API Spec 11B Sucker Rods from China Suppliers - High-Quality Manufacturing at Our Factory
Key Applications Include
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.
Sucker Rod & Pony Rod Specification
| Size (in) | Thread D. (in) | Length (ft) | Outside Diameter of Pin Shoulder (mm) | Length of Thread (mm) | Length of Wrench Square (mm) | Width of Wrench Square (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 Rel (Mpa) | Tensile Strength Rm (Mpa) | Percentage Elongation A (%) | Contraction Percentage of Area Z (%) | Impact Toughness 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 |
Polished Rod Specification
| Size (in) | Rod D. (mm) | Length (ft) | Thread D. (in) | Thread Length (mm) | Small Diameter Taper of Thread | ||
|---|---|---|---|---|---|---|---|
| 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 | ||
Frequently Asked Questions
What are the primary applications of TAKELO sucker rods?
They are primarily used for efficient power transmission in continuous rod pumping cycles, offering resistance to tensile and compressive stresses, and ensuring reliable operation in wells with corrosive fluids, high deviation angles, or abrasive formations.
What manufacturing standards do these sucker rods meet?
TAKELO sucker rods are manufactured to the rigorous requirements of API Spec 11B.
What quality control measures are in place during production?
Each sucker rod undergoes strict quality control including quenching and tempering, ultrasonic inspection, magnetic particle testing, and dimensional verification to guarantee string integrity.
Are specialized surface treatments available?
Yes, TAKELO provides specialized surface treatments such as copper plating, nitriding, or Ni-P alloy coating to mitigate corrosion and significantly extend fatigue life.
What types of wells are suitable for TAKELO sucker rods?
Because of their superior run-time performance and reduced failure rates, they are a highly dependable choice for both shallow stripper wells and deep, high-load pumping applications.