HYDAC SB330 Accumulator | 20L 32L 50L | 330 Bar High Pressure | SB330-32A1/112

SB330 Series High-Pressure Bladder Accumulators (20L – 50L)

Product Overview:

The SB330 series is the global industry benchmark for energy storage, pressure pulsation dampening, and fail-safe protection in the advanced hydraulic systems of 2026. Rated for a maximum working pressure of $330 \text{ bar}$, these units deliver exceptional response speeds. This range highlights the high-capacity $20\text{L}, 32\text{L},$ and $50\text{L}$ models, equipped with 112/112A9 compound bladders optimized for durability—ideal for metallurgy, industrial presses, and large-scale power units.

Core Model Specifications:

• SB330-32A1/112-330A:

  • Volume: $32\text{L}$ Standard.

  • Bladder: Equipped with the 112 versatile NBR compound for excellent oil compatibility.

• SB330-20A1/112A9-330A:

  • Volume: $20\text{L}$.

  • Material: 112A9 (Reinforced Synthetic Rubber), engineered for high-frequency impacts and extended gas retention.

• SB330-50A1/112-330A:

  • Volume: $50\text{L}$ High-Capacity.

  • Application: Specifically designed for massive instantaneous power delivery in heavy-duty machinery.

Key Technical Advantages:

• $330 \text{ bar}$ Industrial Safety Shell: Forged from premium seamless alloy steel and compliant with 2026 international pressure vessel fatigue standards, ensuring maximum structural security under heavy-load pulsations.

• 112A9 Reinforced Bladder: Features ultra-low gas permeability and superior chemical resistance. Compared to standard options, it maintains stable pre-charge pressure even under high temperatures.

• Instantaneous Dynamic Response: The low-inertia bladder structure responds immediately to hydraulic shocks, protecting sensitive downstream valves and reducing noise.

• Modular A1 Interface: Standardized A1 threaded ports ensure $100\%$ physical interchangeability with modern global hydraulic systems.

Detailed Technical Specifications:

• Nominal Volumes: $20 \text{ L}, 32 \text{ L}, 50 \text{ L}$.

• Max Working Pressure ($P_{max}$): $330 \text{ bar}$ ($33 \text{ MPa}$).

• Bladder Compound Codes: 112 / 112A9 / 112A.

• Connection Style: Standard A1 Threaded Port.