Your question: What is a thumb on a mini excavator?

The Strickland Main Pin Hydraulic thumb is a custom-designed thumb built around the existing bucket. The thumb tine spacing is set to mesh perfectly with the teeth on the bucket. The thumb pivots on the same pin as the bucket or coupler allowing the thumb to follow the same curl radius as the bucket.

What is a thumb on an excavator?

With an AMI Attachments Hydraulic Thumb, your excavator goes from digging to complete material handling. A Hydraulic Thumb makes it easier to pick, hold and move awkward material such as rocks, concrete, branches, and debris that does not fit into the bucket.
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What is a thumb attachment?

A thumb on a mini excavator can make it a versatile tool in construction, landscaping or recycling. A thumb, also known as a clamp, is a vital excavator attachment that can add productivity and flexibility.

How do you measure a thumb excavator?

Measure – Standing in front of the bucket ( between the machine and the arm) measure from the flat front of the arm right above the top of the bucket, across the bucket to the edge of the teeth. Pin On Style – Pin on thumbs require 3 different measurements.

AMI’s Progressive Link Thumb provides more constant pressure throughout the entire cylinder range. The extra linkage expands the thumb’s reach across the bucket’s entire rotation, including at full roll out. … This provides superior material handling, which improves machine productivity.

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How do you install a hydraulic thumb excavator?

Steps to install hydraulic thumbs in excavators

  1. Park your excavator on a level and smooth ground surface. …
  2. Now, place the hydraulic thumb close to the edge of the excavator’s arm on the ground. …
  3. Mount the Thumb pad to the stick of the excavator and then connect it with the hydraulics.


What is a bucket excavator?

A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining. The primary function of BWEs is to act as a continuous digging machine in large-scale open-pit mining operations, removing thousands of tons of overburden a day.

What does a hydraulic excavator do?

A hydraulic excavator is a heavy machine that has various sizes, a hydraulic arm with a blade at the tip, designed to move on wheels or chains and also has the ability to rotate 360 ​​degrees on its own axis. Among its functions are to excavate, rotate, move, load, mobilize and demobilize objects.

Can you put a thumb on a backhoe?

The mechanical thumb for a backhoe attaches to the boom and has 5 possible positions to help you stabilize materials which are hard to control. Simply fold it back or slide out of the way when not in use. Hands down the easiest way to upgrade your backhoe.

Special equipment and operation