Sharing the main technical specifications of the rotary compactor.

　　The gyratory compactor is a core instrument used in the design of asphalt mixtures. Typically, it is employed to prepare specimens for determining the mechanical and volumetric properties of hot-mix asphalt mixtures. Operating at a constant compaction pressure of 600 kPa, with a compaction angle of 1.25° and a rotation speed of 30 rpm, the gyratory compactor simulates the in-situ rolling conditions of a road roller. The resulting specimens closely resemble actual pavement surfaces in terms of density, aggregate distribution, and structural characteristics. The four-column frame of the gyratory compactor is exceptionally stable and robust. Vertical stress is measured via a load cell, allowing for precise control throughout the compaction process. Moreover, the rotary motion is servo-controlled, ensuring that the rotation angle is accurately maintained during compaction, independent of the applied load. Compared to other similar products, this gyratory compactor stands out for its unique capability to measure shear stress during the compaction process.

　　Main Technical Specifications of the Rotary Compaction Tester

　　1. Height: 190 cm

　　2. Weight: 370 kg

　　3. Shipment weight: 410 kg

　　4. Mold weight: 7.4 kg

　　5. Outer diameter dimensions of the loading indenter: φ149.65 mm ± 0.10 mm, φ99.65 mm ± 0.10 mm

　　6. Pressure range: Continuously adjustable from 200 to 1000 kPa

　　7. The uniform pressure applied by the loading device to the bottom surface of the test mold: Initially, during the first 0 to 5 tests, the pressure shall be 600 kPa ± 60 kPa; after more than five tests, the pressure should be maintained at 600 kPa ± 18 kPa.

　　8. Number of rotations: Forward rotation: 0–999 times; Reverse rotation: 0–999 times

　　9. Range of rotary compaction shear angle: 0.5° to 2.0°, incrementing by 0.01°. Before leaving the factory, the compaction reference point is calibrated, enabling an effective external angle of 1.25° ± 0.02° and an internal angle of 1.16° ± 0.02° (μ65288X and μ65289X).

　　10. The lateral displacement sensor has a measurement range of 0 mm to 200 mm, an accuracy of 0.1%, and a resolution of 0.05 mm. The rotary encoder has an accuracy of 0.01 mm and a resolution of 0.01 mm.

　　11. The indication error for static straightness measurement of the lateral displacement device is 0.1 mm.

　　12. Mold trial dimensions: Inner hole diameter: φ150 - 0.10 mm; φ100 - 0.10 mm

　　13. Rotational speed: 30 ± 0.05 (r/min)