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Drilling rods made from alloy steel 28HGN3MA, drilling Rods made from steel 55C2
Drill–rods are made from alloy steel 28HGN3MA with isothermal hardening for removable and stopper drills.
Name | Standard size |
Hexagon hollow-bored rods with liner and tapered connection with bore bit | S22, length 500-6000 mm, liner 22х108 мм., cone 7° |
Hexagon hollow-bored rods with liner and tapered connection with bore bit | S25, length 500-3500 mm, liner 25х108 мм., cone 7° |
Rounded hollow-bored rods with liner and tapered connection with bore bit, ground face | D29,9, length 500-3500 mm, liner 25х108 мм., cone 7° |
Drilling rods are made from alloy steel 28HGN3MA with isothermal hardening for mechanized drilling, including powerful hydroperforators.
Name | Standard size |
Hexagonal hollow-bored rods with threaded connection with bore bit | S32, length 500-4000 mm, R32/32, R32/38, R38/38, R32/T38 |
Rounded hollow-bored rods with threaded connection with bore bit, ground face | D32, length 500-4000 mm, R32/32, R32/38, R38/38, R32/T38 |
Drilling rods are made of steel 55C2 for removable and stopper drills with oil hardening
Name | Standard size |
Rounded hollow-bored rods with liner and tapered connection with bore bit | S25, length 500-3500 mm, liner 25х108 мм., cone 7° |
Screwed shaft coupling
Name | Standard size |
Screwed shaft coupling, steel 12HGNZAB | According to GOST 4543-71, R32/32, R32/38, R38/38, R32/T38 |
Note: drilling rods length, liner length and cones for bore bits can be made according to the Customer’s order.
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