This Joint Seal (Part No. 86795168) is a critical sealing component engineered specifically for hydraulic rock drills—the workhorse equipment of surface mining, underground drilling, and quarrying operations. It creates an airtight, watertight barrier between drill joints, hydraulic line connections, and motor housing interfaces. Most importantly, it directly addresses two of the most common and costly issues facing drill operators: hydraulic fluid leakage and dust intrusion. These problems not only reduce drill efficiency but also accelerate wear on internal components, leading to frequent repairs and extended downtime.
Durability is a top priority of this joint seal, and it delivers on that promise with premium materials and precision manufacturing. The seal uses a high-strength, wear-resistant elastomer blend that withstands extreme conditions: high hydraulic pressure up to 350 bar, temperature fluctuations from -20°C to 120°C, and constant exposure to abrasive rock dust, gravel, and moisture. Unlike generic seals that often crack or deform under stress, this part maintains its structural integrity even during prolonged, heavy-duty use. Additionally, it features a reinforced edge design that resists tearing during installation and removal, further extending its service life.
Easy maintenance is another key advantage that sets this joint seal apart from competitors. We manufacture it to strict original equipment manufacturer (OEM) standards, with precise dimensions that match hydraulic rock drill assemblies perfectly. Technicians do not need to modify the drill or use specialized tools during replacement—they can simply remove the worn seal and install the new one in minutes. This streamlined process cuts down on maintenance time and labor costs, getting drills back to operational status faster.
Reliability is guaranteed with this Joint Seal 86795168. It maintains consistent sealing performance throughout its service cycle, even in the harshest mining environments. By preventing fluid leaks, it ensures the hydraulic system operates at optimal pressure, which maximizes drill power and penetration rate. By blocking dust intrusion, it protects sensitive internal parts like pistons, valves, and cylinders from premature wear. The end result is a significant reduction in unplanned downtime and a lower total cost of ownership for mining operations.
This Joint Seal 86795168 works with most hydraulic rock drill models used in the mining and construction industries. Its primary applications include sealing drill rod joints, hydraulic line connections, motor housing interfaces, and cylinder end caps—all critical areas where even small leaks can lead to equipment failure. It fits major drill brands, making it a versatile replacement part for both OEM maintenance and aftermarket repair needs. Whether you operate a handheld hydraulic rock drill for small-scale quarrying or a heavy-duty rig for large underground mining projects, this seal delivers the performance and reliability you need to keep operations running smoothly.
Mining and drilling operations demand consistent, high-performance parts—and this joint seal is designed to meet that demand, with a focus on quality, durability, and ease of use. We conduct rigorous testing on every batch to ensure compliance with industry standards. Plus, we offer flexible ordering options for both small and large quantities, making it easy to stock up on replacement parts and avoid costly delays.
