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  • DR Pneumatic External High Frequency Roller Vibrators
  • 6 Models to choose from
  • High Strength Ductile Iron body
  • Economical
  • Dual roller design which produces high forces and frequencies and large amplitudes
  • Heavy Duty Design (Hardened steel shaft, rollers and end plates)
  • Permanent (DR Series) Mount Configurations
  • Ideal for the Precast, Concrete and Refractory Industry
Deca's DR Series Pneumatic External High Frequency Roller Vibrators impart high frequencies with high centrifugal forces at large amplitudes needed for the consolidation and compaction of Precast & Prestressed Concrete. These vibrators generate pressure waves that separate aggregate particles and reduce friction between them. This action releases entrapped air and therefore increases density. They are also ideal for Refractory compaction and as a Flow-aid device for Railcar unloading and the evacuation of dry bulk material in all types of bins and hoppers.

There is very little maintenance required due to its simple but rugged design - a single or dual steel roller rotating around a hardened steel shaft with one vane. These units have an operating range of 30 to 90 psi and require a Filter-Regulator-Lubricator.
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Item #

Frequency (Max)

Force Output (Max)

Air Consumption or CFM

Force Output Adjustment

Max. Material in Tapered Portion of Bin

Vibrator Weight

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DR-1600 N/A High - 18,000 (Max) N/A 2,000 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 20000 lb N/A 8.62 kg19 lb
DR-4400 N/A High - 16,000 (Max) N/A 3,200 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 32000 lb N/A 9.98 kg22 lb
DR-5500 N/A Moderate - 9,000 (Max) N/A 5,500 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 55000 lb N/A 16.78 kg37 lb
DR-6500 N/A Moderate - 7,500 (Max) N/A 6,500 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 65000 lb N/A 18.14 kg40 lb
DR-700 N/A High - 19,000 (Max) N/A 1,200 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 12000 lb N/A 8.16 kg18 lb
DR-7800 N/A Moderate - 5,000 (Max) N/A 7,800 lb N/A High N/A Controlled Through Air Pressure Regulation N/A 78000 lb N/A 20.41 kg45 lb
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