The MH Series Hydrapak from Gardner Denver is the original hydraulic cooling system developed in 1983 as a smarter alternative to large, heavy, and inefficient reservoir-based designs. As the pioneer of integrated hydraulic oil cooling, Gardner Denver evolved the Hydrapak into the MH Series to deliver greater cooling capacity, reduced weight, and compact integration for modern transport applications.
Designed to keep hydraulic circuits operating below recommended maximum temperatures, even in high ambient conditions.
Compared to traditional reservoir systems, the MH Series weighs less than one-quarter as much while maintaining strength, rigidity, and long-term reliability.
1300 - 4500
2 - 60
0 - 30
The first hydraulic cooling system of its kind, developed in 1983 and continuously refined for transport applications.
Significant weight and space savings improve payload capacity and simplify truck layouts.
Keeps hydraulic systems within recommended operating temperatures, even under heavy load and high ambient heat.
Includes reservoir, cooler, return-line filtration, and relief protection in one pre-engineered package.
Heavy-duty construction ensures long service life in demanding transport environments.
Reduced oil volume lowers carbon footprint and minimizes the impact of potential oil spills.
The MH Series Hydrapak is used across a wide range of hydraulic-driven transport and industrial applications, including:
Model | Pressure | Reservoir Size | Flow Rate | Dry Weight |
up to PSIG | BAR | Gallons | Liters | up to GPM | L/Min | LBS | KG | |
MH1 | 3000 | 207 | 2 | 7.5 | 20 | 76 | 49 | 22 |
MH3 | 3500* | 241 | 4 | 15 | 40 | 151 | 75 | 34 |
MH5 | up to 4500 | 310 | 4.4 | 16.6 | 60 | 227 | 94 | 43 |
The MH Series Hydrapak incorporates:
This integrated approach reduces installation complexity while maximizing system reliability.
All MH Series Hydrapak replacement parts are factory-engineered to exact specifications, ensuring proper fit, performance, and long service life across demanding transport environments.
Downtime costs money. Gardner Denver supports the MH Series Hydrapak through a nationwide network of factory-trained distributors and certified technicians available 24/7.
From installation through lifecycle service, Gardner Denver is committed to keeping hydraulic systems operating reliably.
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