NFT-Gutter washer

We regularly receive requests for thorough gutter washers for hydroponic production systems. The gutter washers for NFT gutter systems currently on the market often use fresh water that is then lost and wasted. The cleaning results are also mediocre. Limex decided to clearly identify all the advantages, disadvantages and wishes within the industry. We then developed the first NFT gutter washer, which will be put into operation in December 2021.

Gutter washers from Limex for a successful harvest

Hydroculture is a cultivation method with infinite possibilities. If you are a hydroponicist, you know better than anyone how important it is for a successful harvest to clean the gutters thoroughly. Good cultivation hygiene begins with clean starting materials. Our NFT gutter washers will help you remove plant debris, root residues, algae and substrate from your gutters, without using chemicals that could harm your crops.

Removal of Pythium

Prevent the spread of Pythium, a fungus that can, for example, occur in algae in hydroponic production systems. This fungus affects the oxygen level in the water, which can lead to stagnation in plant growth. Our Limex gutter washer thoroughly cleans gutters, so fungi such as Pythium don’t stand a chance. If there is stubborn dirt on floats or gutters, we use a disinfectant such as hydrogen peroxide that is gentle on the cultivation water. This exponentially reduces the risk of spreading Pythium. 

Use of chemicals in gutter washers

Although using chemicals produces an ultra-clean result in most cleaning processes, in hydroponic production systems,it is essential that as little chemical residue as possible remains in gutters. Alkaline cleaning agents have the properties to clean gutters thoroughly, but can be harmful to the cultivation water. That is why we primarily use the disinfectant hydrogen peroxide in our NFT gutter washers. To do this, our Limex washing machines are specially configured to dose hydrogen peroxide automatically. In this way, our washing machines safeguard the quality and health of your products.

Why a Limex NFT gutter washer?

Good cultivation hygiene is an essential factor for your end products. The gutter washers from Limex ensure that viruses, bacteria and moulds don’t stand a chance in your crop.

  • Removes fungi such as Pythium;
  • Modular design allows for flexible configuration of washing lines;
  • Saves on consumption of water, energy and chemicals.
  • Low maintenance, easy to clean and robust construction;
  • The ability to clean up to six gutters simultaneously;
  • Circular system: water is filtered intensively and reused to minimise water consumption. For Limex, it is a must to minimise water consumption, all the more to approach zero-emissions in hydroponic production systems;
  • Ideal for an NFT gutter system.

Our washers give a very thorough cleaning result. Even so, there are some blind spots and drawbacks to this unique approach. If you need advice, we will be happy to help you.

Possibilities with our NFT gutter washers

  • Power supply suitable for different types of electric supply for international customers;
  • Automatic dosing of cleaning agents or disinfectants;
  • Additional filter technologies;
  • Various disinfection methods;
  • Various types of gutters are possible, various dimensions and materials. For example aluminium or hard plastic and black or white;
  • Washing water heated by electric heating, heat exchanger or steam injection;
  • Blowing off water droplets.

Sinner’s Circle

We use a cleaning principle in which four variable factors are applied in quantities balanced to each other. This method is called Sinner’s Circle. The variables taken into account in this principle are: mechanical action (force), time, temperature and the cleaning agent (chemicals). A good balance between these variables will give the best result. That is why it is important to have your gutter washer set up properly by our technicians.

Questions about this principle? Please feel free to contact us without obligation. We’ll be happy to advise you!

Why a Limex NFT gutter washer?

With close to 40 years of experience under our belts, we know better than anyone how to meet the strictest hygiene and food safety requirements. We also adjust our gutter washing machine very precisely to your washing requirements such that water, energy and disinfectant are used in a controlled way. With this, you can be sure of a sustainable and effective wash. 

Limex keeps innovating

Would you like advice on the most effective removal of viruses such as ToBRFV, CGMMV, TVX and the fungus Fusarium from harvest crates and trays? With our many years of process knowledge and with laboratory research, we can demonstrate the best cleaning method (Limex research 2017, 2020, 2021). 

