Principal

The manual steering system is the device that a helm pump driven by the rotation of the steering wheel supplies oil to the cylinder and pushes the piston of the cylinder to have the rudder shaft move.
It is a simple system consisting of a helm pump and a cylinder.

Cylinder has 4 types of single, rotary, twin, and two rudder.

D-I offers the best options to combine kinds of help pumps and cylinders.

Our choice mostly satisfies customers, but in case of your special needs, you have many optional ways.

The number of rotation wheels is defined by the capacity of the cylinder and the helm pump (cc/rev).

You can select the specification you want.


Key features

Simple system
2 helm pumpsâ??below 50cc, above 50cc
Compatible with commercial handles in the range of 300 mm to 1,500 mm
Dual handle installation is possible.
The lock valve is supplied as default, which can fix the rudder where the handle stops.
Structure that the rudder does not rotate even when the tide powers the rudder
Rudder angle indicator attachable

Application

Suitable for vessels below 500 HP
A range of vessels from leisure ships, fishing boats, commercial boats, and passenger boats