Swivel Joint / Knuckle joint For Wireline Tool String 1.25" - 2.5"​

The Swivel Joint is the knuckle joint, as the part of wireline tool string, the swivel joint is used to minimize the line twist when running in and and pulling out of the well. It is usually located below rope socket and the bearings permits rotational movement when maintaining longitudinal rigidity in the tool string. This design is suitable to handle impact from heavy upwards and downward jarring.
The swivel joint has a double fishneck feature and standard pin and box thread.The swivel joint ensures free rotation of downhole tool string assemblies, capable of withstanding high impact forces, suitable for use with the latest generation of high impact jars and reduces the build of torque in the tool string. Heavy weight Swivel Joint is available by request.

Specifcation of Swivel Joint / Knuckle joint

ZZ TOP Oil Tools Co., Ltd located in XI’AN City in China, we are in full service on design, production and supply of oilfield downhole tools and Wellhead Equipment.

Over more than 10 years, we become a fast growing organization, now our two sub-factories, equipped with CNC lathes, Miller, deep-hole drilling &boring machine and other advanced machines, have enough production capacity to meet the customers’ requirement. And we build a professional & strong team including technical, sales, logistic and leading management department, which make our company success of manufacturing and providing cost-effective downhole tools and create added value for customers around the world.

Now our tools are supplied to worldwide and enjoy the good reputation.We always focus on providing the our clients with highly efficient & expertized service and approach each enquiry with meticulous attention to technical specifications and insist on “Traceability, Serialization” for each tools. We will keep innovating and providing more durable products and reliable service for worldwide customers.