

Central Filling Cylinder
Центральный заправочный цилиндр
Cilindro de llenado central
The 803089790 Central Filling Cylinder is a robust, precision-engineered grease distribution hub designed specifically for XCMG hydraulic excavators. This auxiliary component provides a single-point grease connection for the entire centralised lubrication system, allowing operators to efficiently lubricate multiple pivot pins and bearings in a fraction of the usual time. Manufactured from high-strength steel with a corrosion-resistant coating, the 803089790 central filling cylinder ensures consistent grease delivery, reduces maintenance labour, and extends the service life of critical wear components in demanding construction and mining environments.
The 803089790 Central Filling Cylinder is designed to distribute grease evenly through a network of precision‑drilled channels and hoses, ensuring that every connected lubrication point receives the correct amount of lubricant. Its robust construction and high‑pressure capability (up to 40 MPa) allow it to push grease through long lines and overcome blockages from old, hardened grease. This component is a direct OEM replacement, restoring original lubrication efficiency and simplifying routine maintenance.
Crafted from high‑quality carbon steel with a zinc‑nickel plating, the 803089790 cylinder offers excellent resistance to corrosion, impact, and abrasion. The precision‑machined internal passages and seals prevent leakage and contamination, ensuring that only clean grease reaches the pivot points. Its compact design and standard G 1/4” inlet thread make it easy to integrate into existing lubrication systems, providing a reliable, long‑lasting solution for excavator maintenance.
The 803089790 Central Filling Cylinder is engineered to operate reliably in extreme temperatures and harsh conditions, making it suitable for use in all climates. Its corrosion‑resistant finish protects against rust and chemical attack, ensuring consistent performance over the machine’s lifetime. By choosing this genuine XCMG component, operators can streamline their lubrication procedures, reduce the risk of under‑lubrication, and significantly extend the life of the excavator’s moving parts.
Designed for straightforward installation and service, the 803089790 central filling cylinder features precisely threaded ports and comes with all necessary seals. Its direct OEM fitment ensures a perfect match with the original lubrication lines, eliminating the need for modifications. This part is essential for maintaining optimal performance and reducing downtime associated with manual greasing.
The 803089790 Central Filling Cylinder is the result of thoughtful engineering, combining a compact form factor with high‑pressure grease distribution capabilities. Its internal passages are designed to minimise flow resistance, ensuring that grease reaches all connected lubrication points with minimal pressure drop. The cylinder’s robust construction and precision‑machined ports allow for reliable connection to standard grease hoses, simplifying the installation process. This design not only saves time during maintenance but also ensures that each pivot pin receives consistent lubrication, reducing wear and extending component life.
The cylinder’s high‑pressure rating of 40 MPa ensures that it can push grease through long lines and overcome any blockages caused by old, hardened grease. This capability is essential for maintaining effective lubrication in large excavators where grease lines can be several metres long. By using the 803089790 central filling cylinder, operators can avoid the time‑consuming process of manually greasing each pin individually, significantly improving maintenance efficiency.
One of the primary benefits of the 803089790 Central Filling Cylinder is its ability to streamline maintenance operations. With a single, easily accessible grease point, operators can lubricate the entire excavator in a matter of minutes, compared to the hours required for manual greasing. This efficiency not only reduces labour costs but also minimises machine downtime, allowing the excavator to return to work sooner. The cylinder’s clear marking and accessible location make it simple for operators to identify and use, even in low‑light conditions.
The 803089790 Central Filling Cylinder is built to withstand the harsh conditions of construction and mining sites. Its steel body is protected by a zinc‑nickel plating that offers superior corrosion resistance compared to standard zinc coatings. This ensures that the cylinder remains functional and free from rust, even when exposed to moisture, chemicals, and abrasives. The internal seals are designed to prevent grease leakage and to keep contaminants out, ensuring that only clean, fresh grease reaches the pivot points.
The cylinder’s robust construction also resists physical damage from impacts and vibrations, which are common in heavy equipment operation. By protecting the integrity of the lubrication system, the 803089790 cylinder contributes to the overall reliability and longevity of the excavator’s moving parts, reducing the frequency of unscheduled repairs and component replacements.
