Characteristics: Moderate life, rugged construction, linear force output
Description:
A steel piston reciprocates in a cylinder housing at high frequencies
and impacts on harden end plates. This simulates the blows of a hammer
and causes any object attached to the vibrator to vibrate at its
natural frequency. Internal porting allows the piston to reciprocate
without the need for external valves other than to control air supply.
Force output is linear. Frequency and force can be adjusted by varying
the air pressure.
Variation of the piston vibrator design:
- piston impacts on one end only
- piston is fitted with hard rubber tips to reduce noise of metal to metal impact
- piston reciprocates without impacting to reduce noise
- piston and housing are ported so there is only one blow each time a 3-way valve is energized
MODELS:
- Impacting - simulates a high frequency hammer; transfers the maximum force to its mount; air usage is conservative; noise levels are high.
- Quiet Impacting - rubber tipped models deliver impacting force close to that of a standard BV-Series vibrator, but produces up to 25% less noise.
- Non-Impacting - quietest of the piston models, but considerable reduction in force output; non-impacting model requires at least one size larger than an impacting model to compensate for loss of energy transfer.
- Timed Impact - produces one impact at a time; frequency of impacts is controlled by built-in air timing mechanism; extremely low air consumption; lower noise exposure than continuously impacting piston vibrator.
- Precision Linear - similar to non-impacting piston vibrator except tolerance between piston and cylinder is reduced to further minimize air consumption; lubricated and clean air supply required because of close tolerances; especially suitable for feeding parts or powders down chutes or as a pneumatic drive on small vibratory feeders.
- Extended Piston Oscillator - one end of piston extends through cylinder; exposed piston end is tapped to allow multiple weights to be attached thereby changing amplitude output; amplitude can be controlled independent of frequency; for feeding parts and powders down chutes or as a pneumatic drive for vibatory feeders.
RECOMMENDATION: Intermittent operation (4 to 8 hours/day when considering energy usage and life. For continuous duty, use the VFP, VFPL, VLB, or VOA/VOS series which are more energy efficient.
Return to Top ▲