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Epiroc Introduces New Tunnel Version of SB Hydraulic Breakers

Tue May 08, 2018 - National Edition
Epiroc


The new Tunnel versions are suitable for excavators in the weight class from 4.9 to 14.3 ton (4.5 to 13 t) and standard underground scalers. Service weights are 690 lbs. (315 kg) for the SB 302 and 990 lbs. (450 kg) for the SB 452.
The new Tunnel versions are suitable for excavators in the weight class from 4.9 to 14.3 ton (4.5 to 13 t) and standard underground scalers. Service weights are 690 lbs. (315 kg) for the SB 302 and 990 lbs. (450 kg) for the SB 452.

While incorporating the popular features of Epiroc's solid body (SB) breaker range, the new SB 302 and SB 452 Tunnel versions provide application-specific modifications that extend equipment lifetime and reduce overall operating costs in underground applications, according to the manufacturer.

Piston lifetime in the advanced Tunnel version is extended by a new piston in stainless steel, while bushing seat wear is minimized by a press-fit, one-piece bushing locked by an additional pin. An exchangeable wear plate protects the hammer body and durability is enhanced by heavy duty retainer bars and a locking pin.

The special tunneling tool with a collar supporting a robust front shield and dust cover minimizes the dust intake when working on overhead areas. Two restrictors are available which enable the performance of the hydraulic breaker to be adjusted for either traditional scaling operations or for more challenging rock breaking jobs.

Together these new features add up to less wear, extended lifetime and lower overall operating costs in scaling, tunneling and underground mining applications.

The new Tunnel versions are suitable for excavators in the weight class from 4.9 to 14.3 ton (4.5 to 13 t) and standard underground scalers. Service weights are 690 lbs. (315 kg) for the SB 302 and 990 lbs. (450 kg) for the SB 452.

For more information, visit www.epiroc.us.




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