Gyratory Compactor

Gyratory Compactor is used to simulate and reproduce the real compaction conditions in actual road paving operations to determine the compaction characteristics of asphalt and to prepare cylindrical specimens that can be used to test the various properties of asphalt mixtures.

Working Principle
Gyratory Compactor adopts electric loading mode and does not require external air compressor. During the compaction process, the specimen is simultaneously subjected to the rotary action and the vertical resultant force applied by a mechanical head, thereby simulating and reproducing the on-site compaction conditions during the paving process and ensuring the compaction quality of the specimen. The specimens are particularly suitable for the research, development and verification of new asphalt mixtures such as Superpave and SMA.

The Gyratory Compactor produces asphalt specimens that best predict long-term pavement performance. This information is not attainable from Marshall hammers or any other laboratory compaction equipment. Automatically measuring the specimen height during consolidation, produces a densification graph that the designer can use to produce the best possible paving mixture. It is equipped with multiple mould sizes and an internal angle calibration device.

STANDARDS COMPLIANCE :

• COMPLIED AS PER AASHTO T312, EN 12697-31, ASTM D6925

Construction / Design :

• The high-rigidity structural steel frame ensures the stability and anti-deformation ability of the equipment while optimizing the weight. It is an ideal choice for mobile laboratories or space-constrained environments.
• It adopts servo motor.
• A coaxial high-precision pressure sensor (0.1% FS) is used for control to ensure the accuracy and stability of the vertical compaction force.

Operation and Control :

• Operation can be done on the touch screen, test data can be exported to PC through USB interface.
• The internal angle of gyration is continuously adjustable from 0.7 to 1.4 to meet the requirements of different standards (default setting is 1.16).
• The compaction height and compaction circles can be precisely controlled.

Loading method :

• Electric

Load capacity :

• 25 kN

Pressure sensor range :

• 0~30 kN

Pressure sensor accuracy :

• 0.1 %FS

Specimen size :

• 150mm - (90200)mm - 100mm(90125)mm

Test termination conditions :

• Specimen height / Number of gyrations

Speed of gyrations :

• 30 r/min

Number of gyrations :

• 0~999

Range of internal angle :

• 0.7 to 1.4, default setting 1.16

Data output :

• USB

Power supply :

• 220V-10V 50Hz

Total power :

• 1200W

Dimensions :

• 450-615-1140 mm

Weight :

• 100 kg

Spare Parts & Accessories :

• 150 mm test mould assembly (standard)
• 100 mm test mould assembly (optional)
• 150 mm permeable test mould assembly (optional)
• Internal angle calibration device (optional)

• The robust design, precise control and high-quality components ensure the high reliability and repeatability of the equipment in long-term continuous operation and large-scale sample testing.
• The high-performance electric actuator only requires a standard single-phase power supply, completely eliminating the need for bulky and noisy external air compressors, significantly reducing operating noise and improving the laboratory environment.
• The equipment records complete data and supports USB export for subsequent analysis.
• During the compaction process, relevant curves such as "pressure-gyrations" and "height-gyrations" are displayed in real time to facilitate instant monitoring and process analysis.
• The transparent glass door makes it easy to observe the compaction process while ensuring safe operation. It can be slid to facilitate the quick loading and unloading of the test mould.

Optional Features

• The integrated demoulding device can significantly simplify the sample demoulding process and improve efficiency (optional).