- Other Tools[7]
- Tool Parts[6]
- Other Machine Tools Accessories[7]
- Cylindrical Roller Bearings[2]
- Other Mechanical Parts[10]
- Other Rubber Products[1]
- Used General Mechanical Components[1]
- Pumps[10]
- Valves[10]
- Pneumatic Parts[1]
- Cast & Forged[2]
- Mining Machinery Parts[10]
- Cylinders[2]
- Ceramics[1]
- Drilling Machine[1]
- Machining Services[1]
- Engine Parts[1]
- Construction Machinery Parts[1]
- Valve Bodies[1]
- Other Valve Parts[4]
- Seals[3]
- Moulds[2]
- Other Machine Tools[1]
- Other Hand Tools[1]
- Pump Casing[1]
- Hydraulic Tools[5]
- Pipe Fittings[1]
- Taper Roller Bearings[1]
- Spherical Roller Bearings[1]
- Other Machinery[1]
- Contact Person : Mr. fang zheng
- Company Name : Dezhou Rundong Petroleum Machinery Co., Ltd.
- Tel : 86-534-2620099
- Fax : 86-534-2621898
- Address : Shandong,Dezhou,No.1189, Xinhu Street ,Decheng District
- Country/Region : China
- Zip : 253000
Screwdrill
Screwdrill: The screwdrill is a kind of downhole drill tool driven by mud.
As mud fluid from the mud pump enters the motor via the by-pass valve, a certain pressure difference is formed at the inlet and outlet of the motor, pushing the rotor to rotate. Torque and rotate speed are transferred via the cardan shaft and the driving shaft to the bit.
Performance of the down-hole drill motor depends mainly on performance parameters of the screw motor.
model | OD mm (in | hole sizemm(in | connection thread API | nominated flowingL/s | bit rotate speed r/m | noggle pressure decline MPa | motor pressure declineMPa | working torgue N·m | max.torguekN·m2 | nominated weight on bit kN | nominated weight on bit kN |
5LZ95×7 | 95(33/4) | 118-152 (45/8-6) | 27/8REG | 716 | 80-200 | 7.0 | 2.4 | 780 1150 | 1710 | 25 | 50 |
5LZ102 ×7 | 102(4) | 118-152 (45/8-6) | 27/8REG | 716 | 80-200 | 7.0 | 2.4 | 780 1150 | 1710 | 25 | 50 |
5LZ120 ×7 | 120(43/4) | 149-200(57/8-77/8) | 31/2REG | 1016 | 80-160 | 7.0 | 3.2 | 1215 1817 | 2560 | 68 | 80 |
5LZ127 ×7 | 127(5) | 149-200(57/8-77/8) | 31/2REG | 1016 | 80-160 | 7.0 | 3.2 | 1215 1817 | 2560 | 68 | 80 |
5LZ165 ×7 | 165(61/2) | 213-251(83/8-97/8) | NC50 41/2REG | 1932 | 80-160 | 7.0 | 3.2 | 2916 3996 | 6800 | 80 | 160 |
5LZ172 ×7 | 172(63/4) | 216-251(81/2-97/8) | NC50 41/2REG | 1932 | 80-160 | 7.0 | 3.2 | 2916 3996 | 6800 | 80 | 160 |
7LZ197 ×7 | 197(73/4) | 251-311(97/8-121/4) | 51/2REG 65/8REG | 3250 | 80-150 | 7.0 | 4.0 | 6515 9215 | 13000 | 160 | 270 |
7LZ203 ×7 | 203(8) | 241-311(91/2-121/4) | 65/8REG | 3250 | 80-150 | 7.0 | 4.0 | 6515 9215 | 13000 | 160 | 270 |
9LZ244 ×7 | 244(95/8) | 311-445(121/4-171/4) | 65/8REG | 4470 | 90-150 | 7.0 | 3.2 | 7550 13740 | 18500 | 250 |
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Screwdrill
