| After-sales Service: | Yes |
|---|---|
| Warranty: | 1 Year |
| Manufacturing Process: | CNC Milling |
| Surface Treatment: | Spray-Paint |
| Material: | Alloy |
| Transport Package: | Wooden Case |
| Samples: |
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| Customization: |
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Audited Supplier Sucker rod couplings are used to connect sucker rod or pony rod. This kind of couplings can be classified as full size couplings and slim hole couplings,with class T, SM grade. Except that, there is sub-coupling that is used to connect sucker rods of different sizes.
Class T and Class SM coupling for sucker rods are manufactured as per API Specification 11B. For the thread cutting, we are using cold form rolled by displacing rather than by removing of material for making the coupling thread. The thread rolling cutting results in a compressive stress at the root of the thread, giving maximum strength to the traditional weak point of cut-thread couplings.
Class T coupling is using AISI 5140 to manufacture.The coupling is coated using phosphate chemical treatment or black oxide on customer's request.For Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
The couplings are available in full size, slim hole and over size.Also, combination couplings are available for different diameters (sub-coupling) for both Class T and Class SM couplings.
| 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" |
| 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 | 15/16" | 31.8 | 56-62 |
|
| 3/4" | 38.10 | 1-1/16" | |||
| 7/8" | 41.30 | 101.6 | 1-3/16" | ||
| 1" | 50.80 | 1-3/8" | |||
| 15/16" | 38.1 |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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