7085-S POWER ASSIST STEERING CYLINDER

The Kobelt 7085-S power assist steering cylinders are controlled via inputs from fluid pressurized by a helm pump but are powered by a machine-driven pump.

This configuration enables responsive steering while requiring minimal human effort. In the case of a failure of the machine-driven pump the unit automatically switches to manual mode which allows for
steering via helm pump pressure only.

Kobelt 7085-S cylinders consist of three main subunits which are the main cylinder, the control cylinder, and the valve.

Constructed in corrosion resistant materials and finishes, the 7085-S power assist is suited for harsh marine applications. When a single balanced cylinder is not sufficient to provide the required rudder torque, it can be installed in a twin cylinder configuration whereby the 7085-SB would serve as a master with a 7085-B second cylinder of the same stroke.

Unbalanced cylinders always should be installed in a twin cylinder configuration

For balanced, the 7085-S has the following stroke and displacement ranges, assuming a single cylinder at 800 psi (55 bar) at a 35º rudder angle / 45º rudder angle.

Torque: 4,580 to 9,200 lbs. ft. (633 to 1.272 kg/m)  /  3,270 to 6,500 lbs. ft. (452 to 899 kg/m)

Stroke: 10″ to 20″ (254 mm to 508 mm)
Displacement: 78.5 in³ to 157 in³ (1.286 cm³ to 2.572 cm³)

KEY BENEFITS:

• LR type approved
• Constructed from corrosion resistant materials for harsh environments
• Input from helm pump and/or an electric steering pump
• Compact design
• Available in balanced and unbalanced models
• Available in four different cylinder strokes

For this cylinder is a repair kit available.