WMJ application for calculating the counterweight for any operator cranes. Designed for anyone who works with operator cranes of any complexity.

Allows you to quickly and easily calculate the required load for the operator's crane.

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The operator crane is a special crane for lifting a cameraman with a film camera or a television camera to obtain a high point of shooting and give the camera motion in a vertical and horizontal plane to enhance the expressiveness of the image of a motion picture or telecast.
Operator cranes relate to an auxiliary camera technology designed for motion pictures.