Tray Types

​2 basic types of ebb/flow bench trays tops are produced, called “type 1” & “type 2”.

Both types are produced in sizes up to 6230 x 1720 mm, and as a standard you can choose between 1 or 2 valve sumps per tray. It is of cause possible to place a sump in an alternative spot, and other special requests as needed. Please contact us so we can discuss the possible solutions.​

Type 1

Type 1 trays are the known Stål & Plast trays with large along-side-running channels which are connected with smaller crossing channels. Look at the cross section in the type 1 below.

Cross secation of a Type 1 tray.

​Type 1 is the well known tray with large drain channels alongside and smaller drain channels across. Type 1 can be delivered in widths from 1400 to 1720 mm, plus in lengths from 2500 to 6240 mm, in the width by 5 mm intervals, the length 10 mm. That makes a total of 23.936 different sizes.

Besides all there variations, there is a possibility of choosing the trays with valve sump in one or both ends. Further it is possible to have the valve sump placed in the middle of the tray, or in other places according to needs and wishes. Contact us for further information regarding special wishes.

The unique design of drainage channels is produced in such way, that the "border-effect" with a dry culture alongside the bench tray (caused by high evaporation level) is minimized, by ensuring a 2 mm higher water level & therefore a longer watering time for the culture along the edges. The result is a very uniform culture. See the drawing which illustrates the principle.

​Type 2

Type 2 trays are a new type of trays with only alongside running channels, see the drawing below.

​Cross secation of a Type 2 tray.

​Type 2 is a new alternative to the well known type 1, where the drainage channels only are placed alongside the tray. The channels are smaller, but the amount has been increased compared to type 1 which ensures the same good quality of water distribution and draining. It makes type 2 suitable for cultivation in small pots. Furthermore it makes the cleaning easier, as the omission of the cross channels makes it easier to sweep and wash the dirt off the bench trays.

Type 2 is delivered in the widths from 1200 to 1720 mm, lengths from 2500 to 6230 mm, in the width by 5 mm intervals, the length 10 mm. That all together makes 37.300 different sizes. Type 2 is delivered standard with valve sump in one or both ends. Furthermore can type 2 also be delivered with valve sum in the middle of the tray, or in other places needed. Contact us for further information or special wishes.

Like the type 1 trays, type 2 is delivered with the unique design of drainage channels which minimizes the "border-effect" with dry culture alongside the bench tray rims. The border-effect is minimized by ensuring a 2 mm higher water level & thereby a longer watering time for the cultures along the edges which results in a more uniform culture. See the drawing (shown with type 1 tray).

About us

Stål & Plast A/S has been manufacturing Ebb & Flow bench trays in high impact polystyrene (HIPS) since 1984.

​Stål & Plast A/S​

Industrivej 19 DK-5750 Ringe

Fax: +45 6262 3611

CVR: ​11760074