Sijojimo kaušas, sorteringskopor, sieblöffel, třídící lžíce and Seulakauha are all different names used for screening buckets around Europe. Regardless of what it’s called, there is one common question we get from those who are unfamiliar with this type of product.
“What exactly is a screening bucket, and what does it do?”
To answer this question, we’re going to take a look at the following:
What is a Screening Bucket?
What are Screening Buckets Used For?
What are the Different Types of Screening Bucket?
How to Choose the Right Screening Bucket for My Excavator or Loader?
What is a Screening Bucket?
Screening buckets are attachments for excavators and loaders, which are designed to separate materials of different sizes. Some screening attachments crush and shred material as well, whilst other buckets like the Gyru-Star range, are non-destructive.
Screening buckets come in a range of sizes, with models commonly available for carriers from 1 to 30 tons. Gyru-Star’s range of screening buckets covers this entire range, from the smallest 2-50E for 1-ton excavators, all the way up to the 6-150MAX for 20 to 30 ton excavators and 10 to 15 ton loaders.
What are Screening Buckets Used For?
Screening buckets have a wide range of applications, ranging from recycling construction waste to aerating compost, though different types of buckets will have different uses.
Here’s a few of the applications which Gyru-Star Screening Buckets have been used for:
Aerating compost and topsoil
Mixing and blending aggregates
Screening biomass material
Cable and pipeline padding
Recycling construction and demolition waste
Recycling road scrapings for resurfacing
Removing rocks, roots and other impurities from soil
What are the Different Types of Screening Bucket?
There are various different types of screening buckets currently available on the market. Though they generally fall into one of two categories. Destructive and non-destructive.
As the focus of this article is on non-destructive screening solutions, we will be taking a look at two of the most common options for non-destructive screening.
Rotary Type Screening Buckets
These buckets use a rotating steel basket, which is full of holes of a set size. As the basket rotates, it creates a rolling action, causing the smaller material to fall through the holes. However, as the holes are a fixed size, a new basket is required to change the fragment size.
Whilst the rotary buckets can be very gentle on the material, they are often very inefficient, and cannot work in wet, sticky material such as clay. On the other hand, they do generally perform well when screening aggregates.
Poly-Star Screening Buckets
Poly-star screening buckets have quickly become the number one solution for non-destructive screening. Gyru-Star is the market leader in this sector and is the world’s largest producer of screening buckets.
One of the main advantages of poly-star screening buckets is that they screen material without crushing, shredding or tearing. Furthermore, some screening buckets, like those from Gyru-Star, are available with multiple fragment-size kits. This allows the operator to adapt the fragment size to the task at hand.
Additionally, poly-star buckets tend to be quieter than their steel counterparts. This is ideal for noise-sensitive sites, such as those in urban centres and residential areas.
How to Choose a Screening Bucket for Your Excavator or Loader?
There are a few important factors to consider when choosing a screening bucket for your carrier, including the application, type of carrier and the weight capacity.
Gyru-Star offer models to suit a range of carriers, from 1 ton mini-excavators to 15 ton wheel loaders. The E, HE, HDX and MAX ranges are designed primarily for excavators, though some HDX and MAX models can be adapted for use with loaders as well.
The L range is designed especially for loaders. This includes compact loaders and tractors, telehandlers and backhoes. The SL range, on the other hand, has been designed specifically for skid steer loaders, such as those from Bobcat.
Gyru-Star’s range includes models to suit carriers from 1 to 30 tons, so there is sure to be a screening bucket to fit your existing carriers.
You can find out what the appropriate carrier weight is for each model, by visiting the corresponding product page. If using a Gyru-Star screening bucket with a tilt rotator, then it may be necessary to use a lighter bucket, due to the additional weight of the tilt rotator.
One of the biggest advantages of Gyru-Star Compact Screening Systems is their versatility. Their non-destructive screening capability means that the same bucket can be used for anything from aerating compost to recycling demolition waste.
However, different applications will require different fragment sizes. For example, if you are aerating compost then a 0-40mm fragment kit may be most suitable. For backfilling cable and pipe trenches, a 0-10mm fragment kit may be required.
What Next?
You can find out more about our range of Compact Screening Systems here.
To find your nearest dealer, click here.
If you have any questions about our products, or would like to discuss which screening bucket is right for you, get in touch with our team here.