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Free Oscillation Systems

Type AB-HD

The oscillating mounting type AB-HD is the "Heavy Duty" version in the AB mount family of the ROSTA screen suspensions.

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The oscillating mounting type AB-HD is the "Heavy Duty" version in the AB mount family of the ROSTA screen suspensions. For example the AB-HD type 50-2 offers 40 % more load capacity compared to the standard version AB 50-2 (14′000 instead of 10′000 N) by a slightly higher natural frequency (f = approx. 2,7 Hz instead of 2,3 Hz).

The AB-HD screen mount is the ideal suspension for mining- and aggregate screen working under variable charging capacities and are less sensitive on possibly occurring overload situations. Furthermore, due to the high load capacity, these mountings are also predestined for screens submitted to impact loading situations (e.g. charged by front-end loaders).
All AB-HD oscillating mountings are also available in stainless steel (AISI 304) and interchangeable with the blue AB-HD oscillating mountings!

specifications & cad

ART NR.

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Description Art. No. Type 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 AB-HD 27 07 051 070 AB-HD 27 500 - 1250 4.8 – 3.1 215 182 59 78 70 ø11 80 105 4.5 17 60 80 60 2.0 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB-HD 38 07 051 071 AB-HD 38 1200 - 2500 3.6 – 2.7 293 246 79 106 95 ø13 100 125 6 21 80 40 104 90 4.9 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB-HD 45 07 051 082 AB-HD 45 2000 - 4200 3.3 – 2.5 346 290 98 130 110 13x27 115 145 9 28 100 58 132 100 9.0 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB-HD 50 07 051 083 AB-HD 50 3500 - 8400 3.2 – 2.4 376 313 105 141 120 17x27 130 170 12 40 120 60 165 120 15.1 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB-HD 50-1.6 07 051 084 AB-HD 50-1.6 4800 - 11300 3.2 – 2.4 376 313 105 141 120 17x27 130 170 12 45 160 70 210 120 19.5 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB-HD 50-2 07 051 085 AB-HD 50-2 6000 - 14000 3.2 – 2.4 376 313 105 141 120 17x27 130 170 12 45 200 70 250 120 23.0 * compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
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