Yanmar Auxiliary Generators: Sizing for Reefers, Hotel Loads, and Dynamic Positioning Systems

Wildon Engineering provides expert solutions for sizing Yanmar auxiliary generators to support reefers, hotel loads, and dynamic positioning systems.

Power reliability is essential in demanding marine and offshore environments. Yanmar auxiliary generators provide stable, efficient power for reefers, hotel loads, and dynamic positioning systems. Correct sizing not only ensures safety and compliance but also supports uptime and profitability across the marine, oil & gas, industrial, and mining sectors.

Overview of Yanmar Auxiliary Generators Lineup

Yanmar is a global leader in auxiliary power solutions, offering a versatile portfolio of generators designed to meet diverse operational needs. The product range covers compact units for smaller vessels through to high-capacity models for offshore and industrial applications.

•  Compact high-speed sets (14–17 kWe) – Designed for smaller vessels requiring efficient and lightweight auxiliary power. These units provide a reliable solution where space is limited and operational demands are modest.

•  Mid-speed 6NY16LW range (180–400 kWe) – Ideal for medium-sized vessels, this series balances power, efficiency, and durability. It is widely used in applications where steady output and low emissions are essential.

•  Larger mid-speed 6AYL range (320–450 kWe) – These models are suitable for ships with higher auxiliary load requirements, offering robust performance for long-term reliability.

•  High-capacity 6EY18LW/ALW (400–800 kWe) and 6EY22 (600–1425 kWe) – Designed for demanding environments, these units are often selected for offshore operations, dynamic positioning systems, and large industrial vessels where uninterrupted power is mission-critical.

By offering a wide spectrum of capacities, Yanmar ensures that operators can select a generator precisely matched to their operational profile, reducing risks of under- or over-sizing.

Case Scenarios Across Industries

Auxiliary generator requirements vary significantly across sectors. Below are three common applications where correct generator sizing ensures optimal performance and compliance.

•  Marine – Reefers in the marine industry demand continuous and stable power to maintain cargo temperature, especially during compressor start-up surges. These auxiliary generators from Yanmar deliver the surge capacity and efficiency required to manage both peak and steady loads. Mid-speed and larger models ensure reliable performance for vessels carrying perishable goods or providing passenger accommodation, protecting cargo integrity and crew comfort.

•  Oil & Gas – Dynamic positioning (DP) systems in offshore oil & gas operations require reliable power to maintain vessel stability during drilling and subsea activities. Their variable and mission-critical load profiles demand high-capacity solutions, where even brief interruptions can impact safety and timelines. Yanmar auxiliary generators, including the 6EY18 and 6EY22 series, provide the durability, fuel efficiency, and IMO Tier II compliance needed for uncompromised offshore performance.

•  Industrial and Mining – Remote industrial and mining operations rely on auxiliary power for accommodation, ventilation, water treatment, and other essential hotel loads with fluctuating demand. Yanmar auxiliary generators deliver stable and efficient energy that minimises downtime and lowers maintenance costs. Mid-speed and high-capacity models are particularly valuable, offering durability and serviceability to sustain long-term productivity in challenging environments.

Wildon Engineering Trading as Japan Marine Engineering

Selecting the right auxiliary generator requires not only technical knowledge but also access to genuine parts and expert support. Wildon Engineering trading as Japan Marine Engineering provides comprehensive global procurement solutions for the marine, oil & gas, industrial, and mining sectors. As an authorised supplier of Yanmar auxiliary generators, we ensure that clients benefit from precision sizing, regulatory compliance, and long-term lifecycle value.

For operators seeking reliability, efficiency, and world-class support, we offer the expertise and procurement capability to deliver results. Contact us to outline your operational requirements and secure the right Yanmar auxiliary generator solution for your business.

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