The large-section tunneling footage of XCMG's roadheader has reached a new high in the client's history!

The customer sent a letter of praise

XugongEBZ260M-2HRear-mounted Roadheader

Full rock、High hardness、Soft bottom plate

There is a slope、Large section tunneling

The footage reached 101 meters, a record high in the mine.

The construction site of XCMG's Roadheader is a coal mine under the State Energy Group.，Heading face specification is 5 wide.7 meters、High 4.Semicircular arch section of 65m，Average slope 6.5 degrees，Full face rock roadway、The hardness of the rock is high。

Before the entry of XCMG Roadheader and anchor machine，It is mainly to drive the anchor rod manually.，It needs two people to operate and the convenience of drilling the anchor rod is not good.，Not only the construction technology requirements are high,，The safety and work efficiency are also low.，Input and output are not in direct proportion。

Due to the hardness of the rock，The traditional construction method takes about 4 hours to cut a row.，Not only is the progress slow，And the damage is extremely serious.。XCMG Technology、The service engineer shall assist the engineering and technical personnel of the client to systematically and thoroughly analyze the geological conditions and drilling data at the heading face site.，It was decided to loosen the rocks in the working face by means of vibrating guns.，And then cut and excavating by use an excavating anchor machine.。

After construction process adjustment，The cutting time of the first row of XCMG roadheader is reduced by 2 hours.，Steady daily advance of 3 meters，The highest daily advance reaches 4 meters.，The construction cost is reduced.，It also speeds up the progress of excavation.。

At the same time, support management should be strengthened.、The spacing of rectangular bolt-mesh-cable support row is 2m.；Rectangular arrangement of threaded steel anchor rod is adopted at the top，7 per row，The spacing is 1 meter；The sides are arranged in a rectangular shape with round steel anchor rods.、The spacing is 1 meter；So that that safety of the top plate and the side wall is ensured，But also realize regular cycle tunneling.，To ensure the smooth progress of mine production continuation work.。

XugongBZ260M-2HRear-mounted roadheader with low cost，Set a record high construction progress of the mine，Greatly meet customer needs，Create value for customers，Won praise and praise from customers.!

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