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

When a vertical rotating arm is driven upward by a hydraulic or pneumatic cylinder (push type), moving a load against gravity, it creates high kinetic energy and torque that must be managed to protect equipment. At Shockbuffer, we offer precise industrial shock absorber selection and expert sizing of shock absorbers for these demanding applications. Our medium industrial shock absorbers are specifically designed to handle the upward rotational motion and resisting gravitational force, ensuring smooth deceleration, reducing vibration, and preventing mechanical damage. Choosing the right shock absorber for machinery keeps automated systems reliable, safe, and efficient.

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 Load Opposing Gravity

D = 0.060 m

p = 550000 Pa

Rc = 0.30 m

W = 70 kg

K = 0.70 m

RS = 0.60 m

ω = 3 rad./sec

α = 30°

s = 0.050 m

C = 100 /hr

I = 70 · 0.7  = 34 kg-m

T = 0.78 · 0.0602 · 550000 · 0.3  = 463 N

F = (463 - ( 70 · 0.7 · 0.7 )) / 0.6 = 714 N

E1 = 0.5 · 34 · 3  = 153 Nm

E2 = 714 · 0.050 = 36 Nm

E3 = 153 + 36 = 189 Nm

E4 = 189 · 100 = 18900 Nm/hr

VS = 0.6 · 3 = 1.8 m/s

We = (2 · 189) / 1.8  = 117 kg

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

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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  • Vertical lifting arms driven by cylinders to raise heavy parts or tools

  • Automated fixtures rotating parts upward for welding or assembly

  • Pivoting loader mechanisms pushing products to higher levels on a line

  • Material handling systems lifting pallets or containers upward by rotation

  • Robotic arms moving components into elevated positions against gravity

  • Packaging machinery where large flaps or gates are raised vertically

 

In each of these applications, a medium industrial shock absorber must be sized carefully to absorb the kinetic energy generated by the upward motion and load opposing gravity, ensuring controlled stopping and protecting machinery from excessive shock and wear.

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