Discover our top-tier hydraulic guide rings and sealing components specifically optimized for offshore drilling rigs and critical oil & gas equipment.
In the highly demanding realm of marine engineering, the Hydraulic Guide Ring for Offshore Drilling Rigs and Oil & Gas Equipment represents a cornerstone of mechanical reliability and operational safety. Unlike standard industrial applications, offshore drilling platforms operate in some of the most unforgiving environments on the planet. Deep-water exploration exposes machinery to extreme hydrostatic pressures, highly corrosive saltwater, abrasive drilling muds, and drastic temperature fluctuations. In these critical hydraulic systems, the primary function of a hydraulic guide ring (also known as a wear ring or bearing ring) is to absorb immense transverse and lateral loads. By doing so, it meticulously prevents metal-to-metal contact between the moving parts of hydraulic cylinders, such as the piston and the cylinder bore, or the rod and the cylinder head. This vital separation not only eliminates catastrophic scoring and galling of expensive metallic surfaces but also ensures the concentricity of the hydraulic assembly. Maintaining this perfect alignment is absolutely essential for optimizing the performance and extending the lifespan of the primary elastomeric or polymeric seals that keep the pressurized hydraulic fluid safely contained.
The commercial and industrial status of hydraulic guide rings within the global oil and gas equipment market has seen a profound transformation over the past decade. As global energy demands drive exploration into ultra-deepwater and harsh-environment offshore blocks, the financial stakes have never been higher. A single day of unplanned downtime on a modern offshore drilling rig—often caused by the premature failure of a simple hydraulic seal or guide ring—can result in millions of dollars in lost revenue and exorbitant repair costs. Consequently, Original Equipment Manufacturers (OEMs) and drilling contractors are completely rethinking their supply chains, moving away from commoditized, low-cost components in favor of highly engineered, premium sealing and guiding solutions. The market is currently experiencing a massive surge in demand for guide rings that strictly comply with stringent international standards, including those set by the American Petroleum Institute (API) and the International Organization for Standardization (ISO). This paradigm shift has elevated the hydraulic guide ring from a basic consumable to a highly scrutinized, mission-critical asset that dictates the overall uptime and profitability of offshore mega-projects.
| Main Market | North America, Western Europe, Eastern Europe, Eastern Asia, Oceania |
| Business Type | Manufacturer, Trading Company |
| No. of Employees | 300~500 |
| Annual Sales | 60,000,000 - 80,000,000 |
| Year Established | 1996 |
| Export p.c | 30% - 40% |
| Customers served | 100+ |

Shaanxi Kelong New Material Technology Co., Ltd. was established in 1996. It is a high-tech enterprise, integrating R&D, production and sales. The main products are combined sealing products, High Pressure Hydraulic Hose and Long wall Chock Haulers. The products produced are mainly applicated for coal mining, metal mining, also widely used in civil aviation, high-speed railway, wind power and other fields. The sealing products adopt the equipment and production technology of DMH Company in Austria. Hydraulic hose production base adopts a complete set of equipment imported from Italy, with an annual output of more than 15 million meters of various hydraulic hoses. Our total annual output value more than 58 millions of dollars. There are more than 500 employees. Has an independent R&D center to support OEM and ODM projects. The annual R&D investment accounts for more than 5.6% of the total revenue of the year. The main sales markets of our products are Asia, Oceania, East Euro and other regions, with ISO system and IRIS certificates. We look forward to working with coal main industry of Indonesia Enterprises and Importers.








