DN single hydraulic prop has large working stroke and low safety management cost. The supporting strength is high, and the safety and stability are good. Leakage is easy to find, with high safety and reliability. Long service life and easy operation and maintenance. It is widely used as a support equipment for coal mine tunnels and working faces. Due to the different height of the support surface, the lifting height of the props is limited. In order to increase the support height of the hydraulic prop, it is generally adopted to set an extension section at the lower part of the prop.
Disadvantages Of DN Single Hydraulic Prop Connection
Although there are many ways to connect the extended section of the DN single hydraulic prop to the cylinder, there are also shortcomings:
1. A reinforcement sleeve is provided on the cylinder and the outer cylinder of the lengthened section. This method has a complicated process and a manufacturing cost.
2. Due to the increase of the lengthened section, the position of the three-purpose valve is increased, and the operation is not convenient when used.
3. It is difficult to install and disassemble the extended section, and some extended sections cannot be removed, which limits the use of the prop.
As we all know, DN single hydraulic props can be used with metal hinged roof beams for general mining and artillery, using working face support roof and fully mechanized mining face support ends, or can be used as a single column or other temporary support use. I hope everyone can understand the above deficiencies to prevent unnecessary damage during use. If you have more professional questions about DN single hydraulic props, please feel free to leave us an online message.
