China API Spec 11B Sucker Rods - Reliable Suppliers & Factory for High-Quality Rod Pumping Systems
Efficient power transmission in continuous rod pumping cycles
Resistance to alternating tensile and compressive stresses within oilwell bores
Reliable operation in wells with corrosive fluids, high deviation angles, or abrasive formations
Manufactured to the rigorous requirements of API Spec 11B, each sucker rod undergoes quenching and tempering, ultrasonic inspection, magnetic particle testing, and dimensional verification to ensure integrity throughout the string. TAKELO also provides couplings, pony rods, and specialized surface treatments, such as copper plating, nitriding, or Ni-P alloy coating, to mitigate corrosion and extend fatigue life.
With extensive deployment across global oilfields, TAKELO sucker rods have demonstrated superior run-time performance, reduced failure rates, and compatibility with advanced rod-pump optimization technologies. These capabilities make them a dependable choice for both shallow stripper wells and deep, high-load pumping applications.
| Size | Thread D. | Length | Outside Diameter of Pin Shoulder | Length of Thread | Length of Wrench Square | Width of Wrench Square |
| (in) | (in) | (ft) | (mm) | (mm) | (mm) | (mm) |
| 5/8 | 15/16 | 2 4 6 8 10 25 30 | 31.8 | 31.75 | ≥ 31.8 | 22.2 |
| 3/4 | 11/16 | 38.1 | 36.5 | 25.4 | ||
| 7/8 | 1 3/16 | 41.3 | 41.28 | |||
| 1/1 | 1 3/8 | 50.8 | 47.63 | ≥ 38.1 | 33.3 | |
| 1 1/8 | 1 9/16 | 57.2 | 53.98 | ≥ 41.3 | 38.1 | |
| Grade | Yield Strength | Tensile Strength Rm (Mpa) | Percentage Elongation A | Contraction Percentage of Area Z (%) | Impact Toughness | |
| Rel (Mpa) | (%) | a(3/cm2) | ||||
| C | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 | |
| D | ≥ 620 | 794-965 | ≥ 10 | ≥ 505 | ≥ 58.85 | |
| K | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 |
| Size | Rod D. | Length | Thread D. (in) | Thread Length (mm) | Small Diameter Taper of Thread | ||
| (in) | (mm) | (ft) | |||||
| 1 | 25.4 | 30 25 24 16 |
15/16 | 28.58 | 9° | ||
| 1 Upset | 15/16 | 1 1/16 | 31.75 | 36.5 | |||
| 1/8 | 28.6 | 15/16 | 1 1/16 | 34.93 | |||
| 1-1/8 Upset | 1 3/16 | 1 3/8 | 41.28 | 47.63 | |||
| 1 1/4 | 31.8 | 1 3/16 | 34.93 | ||||
| 1-1/4 Upset | 1 3/8 | 1 9/16 | 47.63 | 53.98 | |||
| 1 1/2 | 38.1 | 1 3/8 | 44.45 | ||||
| Grade | Yield Strength Rel (Mpa) | Tensile Strength Rm (Mpa) | Percentage Elongation A (%) | Contraction Percentage of Area Z (%) | Impact Toughness ak(J/cm2) | ||
| 1 | ≥ 414 | 620-827 | ≥ 12 | ≥ 55 | ≥ 70 | ||
| 2 | General | ≥ 586 | 655-1102 | ≥ 10 | ≥ 50 | ≥ 58.8 | |
| Anti-corrosion | ≥ 414 | ≥ 12 | ≥ 55 | ≥ 70 | |||
Q: What are the key applications of TAKELO sucker rods?
A: They are primarily used for efficient power transmission in continuous rod pumping cycles, resisting alternating stresses, and ensuring reliable operation in corrosive or abrasive wells.
Q: What manufacturing standards do these sucker rods meet?
A: Each sucker rod is manufactured to the rigorous requirements of API Spec 11B to ensure maximum quality and structural integrity.
Q: What quality control testing do the sucker rods undergo?
A: The rods undergo comprehensive testing, including quenching and tempering, ultrasonic inspection, magnetic particle testing, and precise dimensional verification.
Q: Are specialized surface treatments available?
A: Yes, TAKELO provides specialized surface treatments such as copper plating, nitriding, or Ni-P alloy coating to mitigate corrosion and significantly extend fatigue life.
Q: Can these rods be used in deep or high-load wells?
A: Absolutely. They demonstrate superior run-time performance and are a highly dependable choice for both shallow stripper wells and deep, high-load pumping applications.
Q: Does TAKELO provide additional string components?
A: Yes, alongside the sucker rods, TAKELO also provides matching couplings and pony rods to ensure complete integrity and compatibility throughout the string.