Sucker Rod Couplings,Sub-couplings,Polished Rod Connections
Sucker rod couplings ,Sub-couplings and Polished rod connections
Our Advantages:
1 API Certificate
2 R&D Ability
3 100% Inspection
4 0 Defect
5 Five years' exporting experience
Technical Parameters
Full Size Coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Length of Wrench Square (mm) |
Hardness(HRA) |
| 5/8" | 38.10 | 101.6 | 15/16" | 31.8 | 56-62 |
| 3/4" | 41.28 | 1-1/16" | |||
| 7/8" | 46.00 | 1-3/16" | |||
| 1" | 55.60 | 1-3/8" | 38.1 | ||
| 1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Length of Wrench Square (mm) |
Hardness(HRA) |
| 5/8" | 31.75 | 101.6 | 15/16" | 31.8 | 56-62 |
| 3/4" | 38.10 | 1-1/16" | |||
| 7/8" | 41.30 | 1-3/16" | |||
| 1" | 50.80 | 1-3/8" | 38.1 |
Full Size Sub-coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Small End Thread D. | Big End Thread D. | Hardness(HRA) |
| 5/8"-3/4" | 41.28 | 101.6 | 15/16" | 1-1/16" | 56-62 |
| 3/4"-7/8" | 46.00 | 1-1/16" | 1-3/16" | ||
| 7/8"-1" | 55.60 | 114.3 | 1-3/16" | 1-3/8" | |
| 1"-1-1/8" | 60.33 | 127.0 | 1-3/8" | 1-9/16" |
Slim Hole Sub-coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Small End Thread D. | Big End Thread D. | Hardness(HRA) |
| 5/8"-3/4" | 38.10 | 101.6 | 15/16" | 1-1/16" | 56-62 |
| 3/4"-7/8" | 41.30 | 1-1/16" | 1-3/16" | ||
| 7/8"-1" | 50.80 | 114.3 | 1-3/16" | 1-3/8" |
Full Size Polished Connection
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Vanish Cone | Hardness(HRA) |
| 5/8" | 38.10 | 101.6 | 15/16" | 9O | 56-62 |
| 3/4" | 41.28 | 1-1/16" | |||
| 7/8" | 46.00 | 1-3/16" | |||
| 1" | 55.60 | 1-3/8" | |||
| 1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Polished Connection
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Vanish Cone | Hardness(HRA) |
| 5/8" | 31.75 | 101.6 | 15/16" | 9O | 56-62 |
| 3/4" | 38.10 | 1-1/16" | |||
| 7/8" | 41.30 | 1-3/16" | |||
| 1" | 50.80 | 1-3/8" |
Coupling Mechanical Properties
| Tensile Strength Rm(Mpa) | Yield Strength Rel(Mpa) | Elongation Percentage A(%) | Reduction Percentage of Area Z(%) |
| ≥655 | ≥405 | ≥16 | ≥48 |
Manufacturing Workshop of coupling
sucker rod coupling
Packaged into box

We are willing to cooperate with customers from places and countries all over the world, and it will be appreciated if you can provide us with precious suggestions.
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