Chemical industryCustom made


To accurately fill construction glue in buckets, a powder-dosing machine has been constructed in a bucket processing line. The goal is to improve the efficiency of the production process.

De aanleiding tot het project

The construction glue is delivered as powder to the construction site, after which it is made into glue by adding water. This gives the glue a very long shelf life and enables it to make custom amounts of glue. The powder is packaged into buckets. In order to keep up wih increasing demand, Xella needed a new bucket line to increase its production.

Background of this project

For one of its filling lines, this customer was looking for a solution that could de-nest a wide variety of buckets to replace an existing time-consuming de-nesting concept. Because of the considerable diversity and often small production runs, the bucket de-nester should reduce the setup times and easily adapt to different cycle times. In addition, the construction should be as simple and reliable as possible.

The bucket de-nester is set up in an automated filling line which produces pastes.

The coupling between the de-nester and the filling line was developed in co-operation with the client. The filling line features a chain conveyor on which the buckets must be positioned accurately and ‘on time’. Despite the wide range of bucket dimensions, we managed to create a complete system that guarantees the desired cycle time of the line.

The result

Xella now has a bucket line which greatly increased the production capacity for construction glue. This way, the company can keep up with the growing demand. The line also relieves operators from most physical effort, and it is easy to clean and operate.

What Xella has to say about Van Rijn

The automatic bucket de-nester supplied by Van Rijn excels in its mechanical simplicity and ease of use. We can process 16 different types of bucket with this de-nester.  Because of the simple construction, we are confident that we will easily be able to process even more different types of stacked buckets in the future without any problems. The biggest gain has been achieved in reducing the setup time when changing bucket type. A series of handwheels makes this quick and easy. We have reduced setup times by 70%!

Olaf van Grinsven – Production Manager


Xella is a well-known supplier of building elements in Brabant, a province in the southern part of the Netherlands. These building elements can be assembled to specification with a specially developed construction adhesive.

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