Technical Data

Model 352:

  • Design Height: 340 mm
  • Effective Area at 7 bar: 370–652 cm²
  • Force at 3–7 bar: 9.42–29.14 kN
  • Spring Rate: 94–188 kN/m
  • Natural Frequency: 1.27–1.44 Hz
  • Weight: 8.84 kg
  • Force to Collapse (at 0 bar): 900 N

Model 313:

  • Design Height: 330 mm
  • Effective Area at 7 bar: 507–890 cm²
  • Force at 3–7 bar: 13.81–40.27 kN
  • Spring Rate: 137–296 kN/m
  • Natural Frequency: 1.35–1.46 Hz
  • Weight: 8.84 kg
  • Force to Collapse (at 0 bar): 205 N

Model 333:

  • Design Height: 375 mm
  • Effective Area at 7 bar: 492–864 cm²
  • Force at 3–7 bar: 12.82–40.04 kN
  • Spring Rate: 115–239 kN/m
  • Natural Frequency: 1.22–1.35 Hz
  • Weight: 11.16 kg
  • Force to Collapse (at 0 bar): 289 N

AIRSTROKE: Triple Convolution Air Spring

Firestone Triple Convolution air bellows are designed for vibration isolation and actuation applications. These bellows provide variable force and stiffness at different pressures and are suitable for industrial applications such as positioning, load compensation, and damping. The three-convolution design allows for a greater range and higher load capacity.

Advantages

  • Variable force and stiffness depending on pressure
  • Three-ply construction for higher load capacity
  • Suitable for static and dynamic applications
  • Standard mounting options with blind nuts and aluminum or steel bead rings
  • Available in various sizes and configurations