BOL Series – Industrial

Industrial Hydraulic Oil Coolers

Thermal Transfer Products offers a full line of standard catalog hydraulic oil coolers for all industrial machine hydraulics for system cooling.

Air to Oil Cooling

  • Up to +500 HP of heat removal from hydraulic oil
  • ­Round tube copper, brass or steel
  • Brazed aluminum plate & bar (P-BAR)
  • Extruded aluminum tube (T-BAR)
  • Aluminum/steel fin construction
  • All aluminum brazed

Water to Oil Cooling

  • Steel, copper, copper/nickel, or stainless steel construction
  • Brazed plate construction
  • Internal fins
  • Diameters up to 10 inches
  • Lengths up to 12 feet

Product Options

Thermal Transfer industrial hydraulic oil coolers are available with a host of options to meet the demands of your application.

  • Brass construction
  • Steel construction
  • Internal finned construction
  • Brazed plate construction
  • Internal bypass
  • Seawater service


Our hydraulic oil coolers are used worldwide in a broad range of industrial applications, including:

  • Hydraulic presses
  • Plastic injection molding
  • Lube oil coolers
  • Extrusion machinery
  • Gear boxes
  • Hydraulic power units
  • And more.

For application help and quoting, visit our Full TTP site or contact

Contact Us/Request a Quote


  • Fluid Power
RatingsMaximum Operating Pressure 250 PSI
Maximum Operating Temperature 300°F
MaterialsMounting 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
Fluid CompatibilityPetroleum/mineral oils
Oil/water emulsion
Water/ethylene glycol

View all Thermal Transfer Products Products