Description
MA-8 MA-Series Mobile Air-Cooled Oil Cooler – Thermal Transfer
The Thermal Transfer MA-8 is a rugged brazed-aluminum oil cooler designed for compact core-only installations using equipment airflow or a separately supplied fan. Its bar-and-plate core uses an aggressive internal turbulator to provide high heat transfer in a compact, lightweight package while minimizing oil-side pressure drop.
The air-side fin design helps reduce fouling and static pressure for reliable long-term performance in mobile and off-highway environments. Welded aluminum ports and manifolds improve structural integrity, and connection choices include SAE, NPT, or BSPP depending on the selected configuration.
MA-8 Specifications
| Model | MA-8 |
|---|---|
| Heat Exchanger Type | Air-cooled brazed aluminum bar-and-plate oil cooler |
| Maximum Operating Pressure | 250 psi (17 bar) |
| Maximum Operating Temperature | 300°F (150°C) |
| Maximum Series Flow | Up to 160 GPM (350 L/min), subject to model sizing |
| Core-Only Shipping Weight | 10 lb |
Materials and Fluid Compatibility
- Core: Aluminum
- Connections: Aluminum
- Core mounting bracket: Aluminum
- Bypass components: Aluminum and steel, when selected
- Compatible fluids: Petroleum/mineral oils, oil/water emulsion, and water/ethylene glycol
Available Controls
The optional MAGHEX 2 controller combines a temperature sensor and fan controller in one sealed housing. It supports 12 or 24 VDC systems, controls up to 40 amps, offers ten temperature set points from 100°F to 200°F, includes manual override and low-voltage shutdown, and mounts in an SAE #8 port or cavity.
Frequently Asked Questions
MA-8 MA-Series Mobile Air-Cooled Oil Cooler
▶️ Question: What applications are a good fit for the Thermal Transfer MA-8?
Answer: The MA-8 is designed for mobile and industrial oil-cooling applications using a brazed-aluminum bar-and-plate core. It can be applied with petroleum or mineral oils, oil/water emulsions, and water/ethylene glycol when the cooler is properly sized for heat load, flow, viscosity, air temperature, and available airflow.
▶️ Question: How do I determine whether the MA-8 is correctly sized?
Answer: Determine the system heat load, entering temperature difference, oil flow, viscosity, and available airflow, then use the Thermal Transfer performance curves or XSelector sizing program. The published curves are based on 50 SSU oil, 1000 SFPM air velocity, and a 100°F entering temperature difference, so correction factors may be required.
▶️ Question: What are the pressure, temperature, and fluid limits for the MA-8?
Answer: The MA/MAR Series is rated for a maximum operating pressure of 250 psi and a maximum operating temperature of 300°F. The series supports flow rates up to 160 GPM, but the acceptable flow for this specific model must be confirmed from the performance curve and allowable pressure drop.
▶️ Question: Does the MA-8 include a fan?
Answer: This model is listed as a core-only configuration in the MA/MAR product line. It must receive adequate equipment airflow or be paired with a separately engineered fan or air-moving system. Confirm face velocity and static pressure when sizing.
▶️ Question: What connection options are available for the MA-8?
Answer: Standard SAE ports are available, with NPT and BSPP connection options offered for the MA/MAR Series. Select the port style that matches the hydraulic system and verify the exact size for the chosen model before ordering.
