BB4940/R Breaker boom

Sandvik BB4940R breaker boom is typically used in quarries and mines to improve the productivity of stationary crushers by feeding material into the crusher and by raking the hopper area.

Medium range booms are designed to endure tougher duty cycles and can also be used in more demanding applications, such as underground grizzlies. The triangular boom design of Sandvik medium range booms optimally combines a light weight with a high capacity. The circular shape of the boom pedestal effectively optimizes the stress distribution and foundation structures.


  • Stationary crushers
  • Grizzlies
  • Gyratory crushers


  • Optimized and robust design for best usability and longer service life
  • Round pedestal for structural strength and minimal footprint
  • Shock absorbing pedestal mounting for minimal vibrations
  • Arctic steel option for superior usability in extreme cold climates
  • Suitable breakers from Medium Range BR1533 and up
Technical data
BB4940 BB4940R
Weight, kg 7,900 6,350
Maximum reach, m 11.4 11.6
Nominal horizontal reach (H), m 9.2 9.4
Nominal vertical reach (V), m 7.8 7.6
Swing, ° 170 360
Base diameter, m 1.86 1.40
Recommended breaker type BR2155, BR2577 BR2155, BR2577
Recommended power packs HA37, HA45 HA37, HA45