The Thermal Transfer Products MA Series is a rugged, high-performance air-cooled hydraulic oil cooler built for demanding mobile equipment cooling applications. It uses TTP’s proven brazed aluminum plate-and-bar core, engineered with an aggressive turbulator that produces ultra-high heat transfer in a compact, vibration-tolerant package suited to off-highway and mobile machinery.
You can select from a broad line of standard units as a core only — for integration into an existing cooling package — or as a complete fan pack. Fan-optioned units come with 12- or 24-volt DC or brushless DC axial fans. The brushless motor option delivers extended service life, a minimal electrical load at over 82% efficiency, custom fan-speed control, and lower ambient noise — important where battery draw and cab noise matter.
For temperature control, add the MAGHEX programmable fan controller and sensor: an easy-to-install, low-cost alternative to complex control systems that cycles the fan to hold target oil temperature. TTP’s XSelector® sizing program — available online and as a mobile app — helps optimize model selection for your flow rate, heat load, and available space.
The Thermal Transfer Products OCA Series is a high-performance, forced-air oil cooler engineered for high heat rejection, high-viscosity fluids, and rough operating environments. It’s built around TTP’s patented T-BAR™ solid extruded-tube core — where other TTP lines offer T-BAR™ as an option, the OCA is designed around it, giving the series exceptional durability under high shock loads and high pressure spikes while reducing pressure drop with thick, viscous oils.
Its rugged steel construction is more efficient and lighter in weight than competitor models, and the series is available in a wide range of sizes for both mobile and industrial applications. Because it cools with ambient air, the OCA provides ample cooling in locations where cooling water is costly, restricted, or simply unavailable — avoiding water and sewer costs and the corrosion and scaling of water-cooled systems.
The OCA is designed for integration into hydraulic power units and mobile machinery cooling circuits where air-cooling is preferred, with a maximum operating pressure of 250 PSI and a maximum operating temperature of 350°F. TTP’s XSelector® sizing program — available online and as a mobile app — helps select the right model for your flow, heat load, and fluid viscosity.
The Thermal Transfer Products BOL/BOLR Series is an industrial air-cooled hydraulic oil cooler built on a brazed aluminum bar-and-plate core. It delivers outstanding heat dissipation for extreme heat loads in a rugged, lightweight, and compact package, making it well suited to hydraulic power units, hydraulic presses and industrial machinery, and gearbox and lube-oil cooling circuits where high thermal loads run continuously.
Every unit uses TTP’s proven brazed aluminum core engineered with an aggressive turbulator that produces ultra-high heat transfer per envelope size. Coolers are available with AC or hydraulic fan motors, and TTP’s exclusive T-BAR™ extruded-tube cores are offered for high-viscosity oils and highly fouling fluids to reduce pressure drop.
Two internal bypass options — pressure bypass or temperature/pressure bypass — protect the core and improve cold-start performance. Because the bypass is internal, it eliminates extra external piping, which lowers installed cost and helps the cooler come out of bypass faster on cold starts. A low-noise option runs the motor at reduced speed for sound-sensitive installations.
The series covers a heat-rejection range from 5 HP (4 kW) to 630 HP (465 kW), with a maximum operating pressure of 250 PSI and maximum operating temperature of 350°F. TTP’s XSelector® sizing program — available online and as an Apple and Android app — helps optimize cooler selection for performance and value.