HYDAC SB330 Accumulator | SB330-4A1/112A9 | SB330-6A1 | SB330-10A1 | 330 Bar Bladder

SB330 Series High-Pressure Bladder Accumulators (4L / 6L / 10L)

Product Overview:

The SB330 series is the industry benchmark for pressure pulsation dampening, energy storage, and fail-safe protection in the advanced hydraulic systems of 2026. Designed as a high-pressure bladder accumulator, it maintains exceptional response sensitivity even at an extreme $330 \text{ bar}$ rating. This range includes $4\text{L}, 6\text{L},$ and $10\text{L}$ models, equipped with the 112A9 compound bladder optimized for specialized media and temperature ranges—ideal for machine tools, injection molding, and heavy power units.

Core Model Specifications:

• SB330-4A1/112A9-330A:

  • Volume: $4\text{L}$ Compact.

  • Feature: Perfect for small hydraulic stations with limited installation space.

• SB330-6A1/112A9-330A:

  • Volume: $6\text{L}$.

  • Feature: A balanced medium-capacity solution widely used in automated production lines.

• SB330-10A1/112A9-330A:

  • Volume: $10\text{L}$ Standard.

  • Bladder Material (112A9): Formulated with premium synthetic rubber for ultra-low gas permeability and superior chemical compatibility, ensuring long-term stability under $330 \text{ bar}$ loads.

Key Technical Advantages:

• $330 \text{ bar}$ Peak Pressure Integrity: Shells are forged from premium seamless alloy steel and comply with 2026 international pressure vessel fatigue standards, ensuring structural security under extreme conditions.

• 112A9 Reinforced Bladder: Compared to standard compounds, 112A9 offers a wider operating temperature range and enhanced fatigue resistance, significantly reducing nitrogen replenishment frequency.

• Instantaneous Response: The low-inertia bladder structure instantly absorbs hydraulic ripples, reducing circuit noise and protecting sensitive downstream valves and controllers.

• Modular A1 Interface: Standardized threaded port design ensures $100\%$ physical interchangeability with modern 2026 industrial hydraulic stations.

• Industrial Durability: High-quality exterior coating provides excellent protection in harsh, dusty, or humid industrial environments.

Detailed Technical Specifications:

• Nominal Volumes: $4 \text{ L}, 6 \text{ L}, 10 \text{ L}$.

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

• Bladder Compound Code: 112A9 (Premium Synthetic Rubber).

• Shell Material: High-strength Carbon Steel.

• Connection Type: Standard A1 Threaded Port.