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Product Introduction
Integrated Marine Propulsion System
1. Product Overview
This full-range marine propulsion portfolio covers complete underwater power solutions for all commercial vessels, integrating fixed pitch propellers (FPP), controllable pitch propellers (CPP, full system sets), matched shafting packages, complete rudder systems, multi-type thrusters, and professional hydrodynamic energy-saving devices.
The two product catalogs share identical core product lines, technical standards, manufacturing processes and global classification certification systems. Both focus on high-efficiency, low-vibration propeller design, full supporting shaft/rudder/thruster matching, and IMO EEXI/CII compliant energy-saving retrofits for newbuild & in-service ships. All products adopt bronze & stainless steel marine alloy raw materials, pass strict NDT, balance and hydrodynamic testing, and provide one-stop design, manufacturing, installation and full-lifecycle after-sales service for shipyards and global shipping operators.
The full system is applicable to container ships, bulk carriers, oil & chemical tankers, LNG vessels, ro-pax ferries, tugboats, fishing vessels, inland crafts and offshore working ships, delivering unified hydrodynamic optimization and green low-carbon propulsion performance.
2. Full Product Series
2.1 Fixed Pitch Propeller (FPP)
Core Specifications
Bronze propeller: Dia 0.6–9m, single weight ≤80 tons, 3–7 blades, Cu3/Cu4 alloy
Stainless steel propeller: Dia 0.6–8m, single weight ≤50 tons, 3–5 blades, CF3 stainless steel
Max single FPP production capacity: 11m diameter, 100 tons single casting piece
Product Advantages
High tensile & yield strength, outstanding seawater corrosion resistance; precise 5-axis CNC machining, ultra-smooth polished blade surface, effectively suppress cavitation and vibration. Custom skew & pitch design matches vessel wake field, boosting propulsion efficiency by 5%–8%. Complete dimensional inspection, material test and dynamic balance reports for all class society approval.
2.2 Controllable Pitch Propeller (CPP Complete System)
Max transfer power up to 17,000kW, 4/5-blade bronze hub & blades
Full package supply: adjustable blades, hydraulic control hub, remote monitoring unit, couplings, bearings and matched shafting
Flexible forward/reverse speed adjustment without reversing main engine, ideal for ferries, tugs and multi-operation vessels
All structural parts manufactured via integrated casting & CNC machining, fully class certified
2.3 Complete Shafting System
Full matching components for all propeller types:
Tail shaft, intermediate shaft, rubber/high polymer stern tube bearings, oil/water-lubricated shaft seals, flexible couplings, shaft brackets, stuffing boxes and stern tubes.
Shaft max size: Length 16m, max OD 500mm, single weight 16 tons, machining precision ±0.01mm
High polymer water-lubricated bearings: low wear, zero oil pollution, long service life for inland & coastal vessels
All shaft forgings undergo quenching & temper, ultrasonic flaw detection before delivery.
2.4 Full Rudder System
Balanced rudder blades, rudder stocks, pintles, rudder carriers, watertight sealing units and shaft brackets.
All forged rudder stock & pintle with 100% UT flaw detection
Self-aligning roller rudder carriers for heavy-load large vessels
Custom rudder outline matched with propeller wake to improve maneuverability and reduce resistance
2.5 Full Range Thruster Products
Complete azimuth & tunnel thruster lineup for maneuvering and dynamic positioning:
Well-mounted / deck-mounted / retractable azimuth thrusters
Contra-rotating azimuth & tunnel thrusters
Fixed pitch / controllable pitch tunnel thrusters
Drive options: Diesel, electric & hydraulic drive, L/Z installation layout, power range 60kW–4000kW, matched nozzle duct design for enhanced bollard thrust.
2.6 Hydrodynamic Energy-Saving Devices (ESDs, IMO EEXI/CII Certified)
Two core energy-saving attachments for newbuild and vessel retrofits:
Propeller Boss Cap Fins (HVAF)
Eliminate hub vortex, reduce shaft torque by 2–3%, lift thrust 1–2%, cut fuel consumption 2–5%. Simple installation, direct replacement of original boss cap.
Pre-Shrouded Pre-Swirl Vanes (PSV)
Optimize propeller inflow, reduce rotational slip loss, overall vessel efficiency improved 3–8%.
Combined ESD + high-efficiency propeller retrofits deliver total fuel saving 7–11%, directly lower CII carbon intensity rating and meet mandatory EEXI compliance requirements.
3. Core Production & Technical Strength
Advanced Digital Design & Simulation
Adopt CFD flow field simulation, FEM finite element strength analysis, virtual casting & CNC machining simulation before production; model tank test verification for all customized propeller schemes to guarantee hydrodynamic performance.
Large-Scale Intelligent Manufacturing
12,500㎡ dedicated casting workshop with 125-ton medium-frequency melting furnace; full CNC machining production lines, robotic blade grinding & laser 3D inspection, ultra-precise blade edge forming to minimize noise and cavitation.
Full Global Classification Approval
All products certified by CCS, ABS, DNV, BV, KR, RINA, IRS etc., comply with ISO9001, ISO14001 quality & environmental management standards.
Green Vessel Compliance Solution
Full one-stop EEXI/CII upgrade service: propeller optimization design, ESD matching, torsional vibration calculation, tank test, production, on-site installation and sea trial verification. Mass retrofit cases for container, bulk & tanker fleets, proven annual fuel cost savings up to millions USD per vessel.
4. Core Competitive Advantages
Full one-stop propulsion supply
Unified supplier for propeller, shaft, rudder, thruster and energy-saving devices, simplifying shipyard procurement and project coordination, consistent system matching performance.
Significant energy-saving & emission reduction
High-efficiency skew propeller + ESD combined package cuts fuel consumption 4.4%–11.3%, reduces CO₂ emissions, helps shipowners meet IMO carbon intensity regulations and avoid operation restrictions.
Low vibration & low noise optimized design
Multi-blade skew layout and smooth blade surface suppress flow separation and cavitation, greatly lowering hull vibration and underwater radiated noise.
Long service life & low maintenance
High-performance marine copper/stainless alloy with excellent anti-corrosion, anti-erosion capability; standardized spare parts supply and global on-site repair service.
Full lifecycle technical service
Pre-project hydrodynamic consultation, drawing approval, factory inspection; on-site fitting, trimming, damage repair, dock inspection and long-term spare parts support for all vessel fleets.
5. Wide Application Vessel Types
Container ships, bulk carriers, oil & chemical tankers, LNG carriers, ro-ro passenger ferries, tugboats, fishing vessels, inland sightseeing & cargo ships, offshore supply vessels, yachts and floating platforms.