HYDAC SB330 Accumulator | 4L 6L 10L 20L 32L | SB330-10A1/112A9 | 330 Bar Bladder

SB330 Series High-Pressure Bladder Accumulators (4L – 32L)

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 high-performance bladder accumulators deliver exceptional response speeds. This product range includes core capacities from the compact $4\text{L}$ up to the mainstream $32\text{L}$ models, all equipped with the 112A9 premium compound bladder—ideal for machine tools, injection molding, and heavy-duty power units.

Core Model Specifications:

• SB330-10A1/112A9-330A:

  • Volume: $10\text{L}$ Standard.

  • Feature: Balances compact footprint with energy efficiency, widely used in medium hydraulic stations.

• SB330-20A1/112A9-330A:

  • Volume: $20\text{L}$.

  • Feature: Designed for heavy-load equipment, providing robust instantaneous flow compensation.

• Full Capacity Spectrum:

  • Includes $4\text{L}, 6\text{L}, 10\text{L}, 20\text{L}, 32\text{L}$ to meet various volumetric compensation requirements.

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 maximum safety under continuous heavy-load pulsations.

• 112A9 Reinforced Bladder: Formulated with specialized synthetic rubber for ultra-low gas permeability. Compared to standard NBR, the 112A9 compound maintains a stable elasticity coefficient under high temperatures or frequency impacts.

• Instantaneous Response: The low-inertia bladder structure instantly neutralizes high-frequency pump ripples ($>10\text{Hz}$), protecting sensitive downstream valves and significantly reducing circuit noise.

• Modular A1 Interface: Standardized A1 threaded fluid ports ensure $100\%$ physical interchangeability with mainstream global hydraulic accessories, simplifying on-site maintenance.

• Industrial Durability: High-quality anti-corrosion exterior coating protects the shell in harsh environments featuring moisture, dust, or mild chemical spray.

Detailed Technical Specifications:

• Nominal Volumes: $4, 6, 10, 20, 32 \text{ Liters}$.

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

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

• Compatible Mediums: Mineral oils, synthetic fluids, and non-corrosive liquids.

• Connection Style: Standard A1 Threaded Port.