Features :
* Load Monitoring: Continuous measurement of load weight during lifting operations.
* Boom length Monitoring: Tracking the position and configuration of the crane's boom.
* Radius Monitoring: Measurement of the distance between the load and the crane's center of rotation.
* Safety Limit Enforcement: Automatic restriction of crane movements to prevent overloading.
* Real-time Alerts: Instant visual and audible warnings to the operator in case of approaching or exceeding safe limits.
* User-Friendly Interface: Intuitive interface for ease of use by crane operators.
* Emergency Stop Mechanism: Immediate halting of crane operations in emergency situations.
* Calibration Features: Ensures accurate load measurements and system calculations.
| Item Name |
Inclinometer0 |
| Working principle |
Digital sensing |
| Accuracy |
0.1 |
| Input Voltage |
DC24V |
| Working Current |
20-40mA |
| Output Mode |
RS232 / RS485 / TTL |
| Temp Sensor |
-40 to 85ºC |
| IP Rating |
67 |
Main Display Unit:
The main display unit of an LMI system provides real-time data on load weight, boom position, and distance. If it senses potential risks, it alerts the operator through visual signals and sound, ensuring safe and precise crane operations.
Height/Azimuth/Slewing Limitor:
Height limiter: prevents possible operational errors when the hook is lifted or lowered, and prevents the hook from rising beyond the limit and colliding with the boom head structure.
Slewing limiter: prevents excessive rotation in the same direction, thereby breaking the main cable at the slewing position.
Azimuth limiter: limits the movement range of the load trolley on the crane arm.
Load sensor:
The load sensor measures load induced strain using strain gauges, converting it to an electrical signal. Integrated into the LMI system, it calculateds load moments, ensuring real-time monitoring and safety.
Anemometer:
Real-time monitoring of wind speed changes. When the wind speed exceeds the safety threshold, it can promptly issue an alarm to remind operators to take corresponding measures.
Full-set LMI for Tower Crane:
1. 10 inch display with control box (pre-programed load chart) *1 pc / (5.6 and 7 inch optional)
2. Height/Azimuth/Slewing Limiter *1 set
3. Pin Type Load sensor *1 pc
4. Anemometer *1 pc
5. user amnual *1pc
6. USB downloader (for new customer) *2pcs
** Support customize language, startup screen, logo on display frame (only for 7 and 10 inch display)
** 3-color warning light is optional.
Application :
The Load Moment Indicator (LMI) system in crawler cranes finds major applications in a variety of industries where heavy lifting is required. Some of the major applications include:
* Construction: Crawler cranes equipped with LMI systems are commonly used in construction projects for tasks such as lifting heavy materials like steel beams, concrete panels, and precast elements. They are also used for erecting structural steelwork, placing heavy machinery, and assembling large components.
* Infrastructure Development: LMI-equipped crawler cranes play a crucial role in infrastructure development projects, including the construction of bridges, highways, tunnels, and dams. These cranes are used to lift and position heavy elements such as bridge girders, tunnel segments, and dam components.
* Infrastructure Development: LMI-equipped crawler cranes play a crucial role in infrastructure development projects, including the construction of bridges, highways, tunnels, and dams. These cranes are used to lift and position heavy elements such as bridge girders, tunnel segments, and dam components.
* Power Generation: Crawler cranes equipped with LMI systems are utilized in the power generation industry for tasks such as erecting wind turbines, installing power plant equipment, and maintaining infrastructure at power generation facilities, including nuclear, thermal, and renewable energy plants.
* Shipbuilding and Ports: Shipbuilding yards and ports utilize crawler cranes with LMI systems for lifting heavy ship components, containers, and cargo. These cranes play a critical role in loading and unloading operations, as well as in the construction and repair of ships and maritime infrastructure.
* Mining and Extraction: In the mining and extraction industry, crawler cranes equipped with LMI systems are used for tasks such as lifting heavy equipment, excavating machinery, and materials handling in mining operations, quarries, and mineral processing facilities.
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