The Sany 21949471 crane boom is a critical load-bearing component designed for high-precision lifting operations.
Key Functions
Dynamic Load Distribution: Transmits hydraulic power to regulate lifting torque and balance loads up to 23 tons (e.g., SPK23500 model), ensuring stability during hoisting.
Multi-Angle Flexibility: Supports 0–75° luffing angles and 400° rotation, enabling access to confined spaces (e.g., SPK50002 model with 16.8m telescopic reach).
Design Highlights
High-Strength Material: Forged from alloy steel (tensile strength ≥1200 MPa) with carburizing surface hardening, resistant to hydraulic pressures >33 MPa.
Intelligent Monitoring: Integrated sensors and CAN bus systems provide real-time overload alerts and automatic shutdowns to prevent structural failures.
Modular Maintenance: Quick-disconnect joints and standardized bearings allow rapid field servicing; extendable outriggers (max span 6.6m) enhance accessibility.
Hydraulic Compatibility: Optimized for hydraulic systems with 55–80 L/min flow rates, ideal for port logistics and emergency rescue scenarios.
Product Deatials
| Part Name | Rocker Arm Vo Lvo Penta | Part Number | 21949471 |
| Model | / | Application | SANY Port Machine |
| Package Size | / | Weight | 13.3kg |
| MOQ | 1 PC | Brand Name | CBP |
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