TR 330 DEEP GROOVE® DRUM ASSEMBLY

GROOVING DRUM FEATURES COMPARISON

 
APPLICATIONS DEEP GROOVE® MINI GROOVE® 20 MINI GROOVE® 26 PLANING
Blade requirements to achieve grooving pattern 4 GROOVES
12  BLADES
20 GROOVES 
20 BLADES
26 GROOVES 
26 BLADES
35 GROOVES 
35 BLADES
NEW concrete floors: alleys & crossovers YES NO NO NO
Reconditioning crossovers YES OPTIONAL YES NO
Resurface flat concrete floors per conditions below •        
• Little or no existing groove YES NO NO NO
• Narrow grooves // less than .75in / 19 mm OPTIONAL YES YES NO
• Wide spaced groove // greater than 2.50 in / 64 cm NO YES YES NO
• V-groove NO NO YES OPTIONAL
• Diagonal grooves NO NO YES OPTIONAL
Resurface cobblestone concrete floors with shallow crown NO NO YES YES
Resurface cobblestone concrete floors with high crown NO NO NO YES
Resurface uneven or unstable concrete floors NO NO NO YES
Resurface flat concrete floors with too many existing grooves NO NO YES YES
Ineffective grooves (too narrow, too far apart, too shallow) NO NO YES - BETWEEN GROOVES OPTIONAL
Slatted floors NO OPTIONAL YES NO
Rough or pitted concrete floors NO NO NO YES