The Hirschmann HC4900 Load Moment Indicator (LMI) is the central intelligence unit for modern crane safety, specifically engineered for XCMG mobile and crawler cranes. This computer system monitors real-time load, boom angle, and extension to prevent dangerous overload conditions. As a vital operational aid, it ensures that your lifting operations remain within the manufacturer’s rated load charts, significantly reducing the risk of structural failure or tipping during critical site work.
Comprehensive Compatibility and Technical Precision
Our HC4900 series computers are calibrated for high-precision data processing, ensuring seamless communication with pressure transducers and angle sensors. This unit serves as the direct replacement for XCMG material numbers 803500997 and 803501153, offering “plug-and-play” reliability for field repairs and system upgrades across various XCMG platforms.
The HC4900 system features a robust software architecture designed for rapid error diagnosis and precise calibration. The high-visibility display provides operators with continuous feedback on crane configuration and load status, ensuring maximum site reliability even in the most demanding engineering environments.
Key System Capabilities
Overload Protection: Automatic cut-off or warning signals when approaching 100% of rated capacity.
Anti-Two-Block Monitoring: Prevents the hook block from colliding with the boom tip to avoid cable snaps.
Real-time Data Integration: Simultaneously tracks load moment, working radius, boom length, and actual weight.
Professional Supplier with Decade-Long Engineering Expertise
As a specialized provider of XCMG and Hirschmann parts, we possess over ten years of experience in technical support and global parts distribution. Our deep understanding of crane electronics and control systems ensures that you receive genuine components and professional guidance for system installation, troubleshooting, and calibration.
Required Inquiry Data for System Configuration
To ensure the correct software version and specific configuration for your crane model, please provide the following details:
Machine Nameplate (or VIN) – MANDATORY. Part Material Number (e.g., 803500997 or 803501153). Purchase Quantity. Full Shipping Profile (Country, Address, Zip Code).
