product Image
HELM PUMP
Model
-
Series
Hydraulic Steering INBOARD
Data
-
About Supplier
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SEAFIRST

A manufacturer of hydraulic steering equipment for small-sized vessels

Tel
055-338-1640
Manufacturer
SEAFIRST
Brand
-
SKU
126288
Product Name
HELM PUMP
Model No.
-
Size
-
Weight
-
Product Details

If Steering wheel is rotated in clock wise, oil is pump out from the port ( right port from the front view) into the port of cylinder ( starboard side ).

This cause the cylinder rod move to forward, which move the boat rudder to right side ( starboard) Oil displaced from the opposite end of the cylinder flows back to the helm pump. For steering in the opposite direction, simply turn the helm pump the other way.

When no course corrections are required, the inbuilt lock valve holds the rudder stationary.





HELM PUMP


- SS 304 SHAFT

- Adjustable Displacement from 48cc to 85cc for HP4590T

- Fixed Displacement for NSH helm pump

- Lock Valve Inbuilt

- Mounting Hardware and steering wheel mounting hardware supplied as standard

- Interconnecting ports for dual stations of steering




APPLICATION GUIDE

Complete
Model
System Basic Recommend
Components
Wheel turnsRecommendSuitable
Steering Wheel
Size
torqueengine power
CylinderHelm PumpLock to lockkgf.mHP
MI 34NIOC-4020NSH 0225.53475Dia 350mm
MI 48NIOC-4021NSH 0256.74875
MI 61NIOC-4022NSH 0307.161110
MI 75NIOC-5024NSH 0377.175110Dia 395mm
MI 96NIOC-5025NSH 0447.796140
MI 117NIOC-5026NSH 0449.3117180



Complete
Model
System Basic Recommend
Components
Wheel turnsRecommendSuitable
Steering Wheel
Size
torqueengine power
CylinderHelm PumpLock to lockkgf.mHP
MI 118HIOC-5024HP 4590T3.1~5.5118180Dia 600mm
MI 151HIOC-5025HP 4590T4.0~7.0151250
MI 185HIOC-5026HP 4590T4.8~8.6185250
MI 270HIOC-6325HP 4590T7.1~12.5270250
MI 329HIOC-6326HP 4590T8.6~15.3329350



SEAFIRST
A manufacturer of hydraulic steering equipment for small-sized vessels
Since its establishment in 2004, SEAFIRST has been specializing In hydraulic steering in Korea. Design the safe voyage SEAFIRST manufactures products while having the priority goal of designing safe hydraulic steering system for a journey of customers. We put our effort to make the best quality of hydraulic steering in the world. We handle all the different hydraulic steering that can be applied to the engines Such as outboard engine, inboard engine, and stern drive engine of vessels. Hydraulic Steering Inboard As 2006 was the year of innovation, we have changed our company name to SEAFIRST and began manufacturing hydraulic steering inboard. We developed helm pump and brass inboard cylinder that will be applied to leisure boats in which the development of helm pump became the driving force that led the growth of the company. In addition to leisure boat market, we have entered the fishing craft market with our hydraulic power steering inboard where we broke into Asia, Middle East, and South American markets. Hydraulic Steering Outboard Since 2008, the hydraulic steering for an outboard engine that reinforces the flaws of cable steering began to get attention as a high-power outboard engine became popular. SEAFIRST focused on improving the quality of the helm pump and finally developed a new helm pump and a cylinder for outboard (SOC type) that are competitive in a global market. By launching the next generation Maxteering in 2016, we are satisfying diverse customer demands. Hydraulic Steering Stern Drive A market demand for a stern drive that possesses both speed and power began to increase since 2010, which led to an increased demand for a hydraulic steering for stern drive that covers the shortcoming of a cable steering. We have developed the stern drive cylinder (power assist/non power assist) based on the technology of helm pump, thus becoming a sole OEM supplier for company H and having more than 95% shares in the stern drive market. SEAFIRST pursues the highest quality and the happiest customers. As a hydraulic steering market leader with more than 95% domestic market share, we are preparing for the Fourth Industrial Revolution and the Smart Factory and striving to modernize the boat industry and become the world No.1.