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Steel profile grilles are available in roll-up and linear models, and feature high load bearing capacity. They are particularly suitable for public buildings, halls, car showrooms, corridors, etc.

Each slat is separated by steel spacers and the entire product is lacquered in the same colour, as standard RAL 9006 (grey) powder coating. Other RAL colour chart colours are, however, available on request.

Nerez mrizky - profil

Roll-up model

Ocelove mrizky - rolovaci provedeni_1

For steel roll-up grilles, each slat is connected by springs and spacers in the same colour as the grille.

Informace    The grille can be rolled up for easier handling.

Linear model


For linear grilles, each slat is connected by bolts and spacers in the same colour as the grille.

Informace    Linear steel grilles 400mm in width are supplied with supports as standard. Other widths are self-supporting.


Code PM-xx/14 PM-xx/16 PM-xx/20 PM-xx/26 PM-xx/32 PM-xx/34 PM-xx/40
Width - nett (mm) 128 148 188 248 308 328 388

Tolerance +0–1.5 mm. Code width is derived from trench heater width.

Grille airflow

alu wood steel stainless Thin  Cross
63% 55% 60% 60% 63% 58%

Load bearing capacity

     Grafy PM

In load bearing capacity testing, grille slats are placed on two supports and weighed down in centre.
For wooden slats, values are given up to the fracture point of the first fibre. Metal slats are measured up to the point of irreversible deflection.

Decorative frames are available as standard in aluminium with silver, dark bronze or light bronze elox finishes. Frames may also be lacquered (powder coated) using colours from the RAL colour chart. Frames are in every case supplied as a component of trench heaters, and the type required must be specified when ordering in the Order Code. Where  trench heaters are finished with a hem, the hem is of the same material as the casing.

U-frame - standard

F-frame - optional

rámeček U rámeček F


Example order code: PM-100/26-S6R0

Floor grille length 100 cm, width 26 cm, steel model, RAL 9006 colour (grey) lacquered, roll-up, for single trench heater without alteration. Grille measurement, given in the order code, corresponds with the measurement of the respective trench heater. Nett dimension of the grille is available upon request.

Floor Grille     Length/Width (cm)   Grille material Grille Colour Grille type Grille ending type    
P M   - 100/26 - S 6 R 0    







S steel

6 RAL 9006
9 other RAL colour

R roll-up

L linear

0 grille for single trench heater

1 grille for trench heater with lowered face - input side

2 grille for trench heater with lowered face - opposite input side

3 grille for trench heater with both sides lowered

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