The design of STAM mounting bases for KROS, KROV, KROM and OZA-R radial roof fans is constantly being improved. 

The STAM model range is represented by models of mounting bases for various purposes: 

• STAM 100 is the simplest and most cost-effective series of bases without thermal insulation of the walls; 
• STAM 200 - series for general purpose industrial fans with thermal insulation; 
• STAM 211 - special series with built-in GMK valve; 
• SТАМ 310, SТАМ 360 - special series for KROM fans.