Load Indicator System

Scale and Control Inc. offers the Rayco-Wylie i4000 Load Indicator system, which calculates load through a load sensing device installed in line to the crane rigging or under the hook. This system allows for load/angle/length/radius configuration rather than a digital load chart programmed, which some prefer so that operators manually read the load chart to inform decisions. The i4000 Display can also monitor A2B (Anti-Two-Block) and windspeed sensors.

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Rayco-Wylie I4000 Load Indicator System

  • Diagnostic menu and continuous error detection and recording
  • Built-in audible and visual alarms indicating two-block, load limit conditions and range limit conditions
  • Easy calibration via keypad, no additional programming hardware necessary
  • Quick and easy installation
  • Display size 6.15” x 3.56” x 2.36”
  • 3.5” LCD color screen
  • USB file transfers
  • Selectable units
  • IP67 Rating
  • Upgradable to the i4500 LMI Series
​​* Due to specific configurations needed depending on application, contact us for pricing and info on a system to best suit your needs
Load Indicator Sensors
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33R6000 & 33R4000 Series Cable Reel
​R147 Wireless A2B Switch
33Y Series 3 Sheave Line Rider / Tensiometer
​R180 Wireless Windspeed Sensor
Underhook Load Cells
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.

Users can also choose an LALR configuration. Load, Angle, Length, Radius configurations do not have the digital load chart programmed into the display. Many old school fleet managers and owners like this configuration as it forces the operator to manually read the load chart to ensure what they can safely pick.

OSHA mandates as a minimum that a load indicator be installed on new cranes over 3-ton capacity. Moreover, you see an LMI or RCI coming as standard on new factory cranes.

Which system should I choose?
Click here to learn more about other system types