Currently has a long auger, lime machine, High Pressure Jet Drilling Rig, strong drill Roofbolter more than 10 varieties of five series.
目前已形成长螺旋钻机、灰土桩机、高压旋喷钻机、强冲钻机、锚杆钻机五大系列10多个品种。
2
Based on the analysis of the schematic diagram of pneumatic roofbolter, plot the route map and use it to analyse the cause of trouble with roofbolter.
通过对气动锚杆钻机原理图的分析，绘制出路线图，并利用路线图对锚杆钻机常见故障进行了分析。
3
The paper elaborates the relation of main factors influenced on the drilling speed of hydraulic roofbolter, which provides a calculation basis for reasonable match of main parameters of roofbolter.