Main Technical Specification of JYQ Double Acting Hydraulic-Mechanical Drilling Jar | ||||||||||||||||||
Model | O.D (mm) | I.D. (mm) | Joint Thread API | Max Working Load Lbf (N) | Max Tensile load Lbf (N) | Maximum Torque strength Lbf-ft (N/m) | UP Stroke in (mm) | Down Stroke in (mm) | Overall Length ft-in(mm) | |||||||||
JYQ121 | 4-7/8 (124) | 2-1/32 (51.4) | NC38 | 110,160 (490,000) | 440,000 (1,957,120) | 20,000 (27,120) | 9 (226) | 6 (152) | 14’9”(4,500) | |||||||||
JYQ159 | 6-3/8 (162) | 2-1/4 (57.2) | Nc46 | 139,380 (620,000) | 610,000 (2,713,280) | 50,000 (678,000) | 9 (226) | 6 (152) | 16’5” (5,007) | |||||||||
JYQ165 | 6-3/4 (168) | 2-1/4 (57.2) | NC50 | 139,380 (620,000) | 850,000 (3,780,800) | 75,000 (101,700) | 9 (226) | 6 (152) | 16’5” (5,007) | |||||||||
JYQ178 | 7 (178) | 2-1/4 (57.2) | NC50 | 139,380 (620,000) | 1,050,000 (4,670,000) | 100,000 (135,600) | 9 (226) | 6 (152) | 16’5” (5,007) | |||||||||
JYQ203 | 8 (203) | 2-13/16 (71.4) | 6-5/8 REG | 183,000 (820,000) | 1,500,000 (6,672,000) | 150,000 (203,400) | 9 (226) | 6 (152) | 16’7” (5, |