More information about gutter washers?

Would you like more information about our gutter washers or other washers? Please contact us and we’ll be happy to help!

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This is what satisfied customers say about us

Fully automatic washing line for Royal De Ree Holland

“What we now have is a system that washes the transport crates far better than the previous installation, and the number of operators has been reduced from three to just one.”- Joost van den Berg

Limex crate and tray washer at Jungpflanzen Gernert

“The trays are thoroughly cleaned and disinfected with foam from Menno Florades. The washing result could be seen very quickly from the better root quality.” – Achim Gernert

Intensive and sustainable crate washer for Wijnen Square Crops

“With this washer, we can be sure that the crates that come out of the machine are clean and free from viruses and other diseases; we can use them in our processes without risk.” – Koen Saris

Meet our sustainable partner: PlantLab

“We are excited about the washing result of the Limex machine. We like to share our plans and working method with a company like Limex that is also committed to sustainability and we are looking forward to a beautiful and successful collaboration in the future!” – Mr. Hans van Scheijndel

Limex develops process for hygienic cleaning of propagation trays

“Limex is developing constantly to meet our increasingly stringent requirements. We can recommend Limex with a clear conscience.” – Oliver Schneider

5 Tray washers in 4 years at Svenska Skogsplantor

“Our collaboration with Limex has worked very well. A supplier that we will continue to work with and can recommend as a good partner.“ – Niclas Noord

Limex crate washers at Wesselman Flowers

“During cultivation, we see cycle after cycle of tulips emerging uniformly. An extra benefit is that the machine can remove the TVX virus. I can certainly recommend a Limex washer to every tulip grower.” – Joost Wesselman

Hishtil and Limex announce intensive collaboration

“The fruits of this productive collaboration between Limex and Hishtil permit both companies to offer their customers the best sanitation solution and healthy propagating material that will allow them to maximize crop quality and yields.” – Amit Dagan

Silver – our tray washer partner in Chile

“It is a pleasure for us to work with Limex, which is aware of the problems of hygiene and water scarcity that concern us in Chile and some regions.” – Martin Campos

Limex crate washer at Boer Erik

“I have seen Limex machines at other fruit growers, even one that has been in use for 25 years and is still running. When I invest, I think it is important to invest in high-quality and well-functioning products that I will be able to use for years to come.” – Boer Erik

Industrial tray and trolley washing machines for Ontario Plants Propagation, Canada

“I’m really proud that we get such large, intensive trolley and tray washers.” – Pieter van Dijk

Limex Bucket Washer at Veiling Holambra Brazil

“The delivery of the bucket washer from Limex has fully met all our expectations! Limex has now a satisfied customer in Brazil!” – André van Kruijssen

Limex trolley washer helps improve hygiene at WPK Vegetable Plants

“This investment improves our capacity to keep any potential threats at bay,” says Erik van der Arend, general manager at WPK Vegetable Plants.

LCS/Royal FloraHolland Bucket Washers

“The Limex washers are an indispensable component for a successful service to LCS!” – Jan van Hoef

Sustainable box cleaner Scherpenhuizen

For distribution centre Scherpenhuizen, Limex supplied a boxwasher, type KKW6000NS for sustainable washing of boxes where the water is heated by high-quality residual heat from cooling.

Limex tray washer at Bergvik Skog Plantor

“To have a tray washer that works this great has really boosted our production at the nursery. The growing trays gets clean and we can use them over and over again in our production without any problems. I can highly recommend any forest plant producer to use a Limex Washer in their production line.” – Ronny Anngren

Limex crate washer at Banken Champignons

“The Limex crate washer meets our hygiene requirements (microbiological cleanliness) and produces a drying result of less than four grams per crate. This allows an output of 5,600 clean crates per hour, and that maintains our delivery capacity at an optimal level. ” – Jurgen Banken