Question 1

What types of mobile cranes exist?

Accepted Answer

There are several types of mobile cranes, including:

1. Telescopic Crane: This crane has a boom that consists of a number of tubes fitted one inside the other. The boom can be extended or retracted by using a hydraulic mechanism.

2. Truck Mounted Crane: These cranes are mounted on a rubber tire truck which provides excellent mobility.

3. Rough Terrain Crane: A rough terrain crane is designed for operations off-road and on rough terrains. It is single-engine machine where the same engine is used for powering the undercarriage and the crane.

4. All Terrain Crane: These cranes are a hybrid combining the roadability of Truck-mounted Cranes and the maneuverability of Rough Terrain Cranes.

5. Crawler Crane: This type of mobile crane is mounted on a tracked undercarriage, allowing it to operate on soft ground and uneven terrain.

6. Floating Crane: These are used on water, in ports, or for construction of bridges and ports.

7. Railroad Crane: These cranes are designed for use on railway tracks, often used for maintenance work or construction of railway lines.

8. Aerial Cranes: These are also known as "Sky Cranes", usually helicopters designed to lift large loads.

9. Pick and Carry Crane: This type of crane is similar to a mobile crane in that is designed to transport heavy loads, but it lacks the stabilising outriggers or legs that other mobile cranes have.

Question 2

How much does a mobile crane cost?

Accepted Answer

The cost of a mobile crane can vary greatly depending on its capacity, brand, model, and whether it's new or used. Small mobile cranes can cost around $100,000, while larger, more powerful cranes can easily cost over $1 million. Used cranes generally cost less but the price depends on the condition and age of the crane.

Question 3

How to choose the mobile crane?

Accepted Answer

Choosing a mobile crane involves considering several factors:

1. Load Capacity: Determine the maximum weight you will need the crane to lift. 
2. Height and Reach: Consider the vertical and horizontal reach needed for your project.
3. Terrain: If the crane will be used in a rough or unstable terrain, you'll need a crane designed for such conditions.
4. Mobility: If you need to move the crane from site to site, choose a mobile crane that's easy to transport.
5. Safety Features: The crane should have all necessary safety features like overload indicators, safety interlocks, etc.
6. Operator Comfort: The cab should be comfortable for the operator, with all controls easily accessible. 
7. Cost: Consider the initial purchase price, operating costs, and maintenance costs.

Question 4

What is the difference between a mobile crane and a truck crane?

Accepted Answer

A mobile crane is a generic term referring to any crane that is designed with mobility features, allowing it to be transported to different locations. It can include various types of cranes such as crawler cranes, rough-terrain cranes, and all-terrain cranes.

On the other hand, a truck crane is a specific type of mobile crane. It is mounted on a rubber tire truck which can provide excellent mobility. The truck crane can travel on highways, eliminating the need for special equipment to transport the crane. So, all truck cranes are mobile cranes, but not all mobile cranes are truck cranes.

Question 5

How hard is it to get a crane license?

Accepted Answer

The difficulty in obtaining a crane license can vary depending on the individual's prior experience, the specific type of crane they wish to operate, and the country's regulations. Generally, it requires a substantial amount of training and passing both written and practical exams. In the US, according to the National Commission for the Certification of Crane Operators (NCCCO), you must also be at least 18 years old and meet medical requirements. It can be challenging but is achievable with proper training and preparation.

Question 6

Accepted Answer

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