| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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Sinker bar has one elevator neck on one end, and pin threads on each end maybe sucker rod thread or polished rod thread, determined by the sucker rod string. It is a steel rod of a specified length, normally in a larger diameter than sucker rods, is provided in standard sizes with externally threaded ends offered to add weight and stability to the sucker rod string. An oil well uses only one sinker bar, and it is placed at the bottom of the sucker rod string. Sinker bars are made of high-quality hot-rolled carbon steel or Cr-Mo structural alloy steel. There are external threads, which are the same as that of sucker rods or polished rods, shoulders and wrench flats at both ends and a elevator neck at one end. There are six specifications: 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8" and 1-3/4". 
| Dimensions and Tolerances of Sinker Bars | |||||||||||
| Nominal Size | 1-1/4 in. | 1-3/8 in. | 1-1/2 in. | 1-5/8 in. | 1-3/4 in. | ||||||
| in. | mm | in. | mm | in. | mm | in | mm | in. | mm | ||
| With Sucker Rod Pin Threads | |||||||||||
| Sinker Bar Diameter | Size | 1.250 | 31.75 | 1.375 | 34.93 | 1.500 | 38.10 | 1.625 | 41.28 | 1.750 | 44.45 |
| Tolerances | +0.000 -0.030 |
+0.00 -0.76 |
+0.000 -0.030 |
+0.00 -0.76 |
+0.000 -0.030 |
+0.00 -0.76 |
+0.000 -0.030 |
+0.00 -0.76 |
+0.000 -0.030 |
+0.00 -0.76 |
|
| Pin Shoulder to Wrench Flat | Max. Size | 0.750 | 19.05 | 0.750 | 19.05 | 0.750 | 19.05 | 0.750 | 19.05 | 0.750 | 19.05 |
| of Wrench Flat (2 flats standard) | Size | 1.000 | 25.40 | 1.000 | 25.40 | 1.3125 | 33.34 | 1.3125 | 33.34 | 1.500 | 38.10 |
| Tolerances | ±0.03125 | ±0.794 | ±0.03125 | ±0.794 | ±0.03125 | ±0.794 | ±0.03125 | ±0.794 | ±0.03125 | ±0.794 | |
| Elevator Neck Diameter | Size | 0.875 | 22.23 | 1.000 | 25.40 | 1.000 | 25.40 | 1.000 | 25.40 | 1.000 | 25.40 |
| Tolerances | +0.009 -0.018 |
+0.23 -0.46 |
+0.009 -0.018 |
+0.23 -0.46 |
+0.009 -0.018 |
+0.23 -0.46 |
+0.009 -0.018 |
+0.23 -0.46 |
+0.009 -0.018 |
+0.23 -0.46 |
|
| Length of Sinker Bar | Size | 240 | 6,096 | 240 | 6,096 | 240 | 6,096 | 240 | 6,096 | 240 | 6,096 |
| 300 | 7,620 | 300 | 7,620 | 300 | 7,620 | 300 | 7,620 | 300 | 7,620 | ||
| 360 | 9,144 | 360 | 9,144 | 360 | 9,144 | 360 | 9,144 | 360 | 9,144 | ||
| Tolerances | ±2.000 | ±50.80 | ±2.000 | ±50.80 | ±2.000 | ±50.80 | ±2.000 | ±50.80 | ±2.000 | ±50.80 | |
| Length of Wrench Flat | Min. Length | 1.250 | 31.75 | 1.250 | 31.75 | 1.250 | 31.75 | 1.250 | 31.75 | 1.250 | 31.75 |
| Rod Pin Size (Nominal Size) | 5/8 | 5/8 | 3/4 | 7/8 | 7/8 | ||||||
| Length of Elevator Neck | Min. Length | 4.000 | 101.60 | 4.000 | 101.60 | 4.000 | 101.60 | 4.000 | 101.60 | 4.000 | 101.60 |
| With Polished Rod Pin Threads | |||||||||||
| Rod Pin Size (Nominal Size) | Size | 3/4 | 3/4 | 7/8 | |||||||
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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