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Pressure Intensifiers vs Gear Pumps, Rotary Actuator Main Benefits, and more…

November 13, 2025

Pressure Intensifiers vs. Gear Pumps

  • Pressure intensifiers for targeted high pressure
  • Pumps for multiple components

Where Rotary Actuators Make a Difference

  • Main benefits of hydraulic rotary actuators
  • Common uses and applications

Choosing a Domin Servo Valve

  • S4 Pro: World’s smallest direct drive valve
  • S6 Pro: Our most popular model
  • S10 Pro: Efficient for high flow rates
  • S12 Pro: Expanding into higher power

Many hydraulic systems perform multiple functions, but not all require the same pressure. Imagine a machine with a dozen circuits but only one needs 5,000 psi…”

There are several ways to increase pressure in a hydraulic system. The most common is upgrading to a larger pump, but in some cases, a pressure intensifier is the better choice. Knowing when to use each method can make a big difference in time, cost, and efficiency.

Pressure intensifiers for targeted high pressure

Many hydraulic systems perform multiple functions, but not all require the same pressure. Imagine a machine with a dozen circuits but only one needs 5,000 psi. Instead of upgrading to a 5,000 psi-rated pump and replacing every component in your system to match that high pressure, you can simply add a pressure intensifier to the necessary circuit. With an intensifier, standard components can be used (typically 3,000 psi) while achieving high pressure only when and where it’s needed.

In car manufacturing, for example, pressure intensifiers are often used to help shape exhaust pipes. The main hydraulic pump provides about 80–90% of the pressure, while the intensifier delivers an extra boost, the “oomph” needed to bend the pipe into a fixed angle.

The main benefit here is that the HPU doesn’t need to be completely redesigned to achieve this outcome because pressure intensifiers are installed directly inline into your system, resulting in significant savings and time.

Pumps for high pressure in multiple components and simultaneous speed and force

A bigger, high-output pump is the preferred solution when your hydraulic system must deliver high pressure and high flow at the same time, continuously.

For example, agricultural applications such as cutting, clamping, or grabbing require high pressure and fast response. While a pressure intensifier can increase pressure, it does not supply the additional flow and may slow down the cycle time. In this case, upgrading the pump to meet your pressure and flow requirements would be the most efficient and cost-effective solution long-term.

The bottom line…

  • Use a pressure intensifier when only a specific part of your system needs high pressure.
  • Upgrade your pump when your entire system requires continuous high pressure and high flow.

Helical spline actuators are used across almost every industry. In mining, actuators position drill rig nozzles to create blast holes in walls and ceilings. In forestry, they rotate grapples to maneuver big pieces of lumber. In waste and recycling, actuators help empty and unload tippers.  

Main benefits

Hydraulic rotary actuators are an excellent choice for a range of applications due to three main benefits:

  • High torque, compact design: Their specially engineered splines and gears are manufactured with tight tolerances, allowing components to move in perfect unison and deliver high torque in a small footprint.
  • Low maintenance operation: All internal parts run in a fully sealed oil bath, providing continuous lubrication for minimal wear and a long service life.
  • Flexible rotation: Unlike traditional cylinders, actuators can rotate well beyond 360°, enabling motion ranges ideal for complex or space-limited applications.

Common uses

Here are just a few ways that actuators can be customized to your application:  

  • Change, rotate, and hold tools or workpieces
  • Pivot and level work platforms
  • Operate and control heavy valves
  • Turn cabins, drums, or test rigs
  • Flip, lift, and move pallets and products
  • Open, close, and lock gates and hatches
  • Position nozzles

Domin offers a new class of hydraulic servo valves, combining the precision of two-stage designs with the robustness, efficiency, and safety of direct drive valves. Their product range includes four models depending on your application:

S4 Pro: World’s smallest direct drive valve

The S4 Pro is the smallest direct drive valve.

domin blue hydraulic servo valve s4 pro series
  • Flow rate up to 5 gpm (18 lpm)
  • Ideal where space and weight are critical; useful for robotic applications

S6 Pro: Power density and reliability for most applications (most popular)

The S6 Pro delivers high power density, low leakage, and proven reliability in a compact package with an excellent power-to-size ratio.

domin blue hydraulic servo valve S6 pro series
  • Flow rate from 1.6 to 15.9 gpm (6 to 60 lpm)
  • The benchmark choice for most applications

S10 Pro: Efficiency for high flow rates

The S10 Pro is an efficient high-flow valve that offers fast response, low power usage, and is best for applications between 26 to 66 gpm.

domin blue hydraulic servo valve s10 pro series
  • Flow rate from 13 to 66 gpm (50 to 250 lpm)
  • Ideal for pressures and power generation

S12 Pro: Expanding into higher power (Coming Soon)

The S12 Pro extends Domin’s capabilities into larger applications, building on the S10’s strengths but for even higher flow rates.

hydraulic servo valve domin blue hydraulic servo valve s12 pro series
  • Flow rate from 66 to 174 gpm (250 to 660 lpm)
  • Ideal for larger presses, turbines, high-power rigs

With lead time zero, we’ll ship your Domin valves out from our Ohio Warehouse same day or next business day.*

*As part of lead time zero, we aim to have the popular models in stock. We’re building up inventory levels and receive new stock regularly.  


Learn more about our pressure intensifier solutions