The NAVCO^® BH 4" is a pneumatic piston vibrator designed to provide reliable and effective performance, even when exposed to severe adverse elements. The size and operating characteristics of the BH 4" make it ideally suitable for solving medium to heavy duty bulk material flow problems.

BH 4" Operating Characteristics  

Frequency	...
Impacting	2750 vpm
......Silent	1400 vpm
Air Consumption	...
.......Impacting	18.2 C.F.M. @ 50 psi
......Silent	18.2 C.F.M. @ 50 psi
Sound Pressure Level	...
.......Impacting	110 dbA
......Silent	83 dbA
Sizing Criteria	....
.......Hopper Capacity	50 - 100 tons
.......Wall Thickness	3/8" to 1/2"
.......Weight	105 lbs.

The BH 4" is available in 3 different models with several options for specific material flow problems.