JM-III aggregate accelerated polishing machine

Product Information

This instrument is suitable for simulating the polishing effect of car tires on road surfaces indoors. By accelerating the polishing of the aggregates used on the road surface, the anti polishing performance of the aggregates can be measured, providing scientific basis for selecting suitable surface aggregates to pave road sections with different friction coefficient requirements and for the rational development and utilization of stone resources. It also creates conditions for shortening the research cycle of anti-skid road surfaces and provides technical reference for the development of high-quality artificial aggregates. The accelerated polishing machine of this model is manufactured in accordance with the latest national industry standard JTG 3432-2024 "Code for Testing of Aggregates in Highway Engineering" T0321-2024 technical standard, and draws on the advantages of similar foreign models. The overall structure is compact, and the sand and water slides are uniform and accurate, making it an ideal model to replace imported similar products.

Product Structure:

1. Transmission mechanism: including motor, pulley, rubber wheel assembly, etc., used to transmit power and change speed ratio.

2. Road wheel device: used for installing 14 test specimens.

3. Sand sliding device: composed of a sand storage hopper and a bracket, used for storing abrasives and controlling sand flow.

4. Water supply system: including water storage brackets, water supply vessels, flow meters, and water pipes, used to control water volume.

5. Load adjustment mechanism: including handwheel and cam, used to support the counterweight and adjust the pressure between the rubber wheel and the road.

6. Weighting device: including lever, counterweight, and sheath, used to ensure the specified pressure on the road wheel.

7. Trial mold, trial mold cover: used for making polished stone specimens.

8. Electrical control device: used to control the required number of rotations and working time of road wheels.

Main technical parameters:

1. Power supply voltage: AC380V 50HZ [Pay attention to three-phase four wire]

2. Road wheel speed: 320 ± 5 revolutions per minute

3. Total pressure of rubber wheelset on road wheel test piece: 725 ± 10N

4. Rubber wheel: Φ 200mm width 44 ± 2mm hardness 69IRHD ± 3IRHD

Among them, the marked C rubber wheel is used for grinding coarse sand, and the marked X rubber wheel is used for grinding fine sand

5. Diamond sand: (30 brown corundum, 380 green silicon carbide)