Excavator Arm Extensions – More Reach for Special Jobs
An excavator arm extension is used when the existing reach of the excavator is insufficient for certain tasks. It is fitted between the excavator or quick coupler and the attachment used, thereby increasing the achievable working distance.
excavator arm extensions can be useful, for example, for slope work, trenches, deeper working areas, or hard-to-reach places.
It is important to note, however, that the additional length changes the leverage of the machine. Therefore, the excavator arm extension, excavator, mounting, and attachment used must be technically compatible.
→ View excavator arm extensions
What is an excavator arm extension?
An excavator arm extension is an additional component that increases the distance between the excavator arm and the attachment.
Depending on the design, there is a suitable mounting on the excavator side for the existing quick coupler. On the other side, there is another mounting for the desired attachment.
This allows, for example, an excavator bucket to be used further away from the original pivot point.
When is an excavator arm extension useful?
An excavator arm extension can be useful if a specific working area cannot be reached or can only be reached with difficulty with the excavator's normal boom configuration.
Typical applications include:
- Working on slopes
- Working in deeper areas
- Clearing or finishing trenches
- Working behind or under obstacles
- Landscaping
- Gardening and landscaping
- Specific earthmoving and clearing work
However, whether an excavator arm extension is suitable for the specific job always depends on the machine, the required reach, and the attachment used.
What are the advantages of an excavator arm extension?
The main advantage is the additional reach. This allows access to working areas that might not be reachable with the excavator's normal reach.
Depending on the application, this can result in further practical advantages:
- greater working reach
- access to deeper areas
- working on more distant surfaces
- additional possibilities for slope and clearing work
It should be noted that a greater reach does not automatically mean that the same load can be handled as without the extension.
What changes with an excavator arm extension?
With an excavator arm extension, the attachment is further away from the excavator. This changes the leverage of the machine.
This means that when selecting, not only the desired length should be considered. The weight of the attachment, the machine configuration, and the technical limits of the excavator also play an important role.
Especially with greater reach, it should therefore be checked which attachments and working conditions are intended or permitted for the respective combination.
Which attachments can be used with an excavator arm extension?
Which attachments can be used depends on the specific excavator arm extension, its mounting, and the technical requirements of the machine.
Depending on the design, certain digging buckets or grading buckets may be suitable, for example.
It is not only crucial whether the mounting fits mechanically. The weight, dimensions, and use of the attachment must also match the combination of excavator and excavator arm extension.
Information on the weight of excavator buckets can be found here:
→ How much does an excavator bucket weigh?
excavator arm extension for slope work
One possible application for an excavator arm extension is slope work. The additional reach allows further parts of a slope to be reached.
In combination with a suitable grading bucket, the additional reach can be helpful for certain profiling and clearing tasks.
Learn more about rigid and hydraulic grading buckets here:
→ Grading bucket: Rigid or hydraulic?
What mounting do I need for an excavator arm extension?
For an excavator arm extension, the mountings on both sides must be considered.
The excavator-side mounting must match the existing quick coupler or the excavator's mounting. At the same time, the attachment-side mounting must match the attachment subsequently used.
Depending on the design, this also allows for combinations where the mounting on the excavator side and on the attachment side differ.
If you don't know what mounting your excavator has, you can use our mounting finder:
→ Determine excavator mounting with the mounting finder
Further information on excavator mountings:
- Which excavator mounting do I have?
- Which excavator bucket mountings are there?
- MS01, MS03, MS08, MS10 & MS21 – Dimensions and differences
What length should an excavator arm extension have?
The appropriate length depends on the required additional reach and the technical capabilities of the machine.
A longer excavator arm extension offers more reach but also changes the leverage more significantly. Therefore, the longest available version should not be automatically chosen.
The following points, among others, are relevant for selection:
- Excavator specification and machine configuration
- required additional reach
- weight and design of the excavator arm extension
- weight of the attachment used
- existing mounting
- intended purpose
excavator arm extension for mini excavators
excavator arm extensions can also be used for certain jobs with mini excavators. Especially with smaller machines, particular attention must be paid to ensuring that the chosen combination is technically suitable for the machine.
A suitable excavator arm extension cannot be reliably determined based solely on the machine weight. The excavator's technical data, the existing mounting, and the attachment used are decisive.
What should I look for when buying an excavator arm extension?
Before making a selection, the following points, in particular, should be clarified:
- What mounting does the excavator have?
- What mounting is required for the attachment?
- How much additional reach is actually needed?
- Which attachment should be used?
- What is the weight of the attachment used?
- Is the combination technically suitable for the machine?
If you are unsure about the mounting or design, the data should be checked before ordering.
Conclusion: More reach with the right excavator arm extension
An excavator arm extension for excavators and mini excavators can increase the achievable working distance and thus create additional application possibilities.
However, it is crucial that the length, mounting, excavator, and attachment used are technically compatible. The greater distance of the attachment changes the leverage, which is why selection should not be based solely on the maximum possible extension.
→ View excavator arm extensions
Are you unsure about the mounting or design? Use our mounting finder or contact us with the data and photos of your machine or mounting.
