The main models of hexagonal drill rods are H25 and H28 (not commonly used), and H32 and H35 are more commonly used. Rock drilling trolleys are mostly one-time rock drilling, without changing rods.
Hydraulic drilling rigs are mostly connected with multiple drill rods for rock drilling (3.66*3 meters)
Differentiation of rock drilling tools: rock drilling trolleys mainly use hexagonal drill rods for work, and hydraulic rock drilling rigs mainly use round rods for work. The main models of hexagonal drill rods are H25 and H28 (not commonly used), and H32 and H35 are more commonly used. Rock drilling trolleys are mostly one-time rock drilling, without changing rods.
Hydraulic drilling rigs are mostly connected with multiple drill rods for rock drilling (3.66*3 meters)
Thread difference: R thread represents R-type thread, and the number after the thread represents the diameter of the thread; T thread represents T-type thread; T thread position size is internationally unified and can be determined according to the thread model. R thread has a certain difference in pitch. The international standard R thread pitch is 12.7mm, and the domestic standard R thread is 12mm. It is important to grasp it in the process of communicating with customers.
Generally, the rock drilling rods with T38 T45 T51 threads we are talking about refer to the hydraulic rock drilling trolley rods with round rods in the middle.
Generally speaking, the R25, R28, and R32 threaded rock drill rods refer to the rock drill trolley drill rods with a hexagonal rod in the middle.
