Sizing Industrial Shock Absorbers for
Rotary-Driven Horizontal Mass Motion
When a mass moves horizontally under the action of a rotary actuator or similar drive, it produces kinetic energy that must be controlled to ensure smooth stopping and protect machine components. At Shockbuffer, we specialize in industrial shock absorber selection and precise sizing of shock absorbers for these rotary-driven systems. Our miniature industrial shock absorbers are designed to handle rapid, repetitive horizontal motions of smaller masses, reducing vibration and preventing mechanical wear. Choosing the right shock absorber for machinery is essential for improving process stability, safety, and equipment longevity.
Formulae
E1 = 0.5 · W · v
E2 = 0
E3 = E1 + E2
E4 = E3 · c
Vs =( A⋅RS )/ t
We = (2 · E3) / Vs
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Example: Sizing Industrial Shock Absorbers for Rotary-Driven Horizontal Mass Motion
K = 0.762 m
W = 408 kg
A = 90° = 1.57 rad
t = 3 sec
RS = 0.7 m
v = 0.4
s = 0.0254 m
C = 100/hr
E1 = 0.5 · 408 · 0.4 = 33 Nm
E2 = 0
E3 = 33 + 0= 33 Nm
E4 = 33 · 100 = 3300 Nm/hr
Vs = ( 1.57 · 0.7 )/ 3 = 0.37 m/s
We = (2 · 33) / 0.37 = 482 kg
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Applications of Industrial Shock Absorbers
Typical shock absorber applications in this category include:
Small pick-and-place units moving parts horizontally between stations
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Rotary actuators shifting fixtures or tools along a short horizontal path
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Horizontal indexing mechanisms in packaging and assembly lines
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Compact transfer arms in electronics or precision equipment manufacturing
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Rapid side-to-side motion systems in testing or inspection machines
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Horizontal pushers that reposition components gently but quickly
In each case, a miniature industrial shock absorber must be carefully sized to absorb the kinetic energy of the moving mass, ensuring gentle deceleration and protecting machinery from impact and vibration.
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