Friction bolt split set is a frictional ground support system. When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radical forces on rock roof surface along the whole length and firmly holds the rock.

The 47mm splitset rock bolt has the drill hole diameter of 43-45.5mm. The min yield strength is 120-135 kn. The min tensile strength is 165-180 kn. The typ tensile strength is 180-200 kn. The elongation is more than 20%. the typ anchorage is 6-10 tons. The bearing plate is 150*150*5 mm. There are many applications for this kind of split set rock bolt. It can be used in mines, tunnels, slopes, and some places where need ground support.

ZX Steel Group was founded in 1997.We have more than two decades experience on rail & track fields, covering an area of 33,000 square meters, with about 300 employees, 4 production lines, 2 R & D department, and 5 quality control staff. With advanced technology, powerful processing capacity and excellent service, our product have been well recognized by our customers from domestic & overseas market.

We try our best to treat our customers with the importance they deserve. We pride ourselves on being conscientious, reliable, and doing right thing in every situation.

Main products in our whole Group include as below:

Steel rails

GB rail: light rail, heavy rail, crane rail

DIN standard rail: A45, A55, A65, A75, A100, A120, A150.

JIS standard rail: 15kg, 22kg, JIS 30A, JIS 37A, JIS 50N, JIS CR73, JIS CR100.

ASTM standard rail: ASCE25, ASCE30, ASCE40, ASCE50, ASCE60, ASCE75, ASCE85.

Railway accessories 

   turnout switch, fish plates, rail clip, rail clamp, track spike, rail bolt/nut/washer, rail pad and etc.

Mining support products

   steel arch support, mining anchor bolts, mining plastic composite net, plate washer and etc

Other steel products

    channel steel, angle steel, I-beam steel, mining I-beam, U-beam steel, H-beam steel, steel plate,etc