Year1
- 名称：
- GL
- 规格：
- 矿用单体液压支柱
The steel material is
silicon-manganese steel, which will not produce sparks during collision.
The steel material has been adjusted and quenched to increase the strength and prevent the pillar from bending.
It has strong anti-eccentric load ability and greater stability.
High reliability
The pillars no longer have arc welds on the pillars that are difficult to guarantee in terms of workmanship, which also improves the strength and reliability of the pillars and avoids roof collapse caused by fracture of the welds. Accident hazards are eliminated to ensure the safety of staff. However, each series of pillars currently used at home and abroad have a column head equipped with a three-purpose valve welded to the column, which greatly reduces the strength of the column.
Light weight
Depending on the different specifications of the pillars, the weight of the entire column is more than lighter than the existing pillars at home and abroad
, but its working resistance, working stroke and stability and safety factor are higher than those of aluminum alloy pillars.
Large working stroke
Wide range of use
The large working stroke of the pillar expands the scope of use and can also reduce the specifications and varieties of pillars, especially on working surfaces where the roof sinks significantly
type pillar can still meet the large constant increase in resistance and drop distance. It is not only convenient to return to the pillar, but also improves the recovery rate of the pillar, reduces the consumption of the pillar, and reduces the production cost. Each specification can replace each specification of the series pillars, which reduces the variety of pillar specifications and also brings convenience to pillar management. It reduces the coal mine’s capital investment and management costs for pillar equipment.
High strength
High stability At present, pillars at home and abroad have internal leakage, which may cause the pillar to collapse, or even cause accidents such as the pillar automatically falling down and injuring people. All sealing points of the
type pillar are external and can be visually inspected with the naked eye. Once the pillar leaks, the pillar can be filled with liquid or replaced at any time, ensuring the safety and reliability of the roof support of the coal mining face. The
type pillar has no column head, no piston, and no arc welding seam, which simplifies the pillar structure process and improves safety. Its movable column and oil cylinder are both integral structures, with high strength and good stability.
Easy to use
At present, single hydraulic props at home and abroad have the column head equipped with a three-way valve welded to the movable column. When the movable column rises, the operator must rise with it, especially for The higher working surface makes it inconvenient and safe for the operator. The three-purpose valve of the type series pillar is located on the handle body. When the liquid is injected, the three-purpose valve will not rise with the rise of the live pillar. High, easy to operate, safe and reliable.
Low repair and maintenance costs
Each sealing point of the pillar adopts patented sealing compensation and sealing expansion technology principles. When the seal is worn and the plate is pressed, the seal can be maintained in a tight state, reducing the replacement rate of the seal and reducing repair and maintenance costs.
Use neutral water
Low operating cost
The pillars adopt advanced technology for special surface treatment process to make the pillars anti-corrosion, wear-resistant and anti-bubble collapse. The working medium uses underground coal mines. Neutral water ensures that the working environment and groundwater are not polluted, it also ensures the quality of drinking water in the mining area, and also ensures the health of the people living in the mining area. It is an ideal environmentally friendly product for coal mining face support without a piston. No internal leakage, no welds, no column heads.
Product Parameters of Cylinder Mine Suspension Single Hydraulic Prop
Model
Maximum Height
Minimum Height
Working Stroke
Working Resistance
Weight
Prop working range
Rated pressure
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