Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City (www.tahnjd.com) is located in Tai'an City, Shandong Province, Taian Mountain Avenue, No. A66, Contact: Lee ZKBY-1 type Drift separation instrument ZKBY-1 type Drift separation instrument is a movement dedicated to detect roof strata monitoring instruments. It can display the range of ionospheric conditions within and outside the anchor bolt length with the range of roof strata, respectively. To mine technicians and engineering staff to provide surveillance to determine the length of the bolt, the tensile strength of high quality Shandong roof separation instrument, understand the rational use of anchors, economy and the need for scientific evidence. Thus effectively preventing accidents slump roof to ensure safety in coal mines. There bps roof separation instrument anchors, strand, sleeves, cursors, tighten the screw components. Roof sinking speed alarm roof sinking speed alarm can precisely measure the mine, wellbore, mine, mining face, sheds and other arch sinking speed, subsidence, deformation and displacement speed, volume and so on convergence. The main technical parameters: ① maximum linear displacement volume: 260mm; ② overrun preset speed range: 0.299 × 10mm/min; ③ overrun preset number :1-9 min / times; ④ Resolution: 0.01 min; ⑤ Adaptation :0.6-3m; ⑥ proof type: iblEx.