When it comes to comparing the different mini excavators, there are some main factors that need to be taken into consideration. These include the operating height, dump height and digging depth. These 3 aspects will always have an effect on the size and type of machinery that you will obtain as they impact directly on the productivity levels when it comes to job sites.
Before deciding on one model, make sure you are pairing your requirements with the capabilities of a machine in order to ensure they are matching up. Choosing an excavator that is undersized will not provide enough functionality or power in order to accomplish your job requirements in an effective manner. And even when the bigger excavators may seem like a better choice they can risk causing unnecessary damages on a job site as well as using significant amounts of fuel.
Below are the main factors that manufacturers make use of to compare diggers to their competing models. Some of the machines can fall outside of the ranges, they still represent an average of the availability currently.
These are mainly utilized for installing cables or conduits and underground-utility construction. The directional bores are able to drill in a horizontal manner underground with average diameters of between 3.7 to 4.5 inches in relation to diameter for the mini excavators.
This is a representation of the “total output” these machines are capable of. The lower end machines are designed for lighter duties such and handling of materials and landscaping and the higher end machines are designed for mining applications, heavy-duty construction, trenching and stump removals. You can expect these machines to feature horsepower of between 10hp and 50hp.
This design will allow the operators the ability to hydraulically-shift their boom in specific ranges of degrees to the right or the left. These are utilized for trenching and digging in a parallel way to the tracks of the machine. The typical swing speeds range between 9.2 and 11 RPMs.
In regards to the horsepower required even with the light-duty tasks, each mini digger uses diesel fuel and will feature tank sizes that vary from as little as 3.6 gallons onto 33 gallons dependent on the output and size of these machines.
With the intention to maintain torque loads placed on the engine which occur with varying demands, a typical maximum when it comes to governed RPM is about 2200 RPM.
This should be one of the main considerations to keep in mind before purchasing a mini excavator. This is because it will dictate the depth of the trenches. When it comes to mini diggers you can expect a 5.5 to a 12 feet deep range.
Another important consideration, particularly when the machine will be used to handle materials on a job site. The maximum dump height varies between 6 to 13 feet.
Often referred to as “compact” or “mini” this portion of the excavators weigh anything from 2,000 to 18,500 lbs and will be chosen according to the least impact it will have on the working environment.