How do you choose a crane capacity?

What is crane capacity?

Truck cranes range in lifting capacity from about 14.5 short tons (12.9 long tons; 13.2 t) to about 2,240 short tons (2,000 long tons; 2,032 t). Although most only rotate about 180 degrees, the more expensive truck mounted cranes can turn a full 360 degrees.

What is crane capacity index?

In this document is explained how a “Crane Capacity Index” (CCI) can be determined. The CCI basically is calculated as follows: “Radius * Lifting Height * Capacity”. The result CCI is in Te ∙ m. To clarify calculations a Liebherr LTM 1100-5.2 is used as an example.

How do you pick a crane for lifting?

Here are seven tips for choosing the right crane for your project.

  1. Check the Load Weight to Be Lifted. …
  2. Know the Lift Height. …
  3. Find the Moving Distance (Horizontal). …
  4. Evaluate the On-Site Terrain. …
  5. Evaluate Access to the Project Site. …
  6. Check Possible Safety Issues. …
  7. Check the Cost. …
  8. Parting Words.

15 июл. 2019 г.

How is SWL of Crane calculated?

SWL or WLL are calculated by dividing MBL by a safety factor (SF). An example of this would be a chain that has a MBL of 2000 lbf (8.89 kN) would have a SWL or WLL of 400 lbf (1.78 kN) if a safety factor of 5 (5:1, 5 to 1, or 1/5) is used.

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How much can a 50 ton crane lift?

Produced by Terex, the American HC 50 is a hydraulic crawler crane that’s nimble, yet, very capable of performing tough tasks. It has a 50 ton (45.4 t) max lift capacity, 160 ft. (48.8m) max lift crane boom length, and a 130+40 ft. (39.6+12.2 m) max lift crane boom & Jib length.

How far can a 30 ton crane reach?

Hydraulic Truck Cranes

Hydraulic trucks range from 30 to 600 ton capacity and feature a hydraulic boom that can reach lengths up to 200 feet.

How much can a 40 ton crane lift?

It’s easy to tell how much a particular hydraulic truck crane can lift just by the name of it: A 40-ton crane can lift 40 short tons (80,000 pounds or 36,287 kilograms).

What is load chart?

: a schematic and graphic device to indicate the amount of authorized work yet to be performed by a machine, a group, or any other producing unit in a factory.

What does a 100 ton crane mean?

100 ton means, that theoretically the crane could lift one metre from the center of the column 100 ton. … The base formula for the Crane Capacity Index is: * For each main boom length at each radius the “Lifting height*Capacity” is calculated.

How much weight can a mobile crane lift?

Our heavy crane selection can lift anything from 200 to 700 tonnes, while still being fully mobile. Although this weight cannot be lifted to the height of a tower crane, sometimes height has to be substituted for unrivalled lifting power.

What should a lifting plan include?

Rigging and Lifting Plan Components

  • The rigging equipment.
  • Shackles, turnbuckles, and slings being used.
  • The weight being lifted.
  • Center of gravity of the load being lifted.
  • Crane capacity and crane charts.
  • Height, width, and length of the lift.
  • Atmospheric and environmental conditions when the process is being performed.
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How is SWL of D shackle calculated?

Formula: SWL (kg) = D2(mm) x 8

For example: Rope dia (D) = 12 mm SWL (kg) = D2 (mm) x 8 = D (mm) x D (mm) x 8 = 12 x 12 x 8 = 1152 kg SWL (t) = 1.15 tonnes The above equation can be reversed to calculate the diameter (D) in millimetres of FSWR needed to lift a given load.

Is WLL and SWL the same?

WLL vs SWL

“WLL” stands for “working load limit” while “SWL” stands for “safe working load.” The main differences between safe working load from working load limit is that “SWL” is the older term. Today, SWL is not used anymore because it has been completely replaced by the term WLL.

What is a 5 to 1 safety factor?

These single use/single trip bags are rated at a 5:1 safety factor ratio (SFR) which means that they have the ability to hold five times the amount of their safe work load (SWL). Remember, although the bag is rated to hold five times the rated safe working load, doing so is unsafe and is not recommended.

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