Centek UHD Stop Collar — Ultra Heavy Duty Holding Power for the Toughest Wells
The Centek UHD Stop Collar is engineered for the most demanding well environments, delivering exceptionally high holding forces where reliability is non-negotiable. Designed specifically for challenging applications — including flush casing joints, where traditional stop collars struggle — the UHD provides a robust, dependable solution without requiring specialist installation procedures.
Built on Centek’s proven approach to heavy-duty casing equipment, the UHD Stop Collar uses a precision-machined design with multiple sets of high-strength set screws, delivering ultra-high holding force while maintaining a secure, slip-resistant connection under extreme axial and lateral loads. This makes it a formidable competitor to other high-holding-force devices on the market.
The UHD Stop Collar is ideal for operators who need absolute confidence that their centralizers will remain securely positioned throughout running, rotation, and cementing operations without the need for specialist installation equipment.
UHD stop collars are developed as counterparts to the S2-HD heavy duty centralizer.
UHD stop collars are available in sizes from 7" to 11 7/8"
For more information talk to our Product Service Experts today or use our Product Finder to find the right product for your application

"The Centek UROS-CT centralizers performed perfectly, allowing us to reach TD smoothly with tight clearances and no drag-related problems.
The cement bond log confirmed a good cement job, and overall borehole stability remained excellent throughout the operation. This equipment combination played a key role in achieving a successful, trouble-free liner run.”
Read more..."The redesigned Centek S2 Hinged centralizer performed great, supporting the RIH and providing the stand-off needed for a good cement job and zonal isolation, while in the same time reducing the costs associated with transport, storage and installation offshore"
Read more..."No issue at all to get casing to the bottom…managed to rotate while cementing approximately 20rpm, 10-15kft lbs torque. Will be using the same for the next 2 wells"
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"Due to the tight tolerances and casing specifications, the UROS–CT was modelled. The simulations ran confirmed this was the best solution for the task at hand. Excellent technical support coupled with no downhole issues meant another positive outcome using Centek."
Read more...Submit your well details to request a tailored Centek simulation and receive expert product recommendations for your application.
The Centek Product Finder is your go-to tool for exploring our full range of centralizers and stop collars available worldwide. Designed to make product selection simple, it provides instant access to key dimensional and performance data, helping you compare options and identify the best fit for your well design. Whether you’re looking for high-performance solutions for challenging conditions or standard designs for everyday applications, the Product Finder gives you the detail you need to make confident, informed choices.
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