Rotamec 1302型车装全液压回转钻机能准确控制加减压，立轴高扭矩，大范围立轴速度，大排量的空气洗井和高压空气，使这种钻机同样适用潜孔锤钻进，就象用牙轮钻头钻进一样。1302型钻机可用于大口径的深水井钻进（见图1）。潜孔锤一般用于中硬—很硬层。钻头的直径范围，建议为152—304毫米。大口径潜孔锤和钻头达380毫米，一般需用额外的空压机或泡沫洗井。使用空气或泡沫洗井时，有效的工作深度取决于 The Rotamec 1302 fully hydraulic rotary drilling rig can accurately control the pressure, vertical axis high torque, a wide range of vertical axis speed, high displacement air flushing and high pressure air, so that this drill is also suitable for drilling down the hole, as Drill bit with the same. The Model 1302 can be used for drilling large bore deep wells (see Figure 1). DTH hammer for the general hard - hard layer. Drill diameter range, the proposed 152-304 mm. Large-diameter down-the-hole hammer and drill up to 380 mm, the general need to use extra air compressor or foam wash well. When working with air or foam, the effective working depth depends on