What is the excavator performance per hour and per shift? Calculation of the performance of an excavator

Special equipment can be of all kinds, but among them, excavators stand out most, since they are used most often. You can find them in specialized stores in a huge variety, but you can also order them for rent for a day or a few days so that they can fulfill their task and go to their places. This will allow you to save without buying a whole machine for one-time use. However, before renting an excavator, you will need to think about exactly how you will use it, in what conditions, and what goals you set for it. And with this in mind, you should study the performance of the excavator, since this is its most important parameter, which will allow you to understand what time you need to take it, and also whether you should think about a more powerful model. What is productivity? And what kinds of this parameter exist?

Excavator operation

So, in order to talk about what the performance of an excavator, you need to have an idea of what exactly it can do on the construction or work site. As you understand, its main function is the development of soil, that is, digging out the earth and storing it next to the pit being formed. But this is by no means the only task - for example, an excavator can also load both soil and other materials into the dump truck body. Thus, he can perform a variety of tasks on the site, but it should be understood that they all use the same tools, and also imply roughly the same actions. Accordingly, the performance of this type of special equipment can be calculated without any problems. To do this, you just need to understand which variables are key, after which the simplest equations are compiled, allowing you to instantly calculate the performance of the excavator.

Basic variables

So, what do you need to consider in order to calculate the performance of the excavator as accurately as possible? Naturally, you should understand that there are several types of performance, for which there will be its own formula, in which other variables can participate, so there is no universal set. But almost everywhere you can see the indicator of the capacity or volume of the bucket, which is the most important in performing the calculation. Well, the rest of the variables can be the number of cycles of repetitive actions per unit of time, different coefficients, if they are taken into account, for example, the soil loosening factor, and even the time spent for unloading, bucket turning and so on. In general, you will need to take into account very many parameters in order to accurately be able to calculate any, even the performance of the excavator, which is the most requested type of data.

Theoretical productivity

It's no secret that the performance of the excavator is the most important, as it is as close to real calculations as possible. But it will be discussed later, since it can be attributed to practical types. And first of all, it's better to pay attention to the theory, namely, theoretical performance, which is also called constructive. With its help, you can calculate the amount of work that the excavator can make in an hour without breaks. To do this, the total capacity of the bucket is multiplied by the number of cycles performed by the machine, and also by 60 to find out the result. It will be expressed in cubic meters per hour. This is how the excavator performance is calculated on paper, but everyone knows perfectly well that there are no ideal conditions, so for a more practical approach, there are other formulas

Technical performance

Calculation of the performance of the excavator, which is called technical, is distinguished by the fact that the conditions in which the special machinery works are taken into consideration here. This means that the bucket volume, its filling ratio, and the number of cycles, taking into account the operating conditions in a particular place, divided by the soil loosening factor, are multiplied among themselves. Naturally, all this is also multiplied by sixty to get the result in cubic meters per hour, which is a standard measure of the performance of concrete excavators. But it does not take into account a very important parameter - it's inevitable downtime that happens in the process of work. There are no conditions in which the excavator could work without the slightest breaks and hiccups. It is for this you need to calculate the operational performance of the excavator per hour, since it is the closest to reality.

Operational productivity

Most often, the performance of the excavator is calculated per shift, since within an hour it can be quite difficult to take into account all possible downtime and failures. But, of course, for this, first we need to perform calculations for one hour, then to calculate the average indicator for the shift. And in this case you will have to work hard, since the formula for this type of performance is the most difficult. But this seems only at first glance, because in fact this formula completely repeats the previous one, only supplementing it with another variable - the coefficient of using the machine for a specific time, it is he who determines all idle times and hiccups. As a result, as in the previous cases, the productivity of the excavator is m3 per hour, which is very convenient then to use for shifting - naturally, depending on their duration.

Regulatory performance

This type of performance almost completely corresponds to the operational one, but it is only represented in the form of specifications, that is, values that certain types of excavators must match. That is, this value is the amount of work that a particular machine must perform in a certain period of time, taking into account all operating conditions.

Duration of the cycle

The meaning of the duration of the cycle has been mentioned more than once, but what does it represent? So, the cycle is the sum of four indicators of duration, which you must take into account. The time for digging, turning on unloading, the very process of unloading, and also turning back for digging - the sum of these values and form the duration of one cycle.