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tunneling rock bolts
tunneling rock bolts
Supplier Info
[China Supplier]
Contact Person : Ms. Xing kelly
Tel : 86-379-63501959
Fax : 86-379-63501159
Product Detail
1.Tunneling rock bolt 2.Mainly used in tunneling, mining consturction 3.With high strength and resonable price

Tunneling rock bolt consists of anchor rod, anchor head, grouting stopper, arch plate and nut. The anchor rod is made of seamless steel tube with high strength. Hex nut and hemispherical nut are available which are all machined. You can also choose square plate or round plate. 

Tunneling rock      bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works, suitable for good or medium rock surroundings. 

Product Specification: 

specification 

GY25

GY28

GY32

external diameter(mm)

25

28

32

Breaking load(KN)  

≥150-180

≥180-220

≥220-250

Interior diameter(mm)

≥15

≥17

≥22

drilling diameter(mm)

42

42

51

thread type

               left hand

standard length(m)

1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0

length tolerance 

±2.5%

Also available hot dip galvanized rods and accessories, special diameter can customize.

Plate dimension: 120*120*4mm,120*120*6mm,150*150*6mm,150*150*8mm.

tunneling rock bolts

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