2L Thin Coal Seam Top-Walking Roof Support (Patent No: 200420000157.6)

 

This 2L top-walking roof support is specially designed for thin coal seams and the minimum mining height is 0.8m. The product can be easily moved by pulling the lever handle. It can also be used in the mine with the mining height greater than 0.8m, especially in mines with large variation in seam thickness. Through top coal caving and other measures, coal with the local thickness of ten plus meters can be excavated on one time.

The leg can be equipped with a floating type disk on the bottom to prevent the leg bottom being broken. The inclination of the working face had better be less than 30°。

Support Types include Machine mining type, blasting mining type, centralized control type, liquid injection gun control type, slipping protrusive beam type, and flipping protrusive beam type, hydraulic control type, gangue blocking type.

 

 

■Technical Parameters   ■Standard Compliance: MT458-1995