Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Three types of polished rods are available: conventional grade D polished rod, one end diameter enlarged polished rod and high-strength, long stroke, corrosion resistant polished rod.
All the polished rods are made of quality alloy steel and machined by using the advanced machining technology with high strength, smooth surface and long service life. All types of the polished rods are API and ISO9002 certified.
Specifications of Conventional grade D Polished Rod
| Model | 900 | 800 | 700 | 600 |
| Stroke length m (ft) | 7.3 (23.95) | 7.0 (22.96) | 6.0 (19.68) | 5.0 (16.4) |
| Peak polished rod load kg (lbs) | 16, 310 (35, 957) | 14, 000 (30, 864) | 12, 000 (26, 455) | 10, 000 (22, 045) |
| SPM-Max s/min | 4 | 5.3 | ||
| SPM-Min s/min | No Absolute Minimum | |||
| Shipping weight kg (lbs) | 19, 500 (42, 900) | 17, 500 (38, 580) | 15, 500 (34, 171) | 13, 500 (29, 762) |
| Unit width m (ft) | 2.4 (7.87) | 2.2 (7.22) | ||
| Unit height m (ft) | 12.4 (40.68) | 11.1 (36.42) | 10.1 (33.14) | 9.2 (30.18) |
Specifications of One End Diameter Enlarged Polished Rods
| Size mm (in) | Material | Surface coating | Tensile strength M Pa (psi) | Suitable media | Length m (ft.) |
| 25 (1) | 20CrMo | Ni35 | 794-965 (115, 000-140, 000) | Cl-, CO2, H2S | 2.4 (8), 3.3 (11) 4.8 (16), 6.7 (22) 7.3 (24), 7.9 (26) 9.1 (30), 10.9 (36) |
| 28 (1-1/8) | 20CrMo | Ni35 | |||
| 32 (1-1/4) | 20CrMo | Ni35 | |||
| 38 (1-1/2) | 20CrMo | Ni35 |
| Size mm (in) | Material | Surface coating | Tensile strength M Pa (psi) | Suitable media | Length m (ft.) |
| 25 (1) | 20CrMo | Ni35 | 794-965 (115, 000-140, 000) | Cl-, CO2, H2S | 2.4 (8), 3.3 (11) 4.8 (16), 6.7 (22) 7.3 (24), 7.9 (26) 9.1 (30), 10.9 (36) |
| 28 (1-1/8) | 20CrMo | Ni35 | |||
| 32 (1-1/4) | 20CrMo | Ni35 | |||
| 38 (1-1/2) | 20CrMo | Ni35 |
