If your company is involved in surface mining or civil engineering, chances are that you will need a dragline excavator. A dragline excavator is the heaviest and largest piece of construction equipment out there. It can drag material a great distance and can be used for deep-down excavation. If you use one regularly, you are probably thinking of purchasing a dragline excavator and several companies sell them. They are costly pieces of equipment so are a big investment. However, there are plenty of opportunities to buy second-hand dragline excavators although you then do have to perform extra checks before purchasing.
To answer this question, you will need to assess your requirements. Will you be using the dragline excavator regularly or do you only plan to use one intermittently or for a one-time job? If you think that you will be using a dragline excavator daily, it makes sense to purchase one. However, if you don’t think that you will need it for more than a few weeks, it would be more cost-effective to rent one.
The first thing to look for is the operating weight. If you have a large project, you will need an excavator with a larger operating weight. You will also need to consider the digging depth, digging force, and dump height and reach. Make sure that the undercarriage is made of strong material. Chances are that you will be using the dragline excavator on rough terrain so you will need a strong undercarriage. Also, make sure that it is easy to clean and maintain the undercarriage. The next thing to consider is the cab. Is it comfortable and roomy? Does it have air conditioning and heating? These may seem like minor points but operator comfort is very important as it will increase productivity.
If you are purchasing a second-hand dragline excavator, there are plenty of other checks you should perform. Ensure that there are no loose connections between the boom, ropes, and bucket. Pins and bearings should be tight as looseness in the connection points will affect the accuracy of the dragline excavator. Also, check for any cracks in the connection points between the boom, ropes, and bucket. If there are any cracks, chances are that the boom or ropes will need to be replaced. Make sure that there are no dents or damage in the undercarriage. If there are, it could mean that the dragline excavator has been in an accident or the machine hasn’t been used with care. If there is some damage, there could also be internal damage. The dragline excavator is then best avoided. Inspect the hoses, cylinders, and lines to ensure that there are no leaks. Finally, check the hours meter to see how much it has been used. If the meter is broken, it could have been tampered with and may have logged many more hours than the meter has recorded.