The Working Range Of The Crane


The range of the crane is the horizontal distance from the turntable to the hanging object, which is how far we can send. It refers to the horizontal distance of the axis of crane revolving center line to the center line of the hook at the rated weight. It's usually called the radius of turn or the radius of work, show "R", The unit is "m". The working range of the crane indicates the scope of work when the crane is not shifted, It includes both the largest (R mix) and the minimum amplitude (R min) parameters. When an Angle is at a level close to the level of 130, from the center of a crane slewing to hook the center line of the greatest horizontal distance, is the biggest: when the lift arm up to maximum Angle is an Angle (average 780), the minimum distance to the center of a rotary hook the center line, the margin to a minimum.
The lifting weight of the crane varies with the amplitude, The same crane, different amplitude, its weight is different. For A wheel crane, with A leg device should also be expressed in A effective amplitude, which leg lateral work, under the rated lifting weight, lifting hook center perpendicular to the lateral horizontal distance of the center line of the leg. The effective range reflects the actual working ability of the crane;If you do not use the side work, you will work with A1 (single) or A2 (twin).

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