Language: Chinese line English


WANPU was founded in 2010. Specializing in the production of industrial control instrumentation systems,as well as providing solutions to ensure the safety and reliability of cranes.

WANPU has strong R&D capabilities,has10 years of experience in the crane security,and can provide various cranes safety systems with different needs. The R&D team leads cutting-edge technology in the crane industry.

WANPU fulfill the clients’ demand with continuous innovation,reliable quality and excellent service.

By providing with stable, accurate, durable products, helping customers to get their best profits. We are standing on the field of the world, looking forward to your cooperation.

Application Areas

Mobile Crane

Hydraulic Crane
Telescopic Crane
Lttice Boom Crane
Tower Cranes
Pipe Layers
Side Loaders
Truck Mounted Crane
Reach Stacker
Harbour Crane
Junkyard Crane
Overhead Cranes
Aenal Work Platform


Load Momnet Indicatoy LMI
Load Indicatoy LI
Rated Capacity Indicatoy RCI
Wind Speed Indicator

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.


Contact: LU

Phone: 15926995665/18972582893

Tel: 0717-6746086


Add: No.33 Dalian Rd,Yichang, Free Trade Zone(Hubei) China

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