This essential sealing component is a high-performance, OEM alternative O-RING from the Hugeminer line of durable mining spare parts. It is meticulously engineered to meet or exceed the original equipment specifications for sealing integrity and longevity in demanding operating environments.

The specific identity for this vital part is 663312500, also referenced simply as 663312500 for internal system searches. Its primary application is within various hydraulic systems of Atlas Copco rock drilling and construction equipment, ensuring optimal fluid containment and preventing leaks that could compromise system efficiency.

As a certified OEM Replacement, this O-RING provides a cost-effective alternative without sacrificing the reliability required for heavy-duty machines like the Atlas Copco Boomer L2 C jumbo drill. Regular replacement of seals like the 663312500 is crucial for proactive maintenance and minimizing expensive downtime on your job site.

An O-ring is a mechanical gasket in the shape of a torus (a doughnut) designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. This simple component is one of the most critical elements in hydraulic and pneumatic systems, responsible for preventing the escape of fluids or gases. The effectiveness of the 663312500 O-RING depends on the material's chemical compatibility with the fluid, the application's pressure, and temperature. Hugeminer ensures all seals use high-grade materials to withstand the harsh conditions of mining and construction machinery.

Equipment: Atlas Copco Boomer 282 (Drilling Jumbo)

Fault: Significant drop in feed pressure on one boom.

Diagnosis: This often indicates internal leakage within the hydraulic cylinder or control valve for the feed system. Worn or damaged seals, such as the 663312500 or associated seal kits, are the most common cause of bypassing oil.

Resolution Steps:

1. Isolate the faulty cylinder and relieve hydraulic pressure.

2. Inspect the relevant control valve for signs of external leakage.

3. If leakage is internal, disassemble the feed cylinder.

4. Carefully replace all internal seals, including the rod seal, piston seal, and any internal O-RINGS (like the 663312500), ensuring correct orientation and proper lubrication with clean hydraulic fluid.

5. Reassemble, recharge the system, and cycle the boom to check for smooth operation and restored pressure.

Shandong Jufengyuan Machinery (Hugeminer) is a leading international provider of high-quality, durable spare parts for heavy industrial and mining machinery. Our business is founded on providing reliable OEM Quality Replacement Parts directly from the Source Manufacturer, specializing in underground drilling spares and hydraulic equipment components.

We proudly supply a vast inventory including Sandvik Parts, comprehensive Atlas Parts (e.g., for the Boomer and Roc series), Epiroc Parts, and engine components for Cummins Parts and Deutz Parts, alongside spares for Caterpillar Parts, Komatsu Parts, and Hitachi Parts. Furthermore, we support the rock drilling industry with Montabert Parts and Furukawa Parts. Our catalog extends to construction and earthmoving equipment, covering Volvo Parts, Liebherr Parts, and components for Hyundai Parts, Metso Parts, Sany Parts, and XCMG Parts. We are your one-stop source for durable equipment accessories, ensuring cost-effective machine maintenance and reliable global mining spare parts export.