Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629)
10/2012
10/24/2012CN202500563U Rear-support rotation mechanism of second conveyor of heading machine and engineering machine
10/24/2012CN202500562U Excavating, supporting and anchoring parallel operating system
10/24/2012CN202500561U Mine driving loader
10/24/2012CN202500560U Rotary-drilling-type cutting unit of coal mining machine and heading machine
10/24/2012CN202500559U Compact type composite height-regulating coal cutter with small drum and large mining height
10/24/2012CN102748025A Cutting coal mining method and device thereof
10/24/2012CN102748022A Tunneler and shovel board device thereof
10/24/2012CN102748021A Multifunctional coal loader
10/24/2012CN102748020A Coal mining excavation saw
10/24/2012CN102748019A Cutting device of coal cutter
10/24/2012CN101967972B Mining equipment and spraying system thereof
10/18/2012US20120261977 Thick Pointed Superhard Material
10/17/2012CN202493268U Cutting head of heading machine
10/17/2012CN102733807A Diesel-power full-hydraulic continuous stripping machine
10/17/2012CN102733805A Coal mining machine
10/17/2012CN102733803A Compound cantilever excavator
10/17/2012CN102733802A Composite rotary-cutting mining machine
10/11/2012US20120256470 Drum Housing For A Working Drum Of A Construction Machine Or Mining Machine, Construction Machine Or Mining Machine, As Well As Method For Monitoring The Condition Of A Working Drum Of A Construction Machine Or Mining Machine
10/10/2012CN202483569U Crushing mechanism of punching shovel coal mining machine
10/10/2012CN202483568U Cutting device of road header
10/10/2012CN102200089B Shearer and water treatment system thereof
10/04/2012WO2012129593A1 Rock cutting equipment
10/04/2012US20120248848 Cutting Device with Function of Changing Diameter in Small Range for Soft Rock Shield Machine
10/03/2012CN202467837U Anti-interference hydraulic cylinder for heading machine
10/03/2012CN202467836U Crushing device for drum type coal mining machine
10/03/2012CN202467835U Chain-free alternating-current traction coal mining machine
10/03/2012CN102704929A Digging and anchoring machine integrated with digging, anchoring and drilling
10/03/2012CN102704928A Rotatable retractable cutting device for comprehensive mechanized stone head tunneling machine set
10/03/2012CN102704927A Comprehensive mechanization stone drift heading machine set
10/03/2012CN102094647B Safe and efficient fully-mechanized mining method for thin coal seam under two hard conditions
10/03/2012CN102071934B Heading machine and cantilever working mechanism thereof
10/03/2012CN101881162B Drill loader
09/2012
09/27/2012DE102011014912A1 Machining device for creating mining cavities in mine, has continuous conveyer movably guided at mining system, where multiple hydraulically driven rotary percussive cutting equipments are provided in device
09/26/2012CN202451150U Novel coal mining machine
09/26/2012CN102691500A Sawing-impacting coal cutter
09/26/2012CN102691499A Special drum of coal mining machine for crossing geologic structure
09/19/2012CN202441377U Loading and transporting star wheel of heading machine
09/19/2012CN102678110A Cutting-head type short-wall large-mining-height coal winning machine and comprehensive mechanized coal mining process
09/19/2012CN102678109A Cutting part protective device for continuous mining machine and continuous mining machine
09/19/2012CN102080541B Bidirectional cutting method for continuous miner
09/18/2012US8267194 Rotation device for a boom of a mining or constructions work rig, rig and boom
09/12/2012CN202431640U Internal-transmission-torque hydraulic cylinder and carrier-mounted water-and-gas detecting roofbolter
09/12/2012CN202431270U Multifunctional roadway excavating conveyor
09/06/2012US20120223568 Holder Block Assembly for a Cutting Tool Having a Hydraulic Piston and Method
09/06/2012US20120223567 Core breaker for a mining machine
09/05/2012CN202417494U Wearable structure of drum rotary vane plate and arc-shaped coal baffle plate for coal mining machine
09/05/2012CN102108862B Coal mining equipment and roller electrical speed regulating system
09/05/2012CN102003178B Retractable tunneling machine convenient for underground transport
08/2012
08/29/2012CN202402033U Collection device for shovel plate of heading machine
08/29/2012CN202402030U Rectangular full-face continuous miner
