High-performance Keel Cooling Solutions and Shaft Seal Systems
Heat Exchange Systems Product Line
Whether you’re designing a new vessel or re-powering an existing vessel, our cooling experts are a great resource. With decades of experience, they will help you design and custom build a cooling system to fit the design of your vessel, the power requirements of your engine and additional power sources.
One of our cooling experts will meet with you to discuss your engine and auxiliary power sources, then will custom design a system to meet your specifications and cooling requirements. Whether your vessel’s design demands a hull-mounted type cooler or an in-hull unit, we have the latest technology in heat exchangers available to meet your needs.
DuraCooler SuprStak (Patent pending) with TurboTunnel Design
Revolutionary keel cooler design more than doubles heat transfer in half the hull space. The best answer for the marine industry’s ever increasing cooling requirements. It is a double-stacked, completely redesigned DuraCooler engineered to “jet” turbulent seawater in a tunnel-like configuration between its upper and lower tube assemblies.
DuraCooler Keel Cooler
Latest updated version of the one-piece, hull-mounted DuraCooler greatly improves cooling efficiency over a square head design. Engineered diverter “scoops” have been added to the original design along the bottom width of the tube assembly that “flush” stagnant areas between the tubes with seawater, greatly enhancing heat transfer.
Demountable Keel Cooler
Our 90/10 cupronickel spiral tubing is resistant to salt water corrosion and sea growth, and gives superior heat transfer. Its demountable, modular design is available in 4, 6, 8, 12, and 24 tube units that can be combined to cool multiple circuits.
Duramax BoxCooler
Shaft Seals Product Line
Duramax Marine has a long history of engineering systems for the commercial marine industry, as well as recreational boaters. We deliver a full line of stuffing boxes and stern castings for sealing stern tubes, bulkheads, and rudder ports. They all have one thing in common – Duramax commitment to that highest quality standards in the industry.
Our Johnson Heavy-Duty Stuffing Box is well known around the world and it is not uncommon for it to last the life of the vessel. Duramax shaft seal systems are products you can trust, supported by a team of experts to solve problems you might face.
Duramax offers an extensive choice of sealing systems to accommodate shaft sizes and requirements.
DryMax Shaft Seal
Johnson Heavy-Duty Air Seal Stuffing Box
Duramax Ultra-X High Performance Compression Packing
