Selecting the right machine for an earthmoving or civils project can be time hungry. Pick one that is too small and it won’t have the dig, lift or power capacity you need for the task. Too big and it may not fit on the site and be difficult to maneuver.
While you can spend time agonizing over brand or model, the size will be the most important thing. Excavator sizing can be broken into a few, easy-to-navigate categories:
The mini digger – 1T to 1.7T and <6T
These fellas can move with ease around landscaping, buildings and tight spaces, and on footpaths. They can also avoid obstructions like trees and hanging lines. Mini diggers are easy to transport. They be very versatile with attachments and the actions they can perform. The downfall of these smaller machines is the lift, reach and depth compared to the bigger excavators
8t to 25T
The most common size in commercial construction. These boys are large enough to handle a lot of attachments and offer power and capacity.
Useful for major construction, bulk earthworks and demolition projects. They have massive power in terms of both lifting and digging capacity.
The drawback here is that it’ll be a bit of a mission to transport, requiring a pilot vehicle. Site constraints also mean that an excavator this size sometimes simply wont fit.
Once you have a general idea of the size you will need, you can then look into more specifics. Evaluate your project and consider the following:
Finally, a few extra tips to keep in mind:
Loading out into a 6-wheeler truck can be done with a 5T excavator, but an 8T would be able to manage this easier due to the reach.
A basic rule to follow is that an excavator can lift 1/3 of its weight
i.e. a 20T excavator could lift approximately 8T
It is also possible that an excavator may not be the best machine for the job. If you’re moving dirt or metal around, you might also consider a skid steer. It’s maneuverable, compact and can be a little quicker than an excavator.
Now that you know what you’re after, check out the different excavator sizes and brands Equipt has available here.
Want to know more about excavators? Get in touch here.