Box cooler

WDJ BOX COOLER

Among industrial cooling solutions, the box cooler stands out for its exceptional simplicity—and our WDJ Box Cooler embodies this with a streamlined structure consisting of only five core components: tube bundle, tube sheet, gaskets, water box, and bolts. A key design advantage lies in its tube configuration: each tube functions as an independent small cooler, essentially operating as a network of mini-coolers working in parallel to deliver reliable cooling performance.

Ideal Applications for Vessels

Our Box Cooler is tailor-made for small-to-medium sized vessels, covering a wide range of maritime craft such as:

• Utility vessels: Tugboats, barges, fishing boats, ferries, and icebreakers

• Specialized vessels: Dredgers, offshore supply vessels, and anchor handling tug supply (AHTS) vessels

• Cargo & transport vessels: Cargo freighters, tankers, bulk carriers, and refrigerated carriers (reefers)

It fulfills diverse temperature-regulation needs across maritime operations, from cooling critical propulsion and auxiliary systems (main engines, auxiliary engines, bow thrusters) to supporting on-board comfort and functionality (air conditioning, hydraulic systems).

Core Benefits of Our Box Cooler

1. Low maintenance costs: Minimal componentry reduces long-term upkeep expenses.

2. Extended service life & high availability: Durable design ensures consistent operation with minimal downtime.

3. Space-saving efficiency: Compact structure fits easily in vessels with limited on-board space.

4. Reduced fouling sensitivity: Resists debris buildup, maintaining performance even in harsh water conditions.

5. Versatile for harsh environments: Reliable operation in sandy, icy, shallow, or silt-polluted water.

6. Energy efficiency: Lowers electrical consumption compared to complex cooling systems.

7. Eco-friendly (green) design: Aligns with sustainable maritime practices, reducing environmental impact.

Expanded Application Scope

1. Marine Industry

Beyond its traditional use on offshore supply vessels, AHTS, tugs, dredgers, and icebreakers, our Box Cooler is now widely adopted for:

• Tankers, container ships, and bulk carriers

• Fishing boats and small-to-medium cargo vessels

It reliably cools main engines, auxiliary engines, bow thrusters, hydraulic systems, and on-board air conditioning—supporting smooth daily operations.

2. Hydro Power Plants

For hydro power applications, we offer two anti-fouling solutions to maintain cooling efficiency:

• Standard solution: Impressed  Current Anti-Fouling (ICAF) system. This generates Cu+ ions to create a continuous protective environment, preventing bio-fouling accumulation.  Suitable for both new-build projects and retrofits.

• Optional add-on: Ultrasonic anti-fouling, available upon request.

Replacement, Refurbishment & Comprehensive Services

Drop-In Replacements for Leading Brands

We provide direct drop-in replacements for box coolers from top manufacturers, including Bloksma, NRF, Klima, and Weka. Our replacements match the original units in:

• Mounting dimensions (no modifications required for installation)

• Thermal performance (ensuring consistent cooling output)

• Customizable pipe connection sizes (tailored to your specific needs)

Full-Service Support

Our services extend beyond product supply to ensure long-term performance:

• Cooler refurbishment (restoring aging units to optimal  condition)

• After-sales support and on-site installation

• On-site troubleshooting and maintenance

• Expertise in resolving fouling issues and enhancing thermal  efficiency 

With a track record of supporting shipyards in installing box coolers for hundreds of vessels, and assisting ship operators with performance optimization and repairs - you can rely on our expertise for all box cooler needs.

Fast Delivery & Competitive Solutions

We prioritize timely delivery without compromising quality. We work closely with you to develop competitive, tailored solutions that meet your project timelines - ensuring minimal delays for new builds or retrofits.

We are your Trusted Partner for Reliable Box Coolers