The pumping unit chain is a high-strength straight roller chain made of high-quality alloy steel and a special heat treatment process. The main models include S103, S114, S127, S127G, etc.
| Chain No. | Pitch | Roller Diameter | Pin Diameter | Inner Width Of Inner Link | Plate Hickness | Plate Thickness | Pin Length | Tensile Load | Weight/m |
| P | d1 | d2 | b1 | S | h2 | L | min | q | |
| mm | mm | mm | mm | mm | mm | mm | KN | kg/m | |
| S57.15 | 57.15 | 35.71 | 17.86 | 50.98 | 7.50 | 56 | 77.70 | 292 | 17.8 |
| S76.2 | 76.2 | 48.26 | 29.24 | 45.72 | 11.10 | 63.8 | 115.70 | 560 | 23.9 |
| S77.9 | 77.90 | 41.28 | 19.08 | 39.60 | 9.70 | 60.00 | 95.50 | 378 | 18.94 |
| S88.9 | 88.90 | 44.45 | 23.81 | 38.10 | 12.70 | 63.50 | 107.00 | 550 | 24.41 |
| 3315F | 103.45 | 45.24 | 23.81 | 47.88 | 14.20 | 54.00 | 122.00 | 596 | 25.4 |
| S103 | 103.45 | 57.15 | 27.97 | 49.30 | 14.10 | 79.20 | 125.20 | 700 | 39.03 |
| S114 | 114.30 | 63.50 | 31.78 | 52.30 | 14.10 | 79.20 | 132.00 | 900 | 43.46 |
| S127 | 127.00 | 66.68 | 33.34 | 55.55 | 15.88 | 88.90 | 148.00 | 934 | 45.42 |
| S127G | 127.00 | 63.50 | 34.93 | 71.43 | 15.88 | 88.90 | 165.00 | 1179 | 50.31 |
| S152 | 152.40 | 76.20 | 38.13 | 76.20 | 20.00 | 128.00 | 186.00 | 2167 | 84.56 |
| S177.8 | 177.80 | 88.90 | 48.48 | 82.60 | 22.20 | 133.40 | 205.10 | 2068 | 95.00 |
