SB 452 T
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        Hydraulic breaker SB tunnel version
Take these harsh conditions with our underground hydraulic breakers.
The SB tunnel version is perfectly adopted for scaling, wall & roof profiling and other tough underground jobs.
SB 552 Tunnel
            Technical specifications
            
                
                    
                    
                        
	
	
            
        
    
| Carrier weight class ¹ | 9 t - 15 t | 
| Service weight ² | 557 kg | 
| Working tool diameter | 100 mm | 
| Working length of tool | 485 mm | 
| Hydraulic input power, max | 21 kW | 
| Oil flow | 85 l/min - 115 l/min | 
| Operating pressure | 100 bar - 110 bar | 
| Impact rate | 900 blows/min - 1 000 blows/min | 
| Sound power level, guaranteed ³ | 126 dB(A) | 
- Weights apply to standard carriers only. Any variances must be agreed with Epiroc and/or the carrer manufacturer prior to attachment.
- Attachment with standard working tool & average-sized adapter plate.
- EN ISO 3744 in accordance with directive 2000/14/EC
Full details of measurement are available in the safety and operating instructions
More information
SB 552 Tunnel
SB 552 Tunnel
                    
                    
                        Maintenance-free high-pressure accumulator with a patented diaphragm support delivers consistent performance and high reliability.
                    
                
                
                    
                    
                        The special tool together with the front shield & dust cover minimizes dust intake.
                    
                
                
                    
                    
                        The unique Solid Body concept eliminates common parts to enable high durability and a slim, compact, lightweight design.
                    
                
                Underground light breaker SB 552 T
Underground light breaker SB 552 T
                    
                    
                        Integrated nozzles for water spraying.
                    
                
                
                    
                    
                        Exchangeable restrictors to adopt performance to the job requirements.
                    
                
                
                    
                    
                        An exchangeable wear plate increases Solid Body lifetime.