To truly understand the value of a high-performance Hydraulic Guide Ring for Offshore Drilling Rigs and Oil & Gas Equipment, one must examine its deep application scenarios across the platform's most critical subsystems. These mechanical marvels are not just generic parts; they are highly specialized components tailored for specific, extreme-duty tasks.
On floating offshore rigs, such as drillships and semi-submersibles, the ocean's wave motion poses a constant threat to the structural integrity of the drill string. Active heave compensators and marine riser tensioners utilize massive hydraulic cylinders to maintain constant tension and decouple the vessel's vertical movement from the seabed equipment. The guide rings within these cylinders face relentless, high-frequency dynamic cycling and immense lateral forces. Premium guide rings ensure these massive pistons stroke smoothly without binding, delivering the hydrodynamic lubrication necessary to prevent catastrophic friction build-up during violent sea states.
The Blowout Preventer is the ultimate fail-safe mechanism in offshore drilling, designed to seal, control, and monitor oil and gas wells to prevent explosive blowouts. The hydraulic actuators that drive the BOP's shearing and sealing rams must operate with absolute certainty, often after sitting dormant in subsea environments for months. Guide rings in BOP cylinders must exhibit zero swelling in hydraulic fluids, exceptional extrusion resistance under hyperbaric pressures, and incredibly low breakout friction. This guarantees that when an emergency actuation command is sent, the rams deploy instantaneously without any mechanical hesitation.
The top drive is the mechanical heart of a modern drilling rig, providing the rotational force required to drill the wellbore. The hydraulic systems controlling the top drive's tilt, pipe handling, and torque wrenches are subjected to severe vibrations, shock loads, and abrasive airborne contaminants. Hydraulic guide rings deployed here must possess extraordinary compressive strength and wear resistance to maintain cylinder stability under heavy torsional stress, ensuring uninterrupted drilling operations and protecting the primary rod seals from rapid degradation.
Deep beneath the ocean surface, subsea production trees and manifolds rely on hydraulically actuated valves to control the flow of hydrocarbons. Replacing a failed seal at depths of 3,000 meters requires multi-million-dollar ROV (Remotely Operated Vehicle) interventions. Therefore, the guide rings used in subsea actuators are engineered for "life-of-field" reliability. They are manufactured from advanced composites that resist chemical degradation from sour gas (H2S), withstand near-freezing seabed temperatures, and provide flawless guiding to ensure the valves open and close perfectly every single time over a 20-to-30-year lifespan.

The sealing products adopt the equipment and production technology of DMH Company in Austria, ensuring precision, durability, and compliance with the highest international engineering standards.

Our hydraulic hose production base adopts a complete set of state-of-the-art equipment imported from Italy, empowering us to deliver unparalleled quality for high-pressure industrial and marine applications.
We take scientific and technological innovation and improve the scientific and technological content of products as our own responsibility, and strive to keep technology and products at the forefront of the industry. We look forward to working with you.
Inquiry NowThe evolution of the Hydraulic Guide Ring for Offshore Drilling Rigs and Oil & Gas Equipment is intrinsically linked to rapid advancements in polymer chemistry and materials science. Historically, traditional drilling equipment relied heavily on metallic wear rings, such as bronze or cast iron. While robust, these materials were prone to causing severe cylinder scoring when lubrication failed, and their heavy weight added unnecessary mass to subsea assemblies. Today, the industry has aggressively transitioned towards highly engineered thermoplastic and thermosetting composites. Materials such as Polytetrafluoroethylene (PTFE) compounded with carbon, bronze, or glass fibers offer an exceptionally low coefficient of friction, effectively preventing the dreaded "stick-slip" phenomenon in slow-moving, high-pressure hydraulic cylinders. Furthermore, Polyoxymethylene (POM) and phenolic fabric resins are being heavily utilized for their incredible load-bearing capacities, capable of withstanding the massive radial forces generated by shifting ocean currents and drilling vibrations.
Looking toward the future, the integration of Artificial Intelligence (AI) and smart sensor technology is poised to revolutionize how hydraulic guide rings are monitored in offshore environments. We are entering an era of predictive maintenance, where micro-sensors embedded within the hydraulic cylinder housings can continuously monitor the tribological performance and structural wear of the guide rings in real-time. By analyzing data on friction heat, acoustic emissions, and micro-vibrations, AI algorithms can accurately predict the remaining useful life of a guide ring, alerting rig operators to schedule maintenance long before a catastrophic seal failure occurs. This technological synergy not only maximizes the operational safety of offshore drilling rigs but also significantly drastically reduces the carbon footprint associated with emergency repairs and potential environmental oil spills. As drilling pushes into deeper, colder, and more hazardous waters, the demand for these ultra-reliable, smart-compatible hydraulic guide rings will continue to skyrocket, cementing their status as an indispensable technology in the global energy sector.
At present, the company's total assets are 600 million RMB, with an annual output value of 300 million RMB. There are more than 400 employees in the company, including nearly 180 engineers and technicians, more than 40% of the total number of college graduate and Enterprise R & D personnel accounted for 17.5%. In the past three years, R&D investment accounted for more than 7% of the total income of the year. The company is the top three in the domestic coal machine sealing industry, and high-pressure rubber hoses and Frame-type handling vehicles are expected to enter the top three within two years. The main products share 8% in domestic market. We will focus on technological innovation and continuously improve the technological content of products, so that the company's technology and products are always at the forefront. We will always sincerely welcome you to visit and cooperate with us together create a brilliant future!
Kelong New Material is a dynamic manufacturer and distributor of sealing solutions, supplying a wide range of standard and customized products and services to a vast range of industries. We have our own R&D center and technology center, which can produce customized products according to customers' needs. For different working environments and working conditions, we provide customers with specialized solutions on the basis of technical support.
Explore our full range of high-performance seals, guide rings, and hydraulic hoses engineered for the most demanding industrial and offshore applications.