top of page

Sizing Industrial Shock Absorbers for
Torque Driven Swinging Arm  ( Uniform Mass Distribution )

Swinging arms driven by torque motors or pneumatic actuators need controlled deceleration at the end of their stroke, especially when the arm has a uniform mass distribution. At Shockbuffer, we offer precise industrial shock absorber selection and accurate sizing of shock absorbers to manage the rotational kinetic energy safely. Our miniature industrial shock absorbers are engineered for fast, repetitive cycles in compact systems, helping to protect equipment, reduce vibration, and ensure quiet operation. Choosing the right shock absorber for machinery improves process reliability and extends the service life of moving components.

Formulae

E1 = W · v  · 0.5 = 0.5 · I · ω

E2 = (T · s) / R

E3 = E1 + E2

E4 = E3 · c

vD = (v · R) / L = ω · R

We = (2 · E3) / vD

2

2

2

Example: Sizing Industrial Shock Absorbers for Torque Driven Swinging Arm(Uniform Mass Distribution)

I = 50 kgm2

ω = 1 rad/s

T = 500 Nm

s = 0.025 m

L = 1 m

R = 0.4 m

c = 1000 /hr

E1 = 0.5 · 50 · 1  = 25 Nm

E2 = (500 · 0.025) / 0.4 = 31.7 Nm

E3 = 25 + 31.7 = 56.8 Nm

E4 = 41 · 1000 = 56750 Nm/hr

vD = 1 · 0.4 = 0.4 m/s

We = (2 · 56.8) / 0.4   = 709.4 kg

Torque-Driven Swinging Arm (Uniform Mass Distribution)

Model choosen - SBN-M25x1.5S25H4

2

2

Applications of Industrial Shock Absorbers​


Typical shock absorber applications in this category include:

​

  • Small rotary arms in pick-and-place systems driven by electric motors

  • Torque-driven pivoting arms in sorting or inspection equipment

  • Rotary gates or flaps used to guide parts along conveyors

  • Compact swinging arms in packaging machinery that operate at high speed

  • Light-duty index arms on assembly lines with balanced weight distribution

  • Test rigs with controlled swinging elements requiring smooth stops

 

In each case, a miniature industrial shock absorber must be sized to handle the kinetic energy from the torque-driven motion, ensuring smooth deceleration and protecting mechanical systems from excessive shock and wear.

Technical Query Form

DOWNLOAD

Have more questions? Email us at info@shockbuffer.com

bottom of page