Sun Hydraulics Counterbalance Valve | CBEALHN CBCALHN | CBCALHN-EBA/T Load Holding

Sun Hydraulics CBEA & CBCA Series Counterbalance Valves

Product Overview: Sun Hydraulics Counterbalance Valves are essential safety components designed to control overrunning loads and lock actuators securely in position. This series provides zero-leakage load holding and extremely smooth motion control via pilot-assisted operation. This category features premier models: CBEALHN-X4H, CBCALHN-X4G, and the integrated manifold assembly CBCALHN-EBA/T.

Utilizing Sun’s patented “Floating Style” design, these cartridges prevent internal spool binding caused by excessive installation torque or manifold machining tolerances. They are the top choice for mobile cranes, aerial work platforms, excavator boom circuits, and any hydraulic system requiring gravity-load control.

Key Technical Advantages:

• Elite Load Locking: Precision-ground poppet seating ensures zero drift of the actuator in the hold position, maximizing operational safety.

• Smooth Pilot Response: Available in various pilot ratios (e.g., 3:1 or 4.5:1) to eliminate system chatter and ensure pulse-free, controlled descent.

• Integrated Solutions: Models like CBCALHN-EBA/T combine the cartridge with a manifold block, simplifying integration and reducing potential leak points.

• Series Precision Matrix:

  • CBCA Series: 3:1 Pilot Ratio, offering a perfect balance between stability and responsiveness for standard tasks.

  • CBEA Series: 4.5:1 Pilot Ratio, requiring lower pilot pressure to open, ideal for applications needing higher sensitivity.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Counterbalance Cartridges.

• Featured Model Matrix: CBEALHN, CBEALHN-X4H, CBCALHN, CBCALHN-X4G, CBCALHN-EBA/T.

• Core Performance Specs:

  • Max Operating Pressure: Rated for heavy-duty operations up to 350 Bar (5,000 PSI).

  • Adjustment Ranges: H (1000–4000 PSI) range; set-point is typically 1.3x the maximum load pressure.

  • Flow Capacity: Covers 60 L/min to 120 L/min depending on specific frame sizes.

  • Adjustment Type: L (Standard Leak-proof screw adjustment).

  • Cavity Standards: Industry-standard T-11A or T-2A screw-in cavities.