Rotary Compactor This instrument is designed and manufactured based on the requirements specified in the People's Republic of China’s transportation industry standards JT/T 724-2008 “Rotary Compactor,” JTG E20-2011 “Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering”—particularly T 0736-2011 “Method for Fabrication of Rotary Compacted Specimens of Asphalt Mixture (SGC)—as well as ASTM D6925 standard of the American Society for Testing and Materials and AASHTO T312 standard of the American Association of State Highway and Transportation Officials, and incorporates advanced technologies from rotary compactors around the world through a comprehensive approach. It is suitable for compacting cylindrical specimens of asphalt mixtures, emulsified asphalt, and cold-recycled mixtures with diameters of φ150 mm or φ100 mm (purchased separately) using an electro-pneumatic rotary compaction method. Key technical features include: 1. The structure is made of high-hardness, premium-grade steel to ensure precise angle control. 2. Equipped with electro-pneumatic servo-controlled adjustment. 3. Features a color touchscreen control system that can be directly connected to a computer. Through the interface, various curves and charts can be displayed, and seamless connection with the touch screen allows for integrated instrument control. 4. Easily set test parameters such as rotation compaction angle, compaction pressure, rotation speed, and number of rotations. 5. During compaction, it can measure and display in real time critical parameters including the rotation angle of the mold, compaction pressure, specimen density, and number of rotations. 6. Allows for saving, plotting, and printing of compaction test results. 7. Offers two operation modes for completing compaction tests: (1) Pre-set number of rotations; (2) Pre-set target height. 8. Interface configuration: 1 USB port and 1 RS232 interface. 9. Integrated built-in demolding device. 10. Optional heating and insulation function for the mold rotation chamber. 11. Suitable for compaction tests involving emulsified asphalt and cold-recycled mixtures.

The rotary compactor features a more user-friendly interface design. The rotary compactor is equipped with an 8-inch touch screen that serves as the window for setting instrument technical parameters. The interface is clear and highly visible, making human-machine interaction convenient. The system boasts comprehensive maintenance functions and high reliability. It employs a PLC control system and includes a reserved computer interface, enabling real-time collection of specimen pressure and displacement data during testing via a computer. Based on user requirements, corresponding test curves can be generated. During compaction, the rotary compactor applies a vertical stress (typically 600 kPa) to asphalt mixtures of known mass placed in molds with inner diameters of 100 mm or 150 mm, using end plates at both ends. The upper and lower end plates remain parallel and horizontal, while the mold’s longitudinal axis rotates at a fixed angle relative to the vertical direction. Throughout the compaction process, the specimen height is automatically measured, and the mixture’s density and void ratio are calculated in real time. During compaction, test data are displayed on the screen in both graphical and tabular formats and are stored in a format compatible with Excel. Operators can choose to compact the sample until a specified number of rotations is reached, or until the mixture reaches a specified density or void ratio. The rotary compactor represents a new-generation rotary compaction machine that allows operation using either internal or external rotation angles without the need for calibration. The rotation angle can be adjusted to the desired value, ensuring that the rotary compactor is fully capable of meeting diverse future requirements. This equipment can be equipped with load sensors to measure the force generating sample rotation, as well as a shear measurement device. The internal angle measurement is standardized using Pine’s AFLS1 internal angle measurement device. Briefly summarizing the product features of the rotary compactor: The rotary compactor uses a German Siemens PLC as the core of its control system. The system has comprehensive maintenance functions and is capable of operating under complex working conditions. The rotary compactor employs an industrial touch screen as the human-machine interaction interface, featuring a clear and highly visible display. It adopts a Chinese-language interface, making parameter settings simple and allowing real-time display of process data, such as the number of rotations, displacement data, and density change curves. A computer interface is provided, enabling users to download test data from the computer and store/print it in Excel-compatible formats, including spreadsheets and trend charts. The rotary compactor is designed and manufactured based on imported equipment. Its key components—such as the pressure device, sensors, and variable-frequency motors—are all original imported products. For more information about the rotary compactor, we encourage you to continue following our company!

The asphalt ductility tester mainly consists of a mechanical tensile device, a temperature control unit, and an LCD display section. 1. The mechanical tensile device is driven by a low-speed motor and moves from one end to the other via a transmission system comprising gear racks and gears. The transmission mechanism is also equipped with a variable-speed device, enabling two different tensile speeds to be achieved.

The rotary compaction apparatus features a frame made of high-hardness, premium-grade steel, ensuring precise angular control. Pneumatic servo control is achieved via a precision pressure regulator, and a linear displacement sensor measures the height. The rotational motion is generated by a high-precision centrifugal system; simple settings guarantee consistent rotation angles and accuracy.

The operating instructions for the asphalt softening point tester are as follows: Place the metal ring on a glass plate coated with a glycerin-talc powder separator (glycerin : talc powder = 2:1). Heat the asphalt (for petroleum asphalt, heat to ≤ the estimated softening point + 90℃; for coal asphalt, heat to ≤ the estimated softening point + 50℃). Then, pour the heated and thoroughly mixed asphalt into the metal ring, ensuring that the asphalt level slightly exceeds the surface of the ring.