Product Overview
The SUN HYDRAULICS JNDK-MH03CDW-CB3H-CB3H-A / CBCA-LHN is a factory-assembled counterbalance valve assembly engineered for precise load-holding and motion control in hydraulic circuits. Manufactured by Sun Hydraulics, a global leader in high-performance screw-in cartridge valve technology, this assembly combines a JNDK-MH03CDW-CB3H-CB3H-A manifold body with a CBCA-LHN counterbalance cartridge. The CBCA-LHN is a pilot-assisted, load-reactive counterbalance valve that maintains a controlled, stable lowering of overrunning loads while preventing uncontrolled descent in the event of a hose or circuit failure. As a pressure control valve, it modulates the pressure required to open the load-holding poppet in proportion to the pilot signal, delivering smooth, chatter-free operation across the full flow range. The assembly is designed for direct integration into Sun Hydraulics standard cavity configurations, making it an ideal drop-in solution for demanding industrial and mobile hydraulic systems requiring reliable load control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Counterbalance Valve Assembly) |
| Model Designation | JNDK-MH03CDW-CB3H-CB3H-A / CBCA-LHN |
| Valve Function | Pilot-assisted, load-reactive counterbalance / load-holding |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar / 5,000 psi rated) |
| Mounting & Connection | Sun Hydraulics standard cartridge cavity / ISO interface manifold |
| Adjustment Style | Screw-adjustable pressure setting with locknut |
| Seal Material | Nitrile (Buna-N) / Viton options per configuration |
Engineering Features & Advantages
- Precision Load Control: The CBCA-LHN cartridge provides pilot-assisted opening that is directly proportional to the applied pilot pressure, ensuring smooth, controlled descent of overrunning loads without chatter or instability.
- Fail-Safe Load Holding: In the event of a hydraulic line rupture or pressure loss, the valve automatically closes to lock the load in position, protecting personnel and equipment from uncontrolled movement.
- Chatter-Free Operation: Advanced poppet and spring design minimizes oscillation and vibration across the full flow and pressure range, extending component life and improving system stability.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and precision-machined sealing surfaces for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Sun Hydraulics OEM standards, allowing drop-in replacement without manifold modification.
Typical Industrial Applications
This counterbalance valve assembly is widely deployed in heavy industrial and mobile hydraulic systems where reliable load holding and controlled motion are critical. Typical applications include plastic injection molding machines, metallurgical presses, construction and marine hydraulics (boom, outrigger, and winch circuits), CNC machine tools, aerial work platforms,
PRODUCT IMAGES
SUN HYDRAULICS JNDK-MH03CDW-CB3H-CB3H-A / CBCA-LHN Counterbalance Valve Assembly
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SUN JNDK-MH03CDW-CB3H-CB3H-A / CBCA LHN Solenoid Directional Valve. This US-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
