The High Speed Marine Diesel Engine is an onboard power unit designed to deliver mechanical energy directly to a vessel's shaft drive line or to drive an electrical generator set.
Key Specifications
|
Duty |
Model |
HP |
kW |
RPM |
|
P1 |
WP4C82-15 |
82 |
60 |
1500 |
|
P1 |
WP4C95-18 |
95 |
70 |
1800 |
|
Duty |
Model |
HP |
kW |
RPM |
|
P1 |
WP4C102-21 |
102 |
75 |
2100 |
|
P1 |
WP4C120-18 |
120 |
88 |
1800 |
|
Length |
1058 mm |
|
Width |
820 mm |
|
Height |
1061 mm |
|
Dry Weight |
600 kg |
Vessel System Compatibility
Propeller Drive Integration: Direct coupling configurations designed for both Fixed-Pitch Propeller (FPP) and Controllable-Pitch Propeller (CPP) systems.
Shaft Line Layout: Flexible elastomeric couplings absorb torsional vibration across the operating RPM range, protecting gear teeth and shaft bearings from wear.
Auxiliary Power Take-Off: Front-end stub shaft and multi-groove pulley drive auxiliary hydraulic pumps for deck cranes, winches, and net haulers.
Cooling & Fuel Systems
Raw Water Pump: Gear-driven bronze impeller pump equipped with replaceable sacrificial zinc anodes to resist marine biofouling and silt abrasion.
Heat Exchanger: Shell-and-tube Cupronickel (Cu-Ni 90/10) bundle with removable end-caps.
High-Pressure Fuel Lines: SOLAS-compliant double-walled injection piping with integrated optical leak-detection alarm system.
Fuel Filtration: Dual-stage 5-micron fuel-water separators filter out particulate contaminants and free water from lower-grade marine diesel.
Thermal Insulation: Jacket-water-cooled exhaust manifolds lower surface heat radiation, maintaining engine room ambient temperatures below 45°C.
OEM & Customization
|
Customization Item |
Available Options |
|
Engine Power |
60–88 kW (82–120 HP) or customized ratings |
|
Engine Speed |
1500 RPM, 1800 RPM, 2100 RPM |
|
Cooling Configuration |
Heat exchanger cooled or customer-specified arrangement |
|
Fuel System |
Standard marine fuel system or customized filtration configuration |
|
Electrical System |
12V or 24V starting system |
|
Control System |
Mechanical control, remote control, CAN communication options |
|
Instrument Panel |
Standard gauges or digital monitoring display |
|
Flywheel & Housing |
SAE flywheel housing and flywheel options |
|
Exhaust System |
Wet exhaust or dry exhaust configuration |
|
Air Intake |
Standard washable filter or heavy-duty marine filter |
|
Surface Finish |
Standard industrial coating or customized color |
|
Nameplate & Branding |
OEM logo, model identification, customized labels |
Customization & OEM Capabilities
Output Calibration: Factory power tuning options from 60 kW to 88 kW at continuous operating speeds of 1500, 1800, or 2100 RPM.
Flywheel Housing Options: Custom-machined SAE 1, SAE 2, and SAE 3 flywheel housings to match customer-specified gearboxes.
Instrumentation Options: Choice of analog IP65 mechanical gauge panels or SAE J1939 CAN-bus digital displays for integrated bridge readouts.
Air Filtration Options: Choice of standard washable stainless-steel mesh filters or dual-stage heavy-duty dry element air cleaners for sandy or dusty waterways.
Private Labeling & Packaging: Custom engraved aluminum nameplates, cast logo flywheel covers, customer-specified paint finishes, and seaworthy plywood crate packaging.
Manufacturing Capabilities
Cylinder blocks are bored and faced on CNC horizontal machining centers, maintaining ±0.02 mm dimensional tolerances.
Semi-automated assembly line specialized exclusively for 4-cylinder marine propulsion engine configurations.
Established marine classification inspection protocols (e.g., CCS, BV) supplying commercial shipyards across 30+ countries.
Certifications
|
CCS |
China Classification Society certification for marine applications. |
|
ISO 9001 |
Quality Management System. |
|
CE |
Compliance with applicable European directives (when required). |
|
ISO 14001 |
Environmental Management System. |
|
ISO 45001 |
Occupational Health and Safety Management System. |
Emissions & Compliance
Emission Certification: Calibrated to meet IMO Tier II exhaust emission standards under ISO 8178 E3 test cycles.
Thermal Protection: Shielded turbocharger housings and flame-retardant wiring looms conforming to marine fire safety codes.
Fuel Adaptability: Fuel injection timing is optimized for continuous operation on Marine Gas Oil (MGO) and DMA/DMZ-grade fuels.
FAQ
Q: Does this engine hold Type Approval certification from a classification society?
A: Units for classed vessels can be supplied with CCS or BV Type Approval documentation upon request. Standard commercial units are manufactured under the same classification society inspection protocols but are not issued per-unit certificates unless specifically requested.
Q: What is the recommended interval before the first major overhaul (TBO)?
A: Under normal marine duty cycles, the first top overhaul is recommended at approximately 8,000-10,000 operating hours, with major overhaul typically scheduled around 20,000 hours depending on fuel quality and duty cycle.
Q: Which vessel types is the 60-88 kW output range best suited for?
A: This power range is commonly matched to fishing vessels, small tugboats, passenger launches, and workboats under 25 meters requiring either direct shaft propulsion or auxiliary generator drive.
Q: What gearbox reduction ratios are compatible with the standard SAE flange?
A: Standard SAE 1, 2, and 3 flywheel housings accommodate common ZF and Advance reduction ratios ranging from approximately 2:1 to 4.5:1. The exact ratio is confirmed based on the customer's propeller and hull specifications.
Q: Can the engine be supplied ready-matched to a specific gearbox brand?
A: Yes, the engine can be factory-paired and shipped as a complete propulsion package with ZF, Advance, or other specified reduction gearboxes.
