Sealed prototype machines are mainly used for powder production of raw materials for laboratory testing purposes. Such as coal, coke, gangue, limestone, various ores, etc.

The working mode of the laboratory prototype is vibration grinding. The maximum particle size of the ground material is less than 13 millimeters. The compressive strength of the ground material is less than 800kg/cm2.

The design of the laboratory prototype is reasonable, the structure is compact, the maintenance is convenient, and the operation is simple. It has been widely used in laboratory testing in the construction industry, metallurgical industry, mining industry, as well as coal, coking, chemical, non-ferrous metal smelting and other industries.

Functional characteristics of the laboratory prototype:

1. The sample size is uniform, the speed is fast, the work is reliable, and the representativeness meets the standard requirements.

2. Sample preparation does not require sieving and can be used directly, with fewer processes and high production efficiency.

3. The crushing chamber is designed with sealing, free from dust pollution, and meets environmental protection requirements.

4. Smooth operation, low noise, in compliance with safety production requirements.