Excellence in Marine Systems
PRECISION MARINE ENGINEERING
Delivering high-performance hydraulic systems for the world's most demanding vessels.
Tailored for Your Fleet
CUSTOM PROPULSION SOLUTIONS
Engineered propellers and steering systems tailored to your vessel specifications.
Industry Leadership
MARITIME EXCELLENCE
Three decades of innovation in marine hydraulic technology and manufacturing.
Innovation Beyond Limits
BEYOND HYDRAULICS
We are the Specialists in Marine Propulsion and Hydraulic Innovation.
About Us
Precision Marine Engineering Since Decades
OM SAI Engineering Works stands at the forefront of marine hydraulic systems manufacturing, delivering precision-engineered solutions for commercial fishing vessels worldwide.
Our expertise spans from custom marine propellers to complete hydraulic power systems, each meticulously designed to withstand the demanding conditions of maritime operations.
With state-of-the-art manufacturing facilities and a commitment to excellence, we engineer reliability into every component, ensuring your fleet operates at peak performance.
Why Choose OSEW
Engineering Excellence Delivered
30 years of precision manufacturing since 1995, delivering unmatched performance and reliability to 30,000+ vessels worldwide.
Precision Engineering
Industry-leading accuracy with tolerances to 0.01mm. Our advanced CNC machining and quality control ensure every component meets exact specifications.
Custom Solutions
Every vessel is unique. We engineer custom hydraulic systems tailored to your specific requirements, operational demands, and vessel specifications.
Proven Performance
Over 30,000 vessels worldwide trust our systems. Our certified manufacturing ensures consistent quality and reliability in the harshest conditions.
What We Engineer
Complete Hydraulic Solutions
Marine Propellers
Precision-engineered stainless steel propellers
Marine Propellers
Precision-engineered stainless steel propellers from 34"-75". Custom-designed for optimal thrust, fuel efficiency, and vessel control in diverse fishing operations.
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Hydraulic Power Blocks
High-performance hydraulic power systems
Hydraulic Power Blocks
High-performance hydraulic power systems engineered for maximum efficiency, featuring integrated manifolds and advanced control systems for reliable vessel operations.
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Power Steering System
Advanced hydraulic steering solutions
Power Steering System
Advanced hydraulic power steering system engineered for smooth, responsive vessel control and reduced crew operational strain.
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Hydraulic Lifting Winches
Heavy-duty deck machinery for fishing operations
Hydraulic Lifting Winches
Heavy-duty hydraulic lifting winches engineered for continuous-duty operations in purse seine and trawling applications with maximum reliability and extended service life.
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Hydraulic Steering System
Advanced steering wheel systems for vessel control
Hydraulic Steering System
Advanced hydraulic steering wheel systems engineered for intuitive vessel control, smooth operation, and durability in demanding maritime conditions.
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Stern Tube Systems
Precision bearing systems for propeller shafts
Stern Tube Systems
High-quality stern tube bearing systems engineered for durability, minimal maintenance, and reliable performance in harsh marine environments.
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Water-Lubricated Bearings
Stern gear system components
Bearings
Precision water-lubricated bearings engineered for stern gear systems from 25-250mm diameter with superior corrosion and abrasion resistance.
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Marine Brackets
Propeller support systems
Brackets
P-type and A-type brackets from manganese bronze with hydrofoil design for maximum efficiency and integrated water-lubricated bearings.
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Propeller Shafts
Premium marine shafts
Shafts
Premium marine propeller shafts from 316L specifically designed marine grade alloy with precision CNC machining up to 10 meters length.
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PSS Shaft Seal
World-leading mechanical seal
PSS Shaft Seal
World's #1 marine mechanical seal offering 100% water-tight protection with zero maintenance, easy retrofit for shafts 20-150mm diameter.
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Stern Gear Accessories
Premium marine accessories
Accessories
Complete range of stern gear accessories and replacement parts engineered to the highest marine standards for optimal performance and longevity.
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Hydraulic Winch
Heavy-duty deck machinery
Hydraulic Winch
Compact and powerful hydraulic winch engineered for deck hauling, cargo recovery, and general maritime lifting operations with high line pull capacity.
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Rudder Systems
Directional vessel control
Rudders
Custom fabricated steel and cast bronze rudder systems engineered for precise directional control in commercial and high-speed vessels.
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State-of-the-Art Facility
Certified Manufacturing Standards
Our Manufacturing Excellence
Engineered for Reliability
Every system is designed and manufactured for the unpredictable demands of commercial fishing operations with uncompromising quality standards.
Marine-grade materials and stainless steel components
Certified manufacturing processes
Rigorous pressure testing and trial runs
Dynamic balancing of rotating components
Tailored solutions for vessel specifications
Global technical support and spare parts availability
Our Strengths
Why Marine Operators Choose OSEW
Custom Engineering
Designs tailored to engine horsepower, RPM, gearbox ratio, vessel displacement, and operational conditions.
In-House Manufacturing
Complete design, fabrication, machining, and testing with full quality control under one roof.
Proven Performance
Decades of field-tested solutions trusted by commercial fishing fleets across global waters.
Ready to Upgrade Your Fleet?
Let our marine engineering experts create a customized solution tailored to your vessel's specifications and operational requirements.