PC220LC-6LE PC220-6LE Hydraulic Bucket Cylinder for Komatsu Excavator Spare Parts 206-63-03130 Aftermarket High Quality

Operating at the absolute tip of the excavator attachment group, the bucket cylinder is directly subjected to aggressive curling forces and harsh external vibrations while tearing through compacted earth, shale, and rocky backfill. This premium aftermarket hydraulic cylinder is purpose-built as a direct drop-in replacement for 22-ton class Komatsu equipment. It features complete cross-compatibility with the Komatsu PC220-6LE and PC220LC-6LE crawler excavators. Designed to align flawlessly with your factory power links, guide links, and standard bucket pins, this assembly restores original factory cycling responsiveness and high breakout force to your front attachment.

Manufactured from high-tensile, cold-drawn seamless steel tubes, this cylinder assembly is engineered to precise geometric tolerances to eliminate internal oil blow-by. The incorporation of rigorous certified quality systems guarantees absolute part-number interchangeability and field reliability under extreme stress.

Upgrading your 22-ton fleet with this heavy-duty bucket cylinder eliminates the frequent headache of front-end oil weeping and sudden bucket drifting under heavy load. The cylinder barrel is bored and roller-burnished to achieve an internal surface roughness below $0.2,mutext{m}$, optimizing oil film retention and drastically reducing seal friction. The high-yield carbon steel rod features a deep case-hardened protective shell to resist rock chipping, scratch damage, and scoring from flying quarry fragments. Additionally, high-performance internal end-of-stroke cushioning mechanisms effectively buffer high-impact deceleration forces, protecting your bucket links and cylinder eye welds from long-term stress fractures. Backed by a flexible 1-piece MOQ and an ironclad 1-year warranty featuring free parts replacement, it provides superior service life at an outstanding value.

This front-end assembly reflects the strict manufacturing and engineering benchmarks of Belparts, an established independent brand dedicated exclusively to the international construction machinery trade since September 2013. Operating from our core facilities in Guangzhou, China—which combine strategic corporate offices, a technical storefront, and a large-scale inventory warehouse—we carry deep stock reserves of high-demand items to ensure instant global processing. We focus our technical engineering power entirely on excavator hydraulic parts, delivering both Original Genuine items and premium, high-durability aftermarket solutions to optimize fleet maintenance budgets.

Our comprehensive catalog features 12 core equipment categories: Hydraulic Pumps, Control Valves, Final Drives, Travel Reductions, Swing Motors, Swing Reductions, Slew Bearings, Hydraulic Cylinders, Gear Parts, Engine Assemblies, and ECUs. These precision assemblies are built for absolute fleet versatility, fully supporting 16 world-renowned heavy machinery giants including Komatsu, Hitachi, Yanmar,  Kobelco, Doosan, Sany, Hyundai, LiuGong, Takeuchi, Kubota, XCMG, and JCB. Trusted across more than 150 nations, Belparts keeps its product lines sharp by regularly exhibiting at major global industrial expos in countries like Brazil and France. To minimize machine downtime, our Guangzhou shipping hub manages highly flexible transit paths: Express Air Freight routes resolve critical emergency breakdowns in 3–7 days, while our Sea and Train Freight networks supply economical bulk restocking in 30–45 days.

A: Since quick-couplers or specialized mass-excavation link geometries can occasionally impact the required pin sleeve thickness or closed length tolerances, verification before dispatch is highly recommended. Please send your excavator's full frame serial number and a quick picture of your current cylinder body stamps to our Guangzhou engineering team; we will double-check the original technical blueprints to ensure a 100% accurate, drop-in match.

A: After thoroughly cleaning your lines to remove any metallic residue from the previous cylinder failure and satisfying your 1-year warranty provisions, it is crucial to manually pre-charge the new cylinder housing with fresh, clean oil before torquing the high-pressure hoses. Once mounted, run the machine at low idle. Stroke the bucket cylinder slowly back and forth through approximately 85% of its total travel length without hitting the mechanical end-stops; this purges compressed air bubbles safely back to the reservoir before full operating pressure is applied.

A: Our ISO9001 certification enforces strict, audited metrics across our entire production timeline. Every heat-treated batch of seamless steel tubing receives ultrasonic structural soundings to detect hidden flaws, and every fully assembled cylinder undergoes an extensive dynamic dual-chamber drift test under maximum relief pressure. This ensures zero internal oil bypass, guaranteeing that your bucket holds its precise digging or grading angle perfectly without creeping under heavy load.

A: For the quickest component release to catch our next scheduled 3–7 day express air departure from Guangzhou, processing your order via Trade Assurance or PayPal provides instant verification and maximum financial security. We also manage traditional international T/T bank transfers for bulk stock containers, ensuring that all commercial invoices and custom clearance declarations are prepared flawlessly for your import brokers.