騒音低減と環境保護

SMAC Moving Coil Actuators are an excellent option to reduce the audible (dB) noise, as an alternative to pneumatic devices. Pneumatics not only make a great deal of noise, but they are also not environmentally “friendly” due to air consumption, noisy compressor and hydraulic fluid leakage, and ongoing maintenance requirement.

Noise Laws in the Manufacturing Industry

Noise Limits in dB
  Italy France Austria England Sweden USA China
Maximal sound level limit 87
dB(A)
87
dB(A)
85
dB(A)
87
dB(A)
85
dB(A)
90
dB(A)
85
dB(A)
Half-level of sound - 3 dB 3 dB 3 dB 3 dB 5 dB -
  Denmark Norway Netherlands Switzerland  Spain Finland   
Maximal sound level limit 85
dB(A)
85
dB(A)
85
dB(A)

85
dB(A)

 87
dB(A)

87
dB(A) 
 
Half-level of sound 3 dB   3 dB    3 dB 3 dB 
 

Source: Silvent (http://www.silvent.com)

SMAC actuators options are “low-noise” actuators. They are also environmental-friendly as they use low voltage.

In an internal study, SMAC Moving Coil Actuators showed evidence of a 50% reduction in decibels generated by moving coil actuators versus traditional pneumatic actuators.

People who work in a traditional production environment, often accept noise pollution as a necessary occupational hazard. However, evolving moving coil technology is making strides in noise control/reduction. Pneumatics range from 100-120 dBA. SMAC's team averaged this to 110 dBA for the study. (As a point of reference, shouting directly into someone’s ear is rated at 110 dBA.) By comparison, SMAC Moving Coil Actuators came in at 40-60 dBA, depending on conditions, averaging at 50 dBA, literally less than half of the noise produced by pneumatics. This level of noise is comparable to a quiet library or office environment.

While there are methods to muffle pneumatic actuators, few will reduce noise generated to the 40-60 dBA range measured in SMAC Moving Coil Actuators.

The low noise generated by SMAC actuators is attributed to its airless operation. There is no compressed air generation required with SMAC. At the heart of all SMAC actuators is the moving coil, also described as a voice coil actuator. The essential principle is the same as a permanent magnet loudspeaker. The voice coil sits in a strong magnetic field, and by passing a current through the coil a force is generated in either direction.

Low Voltage

Low voltage and low current bonus 24-48 volts and less than a few amps results in both a safe system to commission/run and efficient use of power with the total cost to operate in the area of dollars per year.


 
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