Product description:

In the process of metallographic sample preparation, pre-grinding is an essential pre-process before polishing. Pre-grinding the sample first can improve the efficiency of sample preparation. In order to meet the needs of pre-grinding of various materials, the diameter of the grinding disc of this machine is larger than that of similar domestic products, and the rotation speed of the grinding disc is also different from that of similar domestic products. It is an excellent equipment for sample pre-grinding. 

Working principle of pre-grinding machine: First, clean water flows into the rotating grinding disc through the water pipe. At this time, the sandpaper floating on the water surface throws the water under the sandpaper out of the disc under the action of the centrifugal force of the rotating grinding disc, forming a vacuum. The atmospheric pressure presses the sandpaper tightly on the grinding disc, and pre-grinding can be carried out. When the grinding disc stops rotating, this effect is lost, and the sandpaper can be removed freely.

Main parameters:

1. Grinding disc diameter: double disc 230mm

2. Sandpaper diameter: 230mm

3. Dimensions: 740×700×320mm

4. Speed: 400r/min, 500r/min (630r/min, 780r/min customizable)

5. Motor: YSR7146, 0.55kW, 380V, 50Hz

6. Weight: 55Kg