It is the moment of the load lifted about the crane’s center. So moment = load * distance. A 300 tonne-meter limit can be inferred as a load of 10 tons being lifted at a distance of 30 meters from the center of the crane. So moment about the crane’s center is 10 tons * 30 meters = 300 tonne-meter.

## How do you calculate lift capacity of a crane?

**Measure geometric components**

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

## How is lifting capacity calculated?

Crane Lifting Capacity Calculation

(r)(hC)/100, where r is the radius (distance along the ground to the load) and hC is **lifting height times capacity**.

## What is the lifting capacity of a tower crane?

Tower Crane Specifications

Maximum reach: 230 feet or 70 meters. Maximum lifting power: **19.8 tons or 18 metric tons**. Counterweights: 20 tons or 16.3 metric tons.

## How much can a 50 ton crane lift?

It has a 50 ton (45.4 t) max lift capacity, **160 ft.**

## 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**.

## What is lift capacity?

The **maximum weight that can be safely lifted** or carried by a person or machine.

## How do I calculate my load limit?

Working Load Limit (WLL) is the maximum working load designed by the manufacturer. This load represents a force that is much less than that required to make the lifting equipment fail or yield. The WLL is **calculated by dividing MBL by a safety factor (SF).**

## 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. … At each radius the maximum value of “Lifting height*Capacity” is chosen.

## How much do big crane operators make?

The average salary for a crane operator in California is **around $63,280 per year**.