08/29/2012CN202402029U Telescopic device of cutting arm of road header
08/29/2012CN102650209A Tunneling machine
08/28/2012CA2714983C Drilling unit, method for slot drilling and slotting device
08/28/2012CA2595326C Device for milling rock and other materials and method for milling rock or the like using said device
08/23/2012DE202011050143U1 Gewinnungseinrichtung zum Abbau von flözartig oder massiv abgelagerten mineralischen Materialien und Gewinnungsmaschine hierfür Obtaining means for reducing flözartig or solid deposited mineral materials and mining machine for this purpose
08/22/2012CN202391424U Supporting type comprehensive bolter miner
08/22/2012CN102644461A Double-motor U-shaped cutting portion of thin seam mining machine
08/16/2012US20120205964 Segments and apparatus for high wall mining including fluid feed
08/15/2012CN202381092U Coal cutter
08/15/2012CN202381091U Deflectable cutting device for coal mining machine
08/15/2012CN102635353A Double-cantilever hard rock coal roadway heading and anchoring device
08/14/2012US8240776 Articulate continuous miner
08/09/2012US20120200138 Adaptive advance drive control for milling machine
08/08/2012CN202370560U Fully automatic cutter dicing unattended operation coal mining device
08/08/2012CN102628362A Automatic working face complete equipment for thin seam drum shearer
08/08/2012CN102628361A Tunneling machine and second conveyer revolving structure thereof
08/07/2012CA2541718C Boring rig
08/06/2012DE202011100196U1 Vorrichtung für Bohrungen im Erdreich Apparatus for drilling holes in the ground
08/01/2012CN202360092U Screw conveyor for EPB (earth pressure balance) underground pipe-jacking machines
08/01/2012CN202360091U Excavation equipment integrating rock drilling, loading and gangue discharging
08/01/2012CN202360090U Water-cutting segmentation coal mining machine for water-cutting segmentation coal mining method
08/01/2012CN202360089U rocker arm and coal mining machine with cutting motor arranged longitudinally
08/01/2012CN102619511A Working-face automated integrated control system for thin seam drum shearers
08/01/2012CN102619509A Adjustable scraper for scraper loader
08/01/2012CN102619507A Chute connecting and fastening device for scraper loader
07/2012
07/26/2012US20120187746 Fiber optic cable protection in a mining system
07/26/2012US20120187744 Hydraulic ripper for excavators
07/26/2012US20120187743 Method of controlling a miner to cause wobble in the cutting heads
07/25/2012CN202348278U Loading mechanism for cantilever type tunnelling machine
07/25/2012CN202348277U Coal cutter rotary drum for cutting hard dirt band
07/25/2012CN102606155A Method of controlling a miner to cause wobble in the cutting heads
07/25/2012CN102606154A Coal roadway tunneling machine with double round cutter heads
07/25/2012CN102606153A Fully sealed coal roadway tunneling and anchoring synchronous machine
07/25/2012CN102606152A Novel quick digging and anchoring integrated machine for rectangular coal roadway
07/18/2012CN202338341U 急倾斜极薄煤层无人工作面的采煤装置 Steeply inclined thin seam mining equipment unattended Face
07/18/2012CN102587904A Comprehensive mechanical rock lane tunneling machine
07/18/2012CN102587903A Comprehensive tunneling system for stone drift
07/18/2012CN102587902A Coal mining machine
07/18/2012CN102587901A Cutting device of roadheader
07/18/2012CN102587266A Bit holding system with an opening for removal of broken bits
07/18/2012CN101994511B Construction technique for cutting and splitting rectangle grooves of railway and road tunnel
07/12/2012US20120174905 Ground level portable saw machine
07/11/2012CN202325505U 大坡度掘进机 Large slope boring machine
07/11/2012CN202325504U 可移动仓储式耙斗装岩机 Removable storage type scraper rock machine
07/11/2012CN202325503U Position adjustment push device for thin coal layer scraper conveyor
07/11/2012CN202325502U 新型采煤机用截割头螺旋滚筒 The new cutting head Shearer Spiral Drum
07/11/2012CN202325501U 短壁大采高采煤机 Short wall with large mining height Shearer
07/11/2012CN102562705A Internal-transmission torque hydraulic cylinder and water-detecting gas-detecting onboard jumbolter
07/11/2012CN102562066A Method for mechanically mining coal by using steep seam pseudo inclination bracing type retractable flexible shield support
07/11/2012CN102562057A Construction method for cutting solution fissure of salt ore
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