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FOLDING BOOM CRANE
LOAD MOMENT INDICATOR
The WANPU Load Moment Indicator consists of a central microprocessor unit,display, pressure transducers,length/angle sensor, and anti-two block switches.The fixed data regarding the crane, such as capacity charts, boom weights, centers of gravity and dimensions are stored in memory chips in the central processor unit. This data is the reference information used to calculate the operating conditions. Boom length and boom angle are registered by the length/angle sensor, mounted inside the cable reel which is mounted on the boom.
The boom length is measured by the cable reel cable which also serves as an electrical conductor for the anti two-block switches.The crane load is measured by pressure transducers attached to the piston and rod side of the hoist cylinders.The real value, resulting from the pressure measurement is compared with the reference data, stored in the central processor memory and evaluated in the microprocessor. When limits are reached, an overload warning signal is generated at the operator’s console.
Load charts can be programmed into the display.
Use automatic compensation method for the force sensor.
The display has a built-in processor, reducing the number of components to be installed in the crane cab.
Can expand to the "black box" function, according to the users’ needs can storage alarm record for a long time.
The main interface using graphic display, sound and light alarm, automatic control.
sensor for monitoring radius.
Instantaneous , height, radius and angular value.
Instant load vs. limit load comparison.
Special calibration by means of load diagram.
Audible and visual warning.
Anti-2-Block warning on screen
Adopted 7-10 inches LCD display.
You can contact us by email about your order details, or place order on line
█INSTALLATION AND COMMISSIONING
English User Manual(include all the details of each item) will be offered for installation and trouble shooting. Also free Remote Instant Technical assistance would be offered by ourengineers. Or we can send our engineers to assist you locally
█PACKING AND SHIPPING
Wooden case or carton, shipping method as customer's request or our suggestion.
One year frees repair for quality-warranty.Ano-lifetime free online after service.
How to choose products
Load Moment Indicator – LMI
For hydraulic cranes, the LMI reads its load value using a pair of pressure transducers, which read the cylinder pressures of the lift cylinders
Rated Capacity Indicator – RCI
On a Rated Capacity Indicator, the load weight value is calculated by reading the strain on the wire rope. This is done by using a load pin in a sheave, a running line tensiometer (linerider) or a dead-end load cell installed at the becket end. A digital load chart is also available to show load capacity.
Load Indicator – LI
This is the simplest form of load monitoring. Here, a strain gauge device is used to read the wire rope tension producing a load value. The load sensing device can be installed in line to the crane rigging or can be placed under hook.
What is crane load?
Each crane has a load chart that, in short, specifies the crane’s capabilities — detailing its features and how its lift capacity varies when considering distance and angle. … Before a crane is rented, transported, employed or purchased, the crane chart must be consulted.
What is a load moment indicator?
Load Moment (or Rated Capacity) Indicator means a system which aids the equipment operator by sensing (directly or indirectly) the overturning moment on the equipment, i.e., load multiplied by radius.
How does a load moment indicator work?
Using different sensing devices, the Load Moment Indicator monitors various crane functions and provides the operator with a continuous reading of the crane’s capacity. The readings continuously change as the crane moves through the motions needed to make the lift.
Add: No.33 Dalian Rd,Yichang, Free Trade Zone(Hubei) China