About second-hand Destoners

Destoners, also known as clod separators, are indispensable when harvesting your vegetables or fruit. During harvesting of potatoes, carrots, beets and flower bulbs, you also get stones and clods. These stones and clods must then be separated. This preferably happens at the start of the processing line so that, for instance, no damage to cutting machines can occur during harvest processing. 

Different types of clod and stone separators

Stone separators and clod separators come in different types, such as pump destoners and cyclone destoners, both of which work with water. In addition, there are optical quality sorting machines that can recognise stones and clods to then remove them from the stream. Finally, there are also mechanical stone separators. 

Destoners in combination with a drum washer for potatoes and carrots

Some destoners combine destoning with washing the potatoes and carrots. In this case, destoning is done using an adjustable vertical water flow, which carries the tuber crop to an output conveyor or washing drum. Because the stones are heavier than the vegetables, they sink to the bottom of the de-stoner. The stones and clods then end up on a belt that disposes of them. This type of destoner is often used in combination with a drum washer. The advantage of this method is high capacity while separating the stones in a product-friendly way. 

Mechanical stone and clod separator 

The operation of the mechanical clod separator is based on the fact that potatoes are springy and stones and clods are not. The supplied crop, including stones and clods, first arrives on a rotating drum. The elasticity of the potato, which is not present with stones and clods, provides the separation. The potatoes jump over an adjustable separator plate, while stones and clods fall in front of it. This creates a clean product flow.

Destoners from Tummers, Van Dijke and more

We offer various used clod separators and have continuously changing stock. You will find de-stoners from the following manufacturers in our range:

• Van Dijke
• Allround
• Tummers
• Marcelissen

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How do I find the right used destoner for me?

On this page you will find an overview of all available used destoners. In the filter on the left you can select what you are looking for. On the page of a specific machine, you will find all necessary information about the product, including pictures. Are you interested in one of the machines? Then you can easily request more information or a free quote from us. Is there something you need to know for sure? Contact us by phone or visit us to see the used machine for yourself at our company. You will get the best impression of the machine if you see it for yourself. Of course, we are also happy to give you advice on which clod separator would best suit your situation.

How do we work at Duijndam Machines?

At Duijndam Machines we always try to have the broadest possible stock of quality machines. Usually our stock counts around 1200 used machines. Our philosophy is that our customers will be able to use the delivered machines for many years. Our choice for quality starts with a critical purchasing policy. After purchase, we check the machines for all sorts of aspects. This is followed by a thorough cleaning and any necessary repairs of the offered machine. Meanwhile, clear pictures and description are added to our website so that potential customers can get a good orientation online. Once you have found a suitable machine, it can be delivered to your doorstep worldwide if necessary.

Are you interested in one of our used destoner for potatoes, carrots, beets and flower bulbs? Then please contact us and we will provide you with personal advice.