Advance HC Marine Gearbox – Engineered for Power, Precision, and Performance at Sea

In marine propulsion systems, the gearbox is more than a component—it's the critical link between engine and propeller, influencing everything from speed control to fuel efficiency. Among the many options in the marine industry, the Advance HC Marine Gearbox series stands out for its durability, adaptability, and decades-long track record in commercial vessel performance. Whether you're operating a small fishing boat or a medium-to-high power vessel, the HC gearbox delivers reliable torque transmission, superior engineering, and peace of mind at sea.

Proven Performance Across the Marine Industry

With over 50 years of practical ship application, Advance HC gearboxes have proven their value across a wide spectrum of marine environments. Known for their broad power range—from 0.0044 to 1.48 kW/r·min⁻¹—these gearboxes offer a flexible transmission solution for both medium and high-powered marine engines.

From coastal trawlers to offshore fishery vessels, the HC series has earned the confidence of marine professionals by delivering consistent, rugged, and low-maintenance performance in real-world applications.

Flexible Configurations to Meet Your Needs

Advance HC Marine Gearboxes are available in multiple variants, including:

· HC Type – Standard application model with robust performance

· HCD Type – Designed for double input/output requirements

· HCT Type – High-performance variant suitable for more demanding torque

· HCW Type – Specialized for vessels with dual control stations or complex control logic

The HCT1200/1 model, for example, is a widely adopted solution that exemplifies the strength of the line. It is engineered using advanced manufacturing techniques and high-strength materials to ensure smooth operation even under challenging maritime conditions.

Material Excellence for Long-Term Reliability

Marine gearboxes are subjected to some of the harshest working conditions: saltwater corrosion, temperature variation, and high mechanical stress. The HC series is designed to withstand them all.

1. Forged Shaft and Coupling Parts (42CrMoA Alloy Steel)

These components undergo quenching and tempering to enhance toughness and strength. The result: a shaft system capable of maintaining stability under continuous torque loads.

2. Carburized and Quenched Gears (20CrMnMoH, 20CrMnTi, 17CrNiMo6)

The gear systems are heat-treated to achieve hard, wear-resistant surfaces while retaining a tough core, crucial for fatigue resistance and extended operational life under variable loads.

3. Wet Multi-Plate Hydraulic Clutch

The hydraulically controlled friction clutch ensures seamless engagement and power transfer. Built with HT200/HT250 gray cast iron, it offers superior shock absorption, which helps minimize wear and tear in long-haul operations.

4. Vibration-Damping Housing (Gray Cast Iron)

The gearbox housing is crafted from gray cast iron, known for its excellent vibration absorption and dimensional stability. This contributes to quieter operation and increased structural integrity over time.

Trusted by Shipbuilders, Captains, and Engineers

With a high market share in the fishing vessel sector, Advance HC Marine Gearboxes are a top choice for marine fleets seeking a combination of technical precision and field-proven durability. The availability of various gear ratios, sizes, and configurations means it can be tailored to meet a wide variety of vessel designs and engine outputs.

The Advance HC Marine Gearbox is more than a mechanical assembly—it is a high-performance solution built to exceed the expectations of marine professionals. With cutting-edge metallurgy, time-tested reliability, and a flexible design philosophy, it ensures every voyage is backed by the power of engineering excellence. For fishing vessels and beyond, this gearbox continues to power the marine world—one reliable transmission at a time.