The 803089790 Central Filling Cylinder is designed to integrate seamlessly with XCMG’s centralised grease systems. Its standard G 1/4” inlet and G 1/8” outlet ports are compatible with common grease hoses and fittings, allowing for easy connection and integration. This compatibility ensures that the cylinder can be used as a direct replacement for the original part, maintaining the functionality of the centralised lubrication system. Regular use of this cylinder helps ensure that all pivot points are adequately lubricated, preventing premature wear and extending the service life of the machine.
The 803089790 Central Filling Cylinder is a vital component for maintaining the lubrication system of XCMG hydraulic excavators, including models such as XE210, XE240, XE305, and other XE series machines. It is used in the centralised grease system that lubricates the bucket linkage, arm pivot, boom joints, and swing bearing, ensuring smooth operation and extended component life. In heavy-duty applications such as mining, quarrying, and demolition, proper lubrication is essential to prevent costly wear and tear.
The 803089790 cylinder ensures that lubrication is delivered quickly and consistently, reducing the time spent on maintenance and increasing machine availability. By maintaining proper lubrication, operators can extend the service life of pins, bushings, and bearings, reducing overall maintenance costs. When replacing a damaged or worn central filling cylinder, using the genuine 803089790 part ensures correct thread sizes, pressure ratings, and material quality. Trust only genuine XCMG components to maintain the reliability of your equipment.
Installing the 803089790 Central Filling Cylinder is a straightforward process. Before installation, ensure that the lubrication lines are clean and free from old, hardened grease. Apply a small amount of thread sealant to the inlet fitting and install it into the cylinder. Connect the outlet lines to the appropriate ports, ensuring that they are securely tightened to prevent leaks. After installation, prime the lubrication system by pumping grease through the cylinder until it exits the farthest lubrication point, purging any air and ensuring full grease distribution.
Regularly check the cylinder for signs of leakage or damage, and replace it if any issues are found. Keep the cylinder clean and free from debris to prevent contamination of the grease system. Proper maintenance of the central filling cylinder is essential for the long‑term health of the lubrication system. Always use the genuine 803089790 cylinder to ensure correct fitment and performance, and keep a spare cylinder on hand to minimise downtime during service.
The 803089790 Central Filling Cylinder is manufactured in ISO 9001 certified facilities under strict quality control. The steel is sourced from approved suppliers and undergoes chemical and mechanical testing. The machining and assembly processes are precision‑controlled to ensure consistent quality and performance. Each cylinder is pressure‑tested to verify its sealing integrity and is inspected for dimensional accuracy and thread quality.
The zinc‑nickel plating is applied uniformly and tested for adhesion and corrosion resistance. The seals are selected for compatibility with standard greases and for resistance to temperature extremes. These quality measures ensure that every cylinder provides reliable lubrication distribution and long service life. Using genuine XCMG 803089790 Central Filling Cylinders guarantees proper fit, performance, and system integrity. Counterfeit cylinders may have incorrect threads, poor sealing, or inadequate pressure ratings, leading to leaks and lubrication failures. Always source genuine parts from authorized XCMG distributors.
The 803089790 Central Filling Cylinder is an essential component for simplifying and improving the lubrication process on XCMG hydraulic excavators. As a non‑engine auxiliary part, it enables quick, efficient greasing of multiple pivot points, reducing maintenance time and ensuring consistent lubrication of critical wear components. Its robust construction, high‑pressure capability, and exact OEM fitment make it an indispensable part of any maintenance program.
With its durable steel housing, corrosion‑resistant finish, and reliable sealing performance, this central filling cylinder offers exceptional durability and value. Choosing the genuine 803089790 cylinder safeguards your equipment from lubrication‑related wear and reduces maintenance costs. Always source genuine XCMG parts from authorized distributors to guarantee authenticity and compliance with OEM specifications. Whether for planned maintenance or emergency replacement, the 803089790 central filling cylinder is the trusted choice of professionals who value quality, reliability, and long‑term performance in their heavy equipment.