumps. Installation requires only common hand tools. ...more
	Main Return Line Filter Package Seatrax has incorporated a low-pressure, large main return line filter as a standard component on all cranes. This filter package is available as an after-market retrofit kit for older Seatrax cranes equipped with the smaller dual filters on the return lines...more.
	Closed vs. Open Loop Safety Considerations High pressure, variable displacement piston hydraulic systems provide the best performance, efficiency and component life for use in high duty cycle offshore cranes. Piston hydraulic circuits are available in two configurations, closed circuit and open circuit. The following information details the safety and ramifications of closed and open circuit hydraulic systems as applied to hoisting and slewing operations of offshore cranes...more.
	Seatrax Hydraulic Options Three standard hydraulic options are available to power Seatrax marine cranes: High flow, high pressure, variable displacement piston pumps Medium flow, high pressure, variable displacement piston pumps Medium flow, medium pressure, fixed displacement external gear pumps...more.

Design Features