Controls Group Advanced research gyratory compactor Servopac Advanced research gyratory compactor Servopac
Asphalt/bituminous mixture

Advanced research gyratory compactor Servopac

  • Download:
EN 12697-10 | EN 12697-31 | AASHTO T312 | ASTM D6925 | AS 2891.2.2
Main features
  • User defined settings of axial stress, gyratory angle and speed of rotation
  • Measures the shear stress during every gyratory cycle
  • Users can set the desired compaction parameters from either the optional hand-held control pendant or a Windows PC
  • Four column loading frame design provides superior stability
  • Designed for easy specimen insertion, extraction and user safety with the integrated specimen extruder
  • Robust and reliable to withstand any laboratory environment
  • Produces large cylindrical specimen with diameters of 100 or 150 mm and heights of 50 to 170 mm
  • Requires only air and power to operate
General description
General description
The research specification Servopac is a fully automated, servo-controlled gyratory compactor designed to compact asphalt mixes. Compaction is achieved by the simultaneous action of static compression and the shearing ation resulting from the mould being gyrated through an angle about its longitudinal axis.

The Servopac allows you to set the required axial stress, gyratory angle and speed of rotation therefore enabling it to meet all the international gyratory compaction Standards. It surpasses the requirements of AASHTO, ASTM, and AS Standards.

The Servopac can be used as part of your Superpave performance based testing program.

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Technical specifications

  • Vertical force: 0 to 20 kN +/- 100 N (with 1000 kPa air supply)
  • Gyratory angle: 0° to 3° +/- 0.02°
  • Gyrations/min: 3 to 60 +/- 0.1 gyrations
  • Number of gyrations: 0 to 999 (user definable)
  • Specimen height: 50 to 170 mm 
  • Air supply: clean dry air, 5 litres/second, minimum
  • Operating pressure: 800 to 1000 kPa 
  • Dimensions (h x d x w): 1970 x 776 x 450 mm
  • Weight: 250 kg

Ordering info

Servopac, IPC Global advanced Research Gyratory compactor.
110-230 V, 50-60 Hz, 1 ph


Personal computer wit IPC global UTS test software loaded

Control pendant

Servopac 100 mm mould assembly

Servopac 150 mm mould assembly

Servopac angle verification kit including dial gauge

Servopac calibration spacers kit including spacer 200 mm, spacer 50 mm, spacer 116.7 mm three angle calibration spacers and three angle calibration gauges

Pneumatic filtration kit - Wall mount 12 bar