为了与平巷掘进和隧道掘进中凿岩机功率不断增大的特点相适应,山特维克对Alpha 330钻具系统进一步优化从而更好地控制冲击能量。通过在设计和尺寸上进行优化,替代了当今占主导地位的R32螺纹,并广泛应用于45mm钻孔孔径,钻杆与钻头连接部分采用全新的螺纹设计。为了进一步增强刚性连接,山特维克在钻杆和钻头裤体之间引入了新的导向装置,紧随在螺纹后面。在导向位置的钻杆横断 In keeping with the increasing power of rock drilling rigs during tunneling and tunneling, Sandvik further optimizes the Alpha 330 drilling system to better control the impact energy. Optimized in design and size, it replaces today’s dominant R32 threads and is used in a wide range of 45mm boreholes, with a new thread design for the drill pipe to bit connection. To further enhance the rigid connection, Sandvik introduces a new guide between the drill pipe and the drill bit body, just behind the thread. Drill rods in the pilot position are transected