| |
Standard Dimension |
| JT20 |
¢120 |
¢40 |
¢40 |
43 |
43 |
460 |
3 |
15-25 |
| JT25 |
¢150 |
¢50 |
¢50 |
57 |
57 |
610 |
4 |
20-30 |
| JT30 |
¢170 |
¢55 |
¢55 |
57 |
57 |
640 |
4 |
25-35 |
| JT40 |
¢200 |
¢60 / ¢80 |
¢60 / ¢80 |
67 |
67 |
780 |
5 |
35-45 |
| JT50 |
¢220 |
¢80 |
¢80 |
73 |
83 |
930 |
6 |
45-55 |
The swivel of the rotary drilling rig is a metal connection structure, and the upper and lower joints, intermediates, etc. are made of forged alloy steel. After rough machining, strict heat treatment process shall be carried out before processing.
The Swivels of rotary drilling rig are mainly used to lift the kelly bar and drilling tools. The upper and lower joints and intermediates of the elevator are all made of high-quality alloy steel; All internal bearings adopt SKF standard, specially customized, with excellent performance; All sealing elements are imported parts, which are resistant to corrosion and aging.
Bearing SKF and FAG are adopted for internal bearing.
The sealing element is NOK, the grease in the bearing inner cavity is not easy to leak, and the mud and sundries in the outer cavity are not easy to enter the bearing cavity, so as to ensure the normal operation of the bearing.
Frequently Asked Questions
Q:
What is the primary function of the swivels on a rotary drilling rig?
The swivels are mainly designed and used to safely lift the kelly bar and various drilling tools during drilling operations.
Q:
What materials are used in manufacturing the main body of the swivel?
The upper and lower joints, as well as the intermediates, are made from high-quality forged alloy steel. They undergo rigorous rough machining followed by a strict heat treatment process to ensure durability under high loads.
Q:
Which bearing brands are used inside the drilling swivels?
We use premium SKF and FAG bearings inside the swivel. All internal bearings adopt SKF standards and are specially customized to deliver excellent performance and longevity.
Q:
How does the swivel prevent grease leakage and external contamination?
The swivels utilize high-performance NOK sealing elements. These seals ensure that grease inside the bearing cavity does not leak, while effectively preventing external mud, water, and debris from entering the bearing chamber.
Q:
What range of pulling capacities do these swivels cover?
Depending on the model (from JT20 to JT50), the pulling force capacity ranges from 15 KN up to 55 KN to accommodate different drilling scale requirements.
SINOVO
