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MH Series - Hydrapak Oil Conditioning System

MH Series

All in one compact design

The Hydrapak is a pre-engineered, compact, lightweight, highly efficient hydraulic oil conditioning system. The Hydrapak incorporates all of the necessary components of a properly designed hydraulic system into one pre-assembled unit.


The original Hydraulic Cooler

MH Series Hydrapak are designed to be all-in-one hydraulic drive conditioning system. The packages are designed to be small, lightweight, quiet and affordable, allowing operators maximal flexibility in operating use. These systems can be used in conjunction with: 

  • Dry bulk blower applications 
  • Bulk feed trucks 
  • Food grade applications (food oils, corn syrups, etc) 
  • Chemical applications (detergents, acids, alkaline) 
  • Gas applications (liquid nitrogen, liquid oxygen) 
  • Work utility truck applications (lube trucks or hydraulic hand tools) 

Pre-engineered, highly efficient, hydraulic oil cooling package that includes an oil reservoir, cooler, return line filter and system relief valve.

Your Benefits at a Glance

  • Heavy duty stainless steel mainframe for durability and long life
  • 2, 4, or 4.4 gallon oil reservoir with integral diffuser which eliminates foaming
  • Highly efficient, heavy duty oil cooler for maximum reliability
  • Factory set hydraulic motor driven fan for optimum performance and maximum cooling efficiency
  • Anodized aluminum manifold block designed to protect the system against over pressurization
  • Manifold block incorporates the relief valve, flow control valve, filter bypass, and micronic filter
  • Warranty - 12 months from installation or 18 months from ship date


  • Light weight - Carry more liquid in the tank not more oil in the hydraulic system. No need for large oil tanks with expensive hydraulic oil
  • Larger payload, lower oil costs 
  • Installation time - Fast assembly and connection of hydraulic systems which reduces installation costs 
  • Compact design allows you to place your system in a location that makes sense to you. 
  • Flow Control Valves for uniform flow and maximum air cooling efficiency 
  • Filter bypass valve to protect the filter from over pressurization 
  • Micronic filter to clean and extend the use of hydraulic oil and components 



All parts are NOT created equal.

All genuine parts are factory engineered to the exact specifications of our machines, this means you get maximum performance from all Gardner Denver products.

Service and Warranty

In the competitive market we work in, the cost to a business for a vehicle being off-the-road is high. Down time equals money lost. We understand this. That's why Gardner Denver's nationwide service network and highly skilled and certified technicians are available 24/7 to meet your repair needs. We offer support with extensive stocked spare parts to get you and your product back in operation as soon as possible.

What do we offer?

  • Globally stocked genuine spare parts
  • Service and maintenance kits
  • Detailed commissioning
  • Complete check and overhaul of your compressed air system
  • Reliable, professional maintenance and service contracts
  • Personalized maintenance and service contracts
  • Service training of customers and dealers
  • Professional information and advice

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