Rock Drilling Core Barrels with Roller Bits adopt the high-carbon steel and special drilling bits angle to keep the drilling strength and efficiency.
There are tree types of core barrels: 1)Core Barrel with bullet teeth is used for cutting an annular ring in rock or concrete(also reinforced concrete). 2)Core barrel with roller bits is used in very strong rock formations(compressive strength > 100Mpa). 3)Cross cutter core barrel is mainly used to break rock cores which remain in the borehole after using a core barrel, also suitable for drilling hard, jointed rock(<100Mpa) and for penetrating through layers containing boulders. Applicable layers: dense sand, gravel and medium hard rocks, etc.
Core Barrel Core Barrel ,Rock Drilling Bucket, Foundation Core Barrel,Hard Rock Bucket ,Core Barrel For Pile Foundation CANGZHOU GREAT DRILL BITS CO., LTD , https://www.triconerockbits.com
NL type sewage long axis mud pump demolition time, first from the electric or surface plate, the outlet pipe to be removed, and then the volute, the motor seat and other parts, and finally from the shaft to remove the sleeve With bearings. NL type sewage long axis mud pump disassembly way, then how to install NL type sewage long axis mud pump? Next, we will introduce you to NL type sewage long axis mud pump installation method. How to install NL Sewage long-axis mud pump 1. Check all the parts for defects. Apply a layer of butter on both sides of the paper pad and add two-thirds of the butter in the bearing. 2, skeleton oil seal must be filled with butter into the pump seat, and then loaded on the bearings. 3, the sleeve fitted with a 0-ring sealed with butter. 4, the bearing in the motor seat, put the paper pad, oil seal ring, mounted on the shaft and the support tube with screws. 5, put paper pad, fitted with bearings, bushings, keys, pump seat and impeller, tighten the impeller nut hand rotating impeller, flexible rotation can be. 6, put the paper pad fitted pump casing, fixed with screws and fitted with filter. Then hand pulling the impeller, turning flexible. 7, Install the key and driven coupling on the pump shaft, install the key and active coupling on the motor shaft, then fix the motor and the motor base bolt. After installation, the axial clearance between the active coupling and the driven coupling should be 1 to 1.5 mm. Extended reading: China Construction Water Exhibition water pump manufacturers rankings ptc exhibition motor top ten brands pump valve pipe fittings Show Information Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http: // mj .liuti.cn / (Service Hotline:)