DW single hydraulic prop is a constant resistance prop, which can be used with various top beams or as the main column. It can be used for general mechanized coal mining or coal mining face support plate, and also for comprehensive mechanized coal mining face end support or other temporary support.
DW single hydraulic prop and metal hinged roof beam are used for general mechanized mining face and fully mechanized mining face end or temporary payment roof in coal mine. It is suitable for working face with coal seam dip angle less than 25°. It can also be used for mining face with dip angle of 25°--35° when certain measures are taken. This series of single hydraulic prop has good stability and outstanding technical performance advantages. The single support height of the high-grade general mining working face of the coal mine is increased from 2.5m to 3.5m. The coal seam below 3.5m can achieve a full mining height at one time.
Maintenance and testing of DW single hydraulic prop:
1. Check the roughness of the live cylinder, external circular tolerance, assembly size of piston, coaxiality, surface coating, scratch and corrosion.
2. Test the roughness and tolerance, coaxiality, surface coating, scratch and corrosion of the inner hole of the oil cylinder.
3. Check the assembly size of piston, cylinder and cylinder.
4. Check the assembly size of the base body and oil cylinder.
