Hydraulic Pressure Boosters & Accumulators
Hydraulic pressure solutions for demanding industrial applications
Milwaukee Cylinder offers hydraulic-pneumatic devices designed to support industrial applications that require higher hydraulic pressure, better fluid management, and efficient system operation.
Our product offering includes pressure boosters, air-oil tanks, and nitrogen-oil accumulators. You can incorporate these components into hydraulic systems to meet specific pressure, fluid storage, and operating requirements.
Whether you need intermittent high-pressure operation using an existing compressed air supply or supporting components for a hydraulic system, Milwaukee Cylinder offers solutions to meet your application needs.

Explore Our Hydraulic-Pneumatic Products
Hydraulic Pressure Boosters
Milwaukee Cylinder pressure boosters, also known as pressure intensifiers, convert lower-pressure air input into higher hydraulic pressure. They suit intermittent high-pressure applications where compressed air is available, and a complete hydraulic power unit may not be necessary.
- Model BA dual-pressure boosters
- Model BD single-pressure boosters
- Special high-pressure configurations by factory consultation
Air-Oil Tanks
Milwaukee Cylinder air-oil tanks provide hydraulic fluid for booster-driven systems while helping manage fluid displacement and trapped air.
- Supply replacement oil to a hydraulic circuit
- Provide hydraulic pressure for cylinder return
- Allow entrapped air to escape from the system
- Support integrated booster and tank configurations
Nitrogen-Oil Accumulators
Milwaukee Cylinder nitrogen-oil accumulators are designed to support hydraulic system operation and improve overall system efficiency. Customers can review available configurations, dimensions, and application information to determine whether an accumulator fits their hydraulic system.
Single Pressure vs. Dual-Pressure Hydraulic Boosters
Milwaukee Cylinder offers two standard pressure booster designs to accommodate different hydraulic operating requirements.
| Feature | Model BA | Model BD |
|---|---|---|
| Booster type | Dual-pressure | Single-pressure |
| Operation | Low-pressure approach; high-pressure work stroke | High pressure throughout work stroke |
| Rated input pressure | 250 psi | 250 psi |
| Standard rated output limit | 3,000 psi | 3,000 psi |
| Self-bleeding | Yes | No |
| Typical use | Clamping with low-pressure approach | High pressure throughout stroke |
How Does a Hydraulic Pressure Booster Work?
A hydraulic pressure booster increases available pressure by using a larger input piston area to produce higher hydraulic pressure through a smaller output area.
For example, a booster with a 16:1 pressure ratio can convert a 100 psi air supply into approximately 1,600 psi of hydraulic pressure.
This lets an application achieve higher hydraulic pressure without necessarily needing a separate motor-driven hydraulic power unit. However, pressure boosters do not increase the total power available. They are generally best suited to limited-duty applications requiring intermittent high pressure rather than continuous, high-speed cycling.
Common Applications for Hydraulic Pressure Boosters
- Industrial clamping: Apply higher holding force to fixtures and workpieces.
- High-pressure operations: Generate hydraulic pressure using an existing compressed air supply.
- Extended pressure holding: Maintain pressure in applications requiring longer holding periods.
- Space-constrained equipment: Use booster-driven hydraulic cylinders where larger pneumatic cylinders may be impractical.
Selecting the Right Booster or Accumulator
Choosing the appropriate hydraulic-pneumatic device depends on your system’s operating requirements. Important considerations include available air pressure, required hydraulic output pressure, fluid volume, cylinder displacement, duty cycle, and installation constraints.
Milwaukee Cylinder provides engineering data, product dimensions, and selection information to support product configuration.
Need help identifying the right hydraulic-pneumatic device? Contact Milwaukee Cylinder to discuss your application and available product options.