Drying Rack

For drying large amounts of cannabis buds we use a Drying Rack whether in existing or new drying rooms.

The main difference between the traditional drying-racks that cannabis growers currently use and our drying-racks, is that in traditional methods the air blows over the product, while, in our innovative method the air is sucked from top to bottom throughout the whole product. As a result, each and every cannabis bud is evenly dried and the quality of the final product is significantly improved.

You can use it for medical and recreational cannabis as well. 

To clarify, you can place a maximum of three sandwich units in one drying-rack.  

Per one drying cycle, in the properly filled drying-rack, you can dry 25kg(55lbs) of cannabis buds at the same time. And one drying room can certainly be filled up with a lot of drying-racks.

 Several Canna-Trays in one drying rack

A drying room full of drying racks

Empty drying rack

How do we fill the Drying-Rack?

  • Firstly, at the top of the piles of Canna-Trays, there are 3 filters.
  • Secondly, 6 piles of Canna-Trays you can place on these 3 filters in the drying-rack.
  • Finally, at the bottom of the drying-rack, as well as at the top, there are 3 filters.

Three sandwich units in a drying rack

Drying Rack - Transparent view of one half of the drying cart

Transparent view of one half of the drying rack

Components of a full Drying-Rack

A: 126 Canna-Trays

B: 6 HEPA-filters

C: 6 filter pads

D: 3 ventilators

E: Closeable slide

F: Closeable valve

G: 4 swivel wheels with brakes

H: ABC software on a tablet



Size of the drying-rack: L 1914x W 800x H 1845mm (L 75,4 x W 31,5 x H 72,6 “)

Transparent view of a drying room full of drying racks

Details of how the Drying-Racks works:

  • There are 4 ventilators (D) that suck the process air (1) through a specific row of drying-racks.
  • Therefore that process air (1) goes through the HEPA filter and filer pad (B&C) and through the Canna-Trays (A) full of cannabis.
  • While going through cannabis, process air absorbs moisture from it.
  • A part of the wet process air (2) goes towards the drying unit (F), through the tubes (E).
  • In the drying unit (F) moisture is then absorbed from the air and the temperature of the air is going up.
  • This dried and warm air (3) mixes with the process air (4) that already circulates.
  • Finally, the mixed air is at the wanted humidity and temperature again and enters the drying-racks (1).

The Drying-Racks standing in the line:

The drying-racks in the middle

Standing in the middle of a row, all drying-racks have both, the slide (at the bottom) and the valve (on top) open.


The drying-rack at the back

Standing at the end of the row, the drying-rack has the valve closed and the slide open.


The drying-rack at the front

Standing at the beginning of the row, the drying-rack has the valve open and the slide closed.


Front of a row of drying racks

Back of a row of drying racks

ABC-processor for the drying-racks:

  • You can control the quantity of the airflow for each and every drying-rack individually; if there is more humidity then you need more airflow.
  • There are two sensors for measuring temperature and relative humidity, and in this case, the first measures the ingoing, and the second measures the outgoing air.


Note: drying-racks for cannabis drying are designed so that they can be used in new drying rooms as well as in existing ones. Most importantly, it is possible to implement the ABC-processor in an existing drying room.

An ABC controller page of a drying rack