Language: Chinese line English


Yi Change WanpPu Technology Co.,Ltd is a professional enterprise with many years experience since 2010. Engaged in design and produce crane torque load moment limiter ( truck crane, crawler crane, tower crane, bridge crane); tower crane anti-collision system; loader and excavator weighing system; and related crane spare parts including touch screen, sensors, height limit switch, anemometer etc. totally 8 series and more than 40 kinds of products. Products have been exported to more than 20 different countries, including Uruguay, Argentina, Poland, Italy, Russia, Pakistan, and many Southeast countries. Furthermore, our R&D department can provide customized solutions based on our clients' requests.

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

Scan the qr codeClose
the qr code