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Sistemas de oscilación libre

Tipo HSI

Los soportes oscilantes ROSTA tipo AB se han creado un buen nombre.

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The ROSTA Type AB oscillating mountings have created a good name for themselves as screen box suspensions in screening technology thanks to their high isolation effect, high level of lateral stability, security against overload and high resistance to corrosion.

For reasons related to the process, approximately 20 % of all screen and discharge chutes have suspended mounts under material bunkers and metering shafts. ROSTA Type AB oscillating mountings are also often used for the assembly of these vibration units, as a suspended screening machine can be directly connected to silos and bunkers using AB suspensions without having to organise complicated yoke constructions.

The new HSI suspensions (hanging screen) have a guide arm geometry that is designed for tensile loads. With ideal loading, the natural frequency of this suspension thereby sinks from its former 5.5 Hz to only approx. 3.5 Hz, which guarantees an isolating effect > 97 %. All HSI oscillating mountings are in stainless steel (AISI 304) and interchangeable with the blue HS oscillating mountings!

Customer benefits:

  • Direct installation under bunkers = No complicated yoke construction required
  • Low natural frequency of the suspension = Low residual vibrations in the silo structure and the building
  • High lateral stability = Short, controlled and safe run-out of the vibrating machine

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Descripción Art. No. Tipo Load capacity G [N] Natural frequency Gmin. – Gmax. [Hz] A A max. load B B max. load C D E F H K L N M Z Weight [kg] Note
Free oscillation systems Type HSI 15 07 321 101 HSI 15 150 - 400 5.2–4.7 99 125 53 42 45 ø7 50 65 3 10 40 25 52 35 0.8 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 18 07 321 102 HSI 18 300 - 700 4.5–4.0 127 159 69 56 60 ø9 60 80 3.5 14 50 30 67 50 1.5 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 27 07 321 103 HSI 27 500 - 1250 4.2–3.8 164 202 84 68 70 ø11 80 105 4.5 17 60 35 80 60 3.4 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 38 07 321 104 HSI 38 1200 - 2500 3.6–3.3 223 275 114 92 95 13 x 20 100 125 6 21 80 40 104 90 7.3 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 45 07 321 105 HSI 45 2000 - 4200 3.3–3.0 265 325 134 109 110 13 x 26 115 145 8 28 100 58 132 100 13.6 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 50 07 321 106 HSI 50 3500 - 8400 3.2–2.9 288 357 148 118 120 17 x 27 130 170 12 40 120 60 165 120 22.3 tensile load and cold flow compensation (after approx. 1 year).
Free oscillation systems Type HSI 50-2 07 321 107 HSI 50-2 6000 - 14000 3.2–2.9 288 357 148 118 120 17 x 27 130 170 12 45 200 70 250 120 35.8 tensile load and cold flow compensation (after approx. 1 year).
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