Industrial Hydraulics
It’s Not Just About Power—It’s About Power Density
It’s Not Just About Power—It’s About Power Density
In the world of hydraulic machinery, "power" is the ultimate goal. But power is only half the story. The real measure of a great hydrostatic drive system is power density — the ability to generate the most output from the smallest, lightest, and most efficient package possible.
For decades, one technology has stood as the benchmark for achieving this goal: the bent-axis axial piston motor. And the Rexroth A2FM is its most recognized form.
Why the "Bend" is Better
At first glance, the A2FM’s angled shape is distinctive. This isn’t just for looks; it’s the key to its performance. This "bent-axis" design allows for a very direct and efficient conversion of hydraulic pressure into rotating mechanical force.
Unlike other designs, it minimizes internal losses and extracts the maximum amount of work from every drop of fluid. The result?
- More Power in a Tighter Spot: For a given displacement, a bent-axis motor is smaller and lighter than its counterparts. For a mobile machine designer, this means more room for other components, a lower overall vehicle weight, and greater agility.
- Serious Fuel Savings: The A2FM’s high total efficiency means less energy is wasted as heat. In a wheel loader or an excavator, this translates directly into lower fuel consumption, shift after shift. For a stationary industrial system, it means a lower electricity bill.
- The Torque to Get Started: This robust design provides incredible breakaway torque, allowing your machine to start moving a heavy load smoothly and without hesitation.
A Foundation of Reliability
The A2FM is more than just a high-performer; it’s a globally trusted component that has proven itself for decades in the toughest applications on earth. From the grueling duty cycles of construction and forestry to the continuous operation of industrial fan drives, engineers choose the A2FM when reliability is not optional. It’s the engine that powers the world’s hardest-working machines.
When you’re designing your next hydrostatic drive, don’t just ask how much power you need. Ask how efficiently and compactly you can deliver it. The answer is the Rexroth A2FM.
