BOL Series

BOL Series


Hydraulic Oil Cooling

Cooling Medium



Industrial / Mobile


Air Cooled / Brazed Aluminum

The rugged, lightweight and compact BOL Series provides outstanding heat dissipation for extreme heat loads.  Available with AC or hydraulic fan motors, all feature proven brazed aluminum P-BAR plate and bar core technology engineered with an aggressive turbulator that produces ultra-high heat transfer.  Available with two bypass relief options — a factory installed pressure bypass (P-BAR core) or an internal temperature controlled bypass (T-BAR core).

Consult catalog for additional sizes and technical information.


3D Model Coming Soon.

Our 3D Product Configurator will allow you to build up the cooler with specific options that are required for your application, view what you have created in 3D, then download the model directly into your format to complete your modeling project.

3D Product Configurator

  • Bar and Plate Brazed Aluminum Core
  • Provides the best heat transfer per given envelope size while minimizing pressure drop
  • Air-side fin design minimizes fouling and static pressure ensuring long-term, reliable performance
  • Welded fittings/ports and manifolds ensure structural integrity
  • Standard SAE ports – NPT & BSPP available
  • Customized units are available to meet your OE specific performance requirements
  • T-BAR core optional for high viscosity oils or other highly fouling fluids.
  • Low noise
  • T-BAR core
  • Serviceable internal pressure and thermal/pressure bypass
  • Internal temperature controlled bypass
  • All catalog product is available with short lead-times
  • Expert application engineers are available to select and size the right product for your application
  • Custom designs are available
  • Maximum Operating Pressure 250 PSI
  • Maximum Operating Temperature 300°F
  • Mounting Feet – Steel
  • Standard Core – Brazed Aluminum Bar and Plate
  • Tanks – 5052 Aluminum
  • Nose Bar & Little Bar – 3003-H Aluminum
  • Air Fin, Plate, Turbulator & End Plate – 3003-O Aluminum
  • Fanguard – Steel
  • Connectors – Aluminum
  • Fan – Aluminum Hub, Plastic Blades
  • Shroud – Steel
  • Motor – TEFC & IEC
  • Petroleum/mineral oils
  • Oil/water emulsion
  • Water/ethylene glycol