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Sizing Industrial Shock Absorbers for Cylinder-Driven
Vertical Rotating Arm (Push Type) with Gravity-Aided Load

In vertical rotating arm systems driven by hydraulic or pneumatic cylinders (push type), gravity can aid the downward motion, significantly increasing the kinetic energy that must be absorbed at the end of travel. At Shockbuffer, we offer precise industrial shock absorber selection and expert sizing of shock absorbers for these combined cylinder-driven and gravity-aided applications. Our medium industrial shock absorbers are specifically engineered to handle the dynamic forces created by these movements, ensuring smooth deceleration, reducing vibration, and protecting equipment. Choosing the right shock absorber for machinery is essential to improve safety, reliability, and longevity of production systems.

Formulae

I = W · K²

T = 0.78 · D · p · RC

F = (T + (W · K · sin α) )/ Rs

E1 = 0.5 · I · ω²

E2 = F · S

E3 = E1 + E2

E4 = E3 · c

Vs = RS · ω

We = (2 · E3) / Vs

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Example: Sizing Industrial Shock Absorbers for Cylinder-Driven Vertical Rotating Arm (Push Type) with Gravity-Aided Load

D = 0.060 m

p = 550000 Pa

Rc = 0.30 m

W = 110 kg

K = 0.70 m

Rs = 0.60 m

ω = 3 rad /sec

α =45°

s = 0.050 m

C = 100 / hr

I = 110 · 0.7  = 54 kg-m

T = 0.75 · 0.060  · 550000 · 0.30 = 446 N

F = (446 + ( 110 · 0.7 · 0.7 )) / 0.7 = 714 N

E1 = 0.5 · 54 · 3  = 243 Nm

E2 = 714 · 0.050 = 36 Nm

E3 = 243 + 36 = 279 Nm

E4 = 279 · 100 = 27900 Nm/hr

Vs = 0.6 · 3 = 1.8 m/s

We = (2 · 279 ) / 1.8   = 172 kg

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Cylinder-Driven Vertical Rotating Arm (Push Type) with Gravity-Aided Load

Model choosen -SBN-M33x1.5S50H3

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Application of Industrial Shock Absorbers

 

Typical shock absorber applications in this category include:

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  • Cylinder-driven pivot arms lowering parts or tools with gravity assistance

  • Push-type vertical loaders rotating heavy loads down to workstations

  • Automated lifting fixtures that rotate downward with help from gravity

  • Material handling arms driven by cylinders moving products from higher to lower levels

  • Assembly systems where fixtures tilt or rotate downward to present parts

  • Gravity-aided pivoting platforms lowering panels or components into place

 

In each of these applications, a medium industrial shock absorber must be carefully sized to absorb the combined kinetic energy from cylinder force and gravity assistance, providing smooth, controlled stopping and protecting mechanical structures from shock.

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