Model	DQ-20-B Electric	DQ-20-YA Hydraulic	DQ-40-B Electric	DQ-40-BQ Electric	DQ-40-YA Hydraulic	DQ-50-B Electric	DQ-70-BS Electric	DQ-70-BSQ Electric	DQ-90-BS Electric
Rated Drilling Depth (ft)	6561	6561	13213/ 10500	13213/ 10500	13213/ 10500	16404/ 15000	22960/ 19680	22960/ 19680	29520/ 24600
Rated Load (ton)	150	150	250	250	250	350	500	500	750
Power Supply	600V AC 60/50HZ	460V AC 60/50HZ	600V AC 60/50HZ	600V AC 60/50HZ	460V AC 60/50HZ	600V AC 60/50HZ	600V AC 60/50HZ	600V AC 60/50HZ	600V AC 60/50HZ
Rated Current (A)	330	330	415	465	400	465	405*2	465*2	540*2
Max. Current (A)	445		623	700		700	607*2	700*2	810*2
Rated Power(Continuous) kW	250	300	315	375	400	375	315*2	375*2	450*2
Rotary Speed (rpm)	0~180	0~180	0~180	0~180	0~180	0~180	0~230	0~220	0~180
Drilling Torque (kN.m)	26	25	33	40	35	40	55	65	76
Max. Breakout Torque(kN.m)	39	35	50	60	49	60	82	100	120
Backup Tong Range (ft)	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~8-1/2	3-1/2~9
Hydraulic System Working Pressure (psi)	2320	5000	2320	2320	5000	2320	2320	2320	2320
Rated Pressure of IBOP (psi)	10K	10K	10K	10K	10K	10K	10K	10K	10K
Center Pipe ID (in)	2-1/2	2-1/2	2-1/2	2-1/2	2-1/2	3	3	3	3-1/2
Rated Circulation Pressure (psi)	5K	5K	5K	5K	5K	5K	5K	5K	5K
Max. Distance Between shaft center and the end of guide (mm)	463	463	570	570	563	700	925	930	1000
Main body Height (mm)	4400	4400	4800	4800	4000	5200	5600	5600	5700
Main body Weight (ton)	6.5	5	8.5	8.5	5.5	10.5	12.5	13	14
Main body dimension (mm)	4050*910* 1122	3600*950* 1050	4800*1258* 1235	5200*1495* 1444	4000*1140* 1090	5200*1495* 1444	5600*1400* 1500	5600*1560* 1520	5700*1900* 1750