美女被干到高潮流水av_中文字幕乱妇免费视频_国产无遮挡裸体免费在线观看_中文亚洲高清少妇_亚洲综合狠狠五月丁香_上色的网站下载免费蘑菇_一区二区自拍视频_精品久久久蜜臀_影音先锋最新看片资源网址_国产美女网站污

ZJD5000/450C type

Technical parameter

NameZJD5000/450C
Rock strength /MPa200MPa
Maximum drilling diameter /m5
Constant torque speed of power head /rpm0~13
Constant power torque of power head  /t.m25
Constant power speed of power head /rpm0~6
Constant power torque of power head /t.m45
Bottom drilling weight /kN1580
Maximum drilling depth /m200
Orifice plate bearing capacity300
Drill pipes and drilling toolsφ559*22-φ351*14*3500
Rack tilt angle /deg30
Power head inclination /deg58
Power head inclination /t5
Power head inclinationAutomatic drilling + constant pressure drilling
Hydraulic pump power /kW3*110+1*15  
Hydraulic system pressure /MPaMAIN28Mpa
Maximum stroke of power head /m4.2
Power supply3PH-380V-50HZ
Total power /kW355
整機(jī)尺寸 /m10*7.1*7.6
工作時(shí)最大尺寸 /m14*7.1*7.6
整機(jī)重量 /t113

Automatic drilling system

The drilling rig has an automatic drilling control system, which can realize constant pressure automatic feed under the set WOB. The hydraulic system and electrical system are equipped with overload protection devices. When overloaded, the system will alarm or the protection device will trip.。