HRVB - Suction excavator attachment / Vacuum bucket

Especially in demolition sites, the smaller and lighter pieces of debris should be separated from the rubble piles because that way the waste treatment is much easier and cheaper. That is because commonly waste treatment is priced by weight.

And why not use a regular bucket? With the HRVB less sand and rocks end up in the waste containers. So the waste container won’t include that much of a dead weight that consists of rocks and sand. Another way to do the sorting is by legwork, but that is a much slower way to do site cleaning than with an excavator with this bucket. In other words, using this bucket is much more cost-effective than traditional ways to collect waste.

With this bucket, it is fast to collect any types of wool, plastics, pieces of wood, and light expanded clay aggregate (LECA). It is even possible to collect specific materials during the demolition work. For example, the bucket can be used for collecting the wool from the structures right when they are exposed during the demolition. That way wool can be sorted before it ends up in rubble piles.

In construction sites, HRVB Hydraulic Recycling Vacuum Bucket can be used for daily clean up. Construction sites are often large areas and because of the wind, the packaging plastics and such try to spread to the environment. With the bucket, one excavator and operator can do the daily clean-up much faster than a bunch of workers.

First of all, the bucket can be equipped with a quick coupler so you can pick it up with your excavator. The hydraulics of the bucket includes four lines. Two of them are the pressure and tank lines, which transfer the hydraulic power to the hydraulic motor of the bucket which spins the fan blade. Because the hydraulic oil flow is powering up the operation of the bucket, the blade RPM, or power of the suction, is continuously adjustable via hydraulic oil flow. Two other lines are used for the hatch controls. This means that the operator can adjust the size of the suction port with the hatch.

The bucket also has a port for an auxiliary vacuum hose. This port can be found from the backside of the bucket. This port can be used for vacuum cleaning that is done by legwork and a hose. So, if the cleaning task needs even more precise vacuum cleaning, the hose can be used for these tasks. The recommended diameter of this hose is 80-100 millimeters which ensure fast vacuum cleaning in tight places. For example, with the bucket’s auxiliary vacuum hose it is possible to empty stormwater drainages from the sand. So with this port, the user can do vacuum cleaning tasks which decreases the need for vacuum trucks in certain tasks like stormwater drainage emptying tasks.

But what about the air blowing applications? The air blow port is on the same side as the auxiliary vacuum port. Basically, the air is blowing through this port all the time when the bucket’s fan is running. But if you want to use the bucket for air blowing you just need to flip the bucket with a rotator to another way around and you are ready to blow for example leaves, trash, and snow from your way. This application is in use at the tramway of Tampere, Finland as we speak.

The heart of the new product category, HFC Hydraulic Centrifugal Fan, can be a solution for many ventilation, air blow, and vacuum cleaning applications. Because the fan is driven by a hydraulic motor, it can be fitted into tight spaces. That’s because cooling of the unit is done by the air that flows through the unit.