What are specifications for a crane?

What are specifications for a crane?

Specifications Cranes require separate values for bridge and hoist speed and acceleration. You must enter Speed (Empty), Speed (Full), and Accelerate and Decelerate values for bridge movement along the rails and hoist movement across the bridge.

How do you size a crane chart?

Here are some key steps:

1. Calculate the maximum radius from the center of pin.
2. Confirm the total weight of the load.
3. Determine clearance issues, either height under ceiling or overhead obstructions.
4. Allow for the height of obstructions between crane and load.
5. Consider the hook height required with lifting equipment.

What is load chart of crane?

A crane load chart helps the operator calculate a crane’s lifting capabilities. This chart ensures that the crane that is under operation does not exceed its lifting capacity. Load charts take into consideration how the lift capacity varies when considering the distance and the angle of the lift.

How is crane capacity calculated?

Measure geometric components

1. The standard calculation for maximum crane capacity is (r)(hC)/100.
2. R = Radius between the ground and load.
3. hC = Lifting height multiplied by the capacity.

What is jib length of crane?

The length of the crane’s boom from the midpoint of the mast or wall bracket to the end of the boom. This length (the crane span) should be the total distance out from the mast that materials will be lifted from and allow for trolley and hoist mechanism width.

What is load chart?

Definition of 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 is rated capacity of crane?

The definition of Rated Capacity is the maximum gross load which may be applied to the crane or hoist or lifting attachment while in a particular working configuration and under a particular condition of use.

What are the key considerations for the crane?

Key considerations for the crane are: >Specification Cranes used for personnel transfer should be certified to a recognised national or international standard for lifting personnel. Examples of relevant standards and guidelines include 7, 9, 10, 15, 16, 17– see references in section 5.

What does the line speed of the crane determine?

>Line speed The line speed of the crane can determine what sea states in which transfers can take place.

What are the requirements for crane hook rigging?

Documentation Rigging > The crane hook should have a positive lockable latch > An additional back up sling can be connected from above the crane hook to the master link of the carrier’s lifting assembly, to mitigate risk of failure of the hook

What do you need to know about crane lifting?

The lifting path, line of sight to the vessel and installation landing areas may vary greatly from site to site. Crane A crane suitable for personnel transfer should be certified for lifting people.