Model : Tuna is planned for light in-board vessels like
1.Honeymoon Boat
2.4-6 Seater Boat
3.Mini- Ambulance /Rescue

Mac-N-Hom make Hydraulic Steering Systems has four sub-sections.

Manual - Hydraulic Drive System

In manual drive system, which is opted by 95% of the medium and small vessels,A steering wheel made of 'anjili' wood or stainless steel will have a keyed hub to drive a steering column.steering column will be fastened at one end to the steering wheel and other end to the spline drive of helmpump. By rotating the steering wheel ,a driver can effortlessly pump oil to the system. Different sizes and shapes of steering wheels are offered by us .

Balanced Hydrolic Linear Actuator

A Balanced Hydraulic Linear Actuator is planned, to turn the Tiller-Arm to both sides of the vessel, smoothly and precisely. Oil supply ports are provided on both sides of this actuator, through which, oil can be supplied to the piston of the actuator. As pressurised oil is supplied from the Helm Pump to the Linear Actuator, the piston-rod will move forward or backward, depending on, to which supply port, oil is provided. The Pistonrod-end / Ram-end of this actuator has a flexible connector, which can be coupled to the Tiller-Arm. As the driver rotates the steering wheel to one side, oil filled in the circuit flows from one side of the circuit to the other side of the circuit, enabling the Pistonrod of Actuator to move from one side to the other. When the driver rotates in opposite direction, the same process will repeat resulting Pistonrod movement in the opposite direction.

Oil Transmission System

Flexible Hoses, as well as Coated Seamless Steel Tubes are recommended for transmission of oil from the Helm Pump to the Hydraulic Actuator. In small boats, Flexible Hoses will be sufficient. But in longer vessels,Coated Seamless Steel tubes are recommended between Flexible Hoses at the Helm Pump-end and Actuator-end.

Oil Feeding and Self-Priming System

To feed oil in the circuit, a Filler Breather is provided on top of a Reservoir Unit mounted on the Helm Pump. After filling oil in the Reservoir, drive-shaft of the Helm Pump is rotated in one direction by a Steering Wheel. Oil will flow to that side of the circuit and air trapped in the other side will escape through a special attachment in the Reservoir. On rotating the Steering Wheel to the other side, any air trapped in the first side will escape through the attachment. Two repeated efforts will make the full driving system ready for driving. An Oil Level Indicator is mounted on the Reservoir Unit for monitoring quantity of oil in the circuit

Endurance-Test-Rig

Quality control system of our company demands endurance test with cyclic operations of Hydraulic Actuator at various hydraulic pressure levels. We are employing electro hydraulic system based Endurance-Test-Rig to ensure quality of balanced hydraulic actuator, that every cylinder supplied is in accordance with highest quality level , for long service life. We ensure each and every element supplied to the customer exceeds the demanded service requirements of the system, Each Hydraulic actuator to be supplied is mounted in our Test-Rig, and undergoes rigorous testing before it reaches the customer.