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Advance HC400 Heavy Duty Marine Gearbox 3.25:1 Reduction
Advance HC400 Heavy Duty Marine Gearbox HC400-325 functions as a 3.25:1 torque-intensive reduction system and marine propulsion transmission system for coastal freighter maritime applications.
- Range Data: Absolute 3.25:1 Reduction Ratio.
- High 810HP Precision Span: 604kW Power Capacity.
- Compliance: CCS ZC Approved Standards.
- Capacity: Hydraulic Multi-disc Records.
- Connection: SAE 0 Housing Position.
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Description
Advance HC400 3.25:1 Gearbox
Optimizing power delivery for mid-range maritime applications, the Advance HC400 is the definitive mechanical solution for mariners requiring a reliable physical bridge to propulsion efficiency. As a premier Advance marine gearbox, this unit utilizes optimized gear geometry to deliver superior hydrodynamic performance for displacement hulls. The hardware architecture focuses on torque management, ensuring this Advance power system provides a stable 3.25:1 reduction for balanced speed and towing power in professional environments.
Technology-driven mechanical performance provides total protection through an integrated pressure regulation system that maintains optimal oil flow to all internal components. This Advance marine transmission features a non-corrosive exterior finish to facilitate durability in damp bilge and engine room environments. Reliability is reinforced by the case-hardened gears and robust output flange designed for heavy-duty maritime service. This unit is the ideal choice for mariners prioritizing professional maritime power and consistent transmission performance.
Key Technical Specifications
- 3.25:1 dedicated reduction gear ratio.
- HC400 series heavy duty construction.
- Mechanical hydraulic shifting control logic.
- High strength alloy internal gearing.
- Optimized for high torque loads.
- Compact footprint engine room installation.
- Industrial grade drivetrain bearing system.
Advance HC400 Heavy Duty Marine Transmission - 3.25:1 Ratio
| Brand | Advance |
| Model / SKU | HC400-325 |
| Country of Origin | China |
| US Support / Warranty | 1-Year Limited Warranty |
| Reduction Ratio | 3.25:1 |
| Transmission Capacity | 0.45 HP / RPM (0.331 kW / RPM) |
| Max Input Power | 810 HP (604 kW) @ 1800 RPM |
| Max Input Speed | 1800 RPM |
| Bell Housing Standard | SAE 0 / SAE 1 |
| Clutch Type | Hydraulic Multi-disc |
| Max Propeller Thrust | 18,434 LBF (82,000 N) |
| Center Distance | 10.39" (264 mm) |
| Oil Capacity | 6.07 Gallons (23 Liters) |
| Dry Weight | 1,807 lbs (820 kg) |
| Dimensions (LxWxH) | 33.2" x 37.4" x 35.0" |
| Classification / Certs | CCS / ZC Approved |
| Primary Application | Coastal Freighters & Passenger Ferries |







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