Load Moment Indicators (LMI) & crane safety monitoring systems
Yichang Jingcheng Electronics designs and builds load moment indicators (LMI), safety monitoring systems and the sensors that feed them, for ten classes of lifting equipment.
We focus on crane safety. Every lift comes down safe.
Machine classes
All-terrain & truck crane
Continuously changing length and angle; radius solved live.
- Length
- Angle
- Load
Crawler crane
Lattice boom with many rigging modes; charts switch by jib and ballast.
- Tilt
- Height
- Rigging
Marine & portal crane
Luffing slewed together; coastal protection and salt exposure.
- Radius
- Wind
- Coastal
Truck-mounted loader
Outrigger state sets the rated load and must be an input.
- Outriggers
- Angle
- Pressure
Knuckle boom crane
Multi-joint geometry solved; compact cab calls for a small terminal.
- Joint angles
- Compact
Aerial work platform
Personnel at height — tilt and outriggers are the core inputs.
- Tilt
- Limits
Pipelayer
Tandem picks in the field; wireless links suit remote work.
- Tandem
- Wireless
Gantry crane
Two-axis trolley positioning with wind alarms from an anemometer.
- Position
- Wind
Tower crane
Height and radius combine into capacity; multi-crane anti-collision available.
- Height
- Radius
Derrick & mast crane
Fixed geometry, wind-sensitive — focus on load and wind.
- Load
- Wind
Products
Control systems & interfaces
Terminals, control meters, collector boxes and all-in-one units. Click any sheet to enlarge it.
Sensors & accessories
Length, angle, load cell, pressure, encoder, wind, beacon and brackets, each on its own data sheet.
Published specifications
Display size, system accuracy, operating temperature and protection class, by family.
In the field
Next step
Tell us the crane class, a photo of the load chart and what you need monitored. The technical team returns a configuration list and quotation, usually within one or two working days.