804414138 hose assembly XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Hoses (804414138): The Flexible Transmission Core of the Hydraulic System

In the hydraulic system of the XE2000 large mining excavator, the hose assembly serves as a “flexible bridge” connecting fixed pipelines and moving parts. Its pressure resistance and flexibility directly determine the dynamic response efficiency of the hydraulic system. XCMG’s original hose assembly (part number: 804414138) is specially customized for the complex working conditions of this machine. With its excellent high-pressure resistance, flexible layout adaptation, and robust environmental adaptability, it becomes a key guarantee for efficient hydraulic oil transmission.

Multi-layer reinforced structure, safe and reliable high-pressure transmission

The XE2000 excavator’s hydraulic system operates at a pressure of 35MPa, with instantaneous impact pressure reaching 42MPa, placing stringent requirements on the pressure resistance of the hoses. This hose assembly features a five-layer composite reinforced structure: the inner tube is made of high-pressure resistant hydrogenated nitrile butadiene rubber (HNBR), possessing excellent oil resistance and aging resistance; the middle layer is reinforced with two layers of high-strength galvanized steel wire using a precision cross-braiding process, achieving a burst pressure exceeding 105MPa, far exceeding the actual working pressure of the system; the outer layer is covered with a wear-resistant neoprene rubber protective layer, with a tear strength ≥25kN/m, effectively resisting external friction and impact. Under high-pressure hydraulic impact conditions, the hose expansion is ≤3%, ensuring leak-free hydraulic oil transmission and avoiding equipment downtime and safety hazards caused by hose rupture.

Precise Dimension Control, Flexible Adaptation to Layout Requirements

The dynamic displacement of moving parts in the hydraulic system requires hoses to have precise length and bending performance. The 804414138 hose assembly uses CNC cutting and forming processes, with length tolerance controlled within ±5mm and bending radius error ≤10mm, perfectly matching the layout requirements of the XE2000 excavator’s hydraulic pipeline. To address the connection requirements of frequently moving parts such as the boom and stick, the minimum bending radius of the hose is optimized to 4 times the nominal diameter, maintaining smooth bending even at maximum stroke and avoiding lifespan reduction due to excessive stretching or twisting. The hose end fittings employ an automated crimping process with a crimping torque error of ≤3%, ensuring a secure connection between the fitting and the hose, preventing loosening under high-frequency vibration conditions and guaranteeing hydraulic oil transmission efficiency.

Original factory parameter matching ensures efficient system operation

As a core flexible component of the XE2000 excavator hydraulic system, the flow parameters and media compatibility of this hose assembly have been fully calibrated by the original manufacturer. Based on the viscosity characteristics and flow requirements of the hydraulic oil, the hose inner diameter accuracy is controlled within ±0.5mm, ensuring stable flow rate per unit time and reducing pressure loss by more than 12% compared to ordinary hoses. The interface dimensions of the hose and steel pipe assembly (fitter number 318307798) and transition joint (fitter number 318307471) are perfectly matched, forming a seamless hydraulic transmission network and avoiding turbulence and pressure loss caused by size incompatibility. Through simulation testing of the entire hydraulic system, the hose assembly perfectly adapts to the flow rate changes under different working conditions, ensuring precise response of the hydraulic actuators.

All-environment weather resistance, extending service life

Extreme temperatures, dust, and oil contamination in mining environments pose severe challenges to the weather resistance of hoses. This hose assembly has passed multiple extreme environment tests: It maintains good flexibility in a temperature range of -40℃ to 120℃, and shows no softening or deformation in high-temperature environments; after oil immersion testing (immersion in 120℃ hydraulic oil for 1000 hours), the volume change rate is ≤5%, and the hardness change is ≤10 Shore A; after UV aging testing (1000 hours), the outer rubber layer shows no cracking. In dusty and high-humidity mining environments, the hose’s outer layer is treated with an anti-dust coating, reducing wear caused by dust adhesion and extending its service life by more than 60% compared to ordinary hoses.

Stringent Quality Testing for Stable and Reliable Performance

XCMG implements full-process quality control for its 804414138 hose assemblies, requiring 20 professional tests from raw material intake to finished product delivery. Each hose undergoes 100% pressure testing (45MPa pressure holding for 5 minutes), leak detection, and burst testing to ensure the absence of pinholes, bubbles, and other quality defects. The assemblies also pass pulse fatigue testing (1 million cycles, pressure range 0-35MPa), bending fatigue testing (500,000 cycles), and ozone aging testing to ensure stable performance under long-term dynamic operating conditions. The products comply with international standards such as ISO 1436 and SAE J517, providing multiple safety guarantees for high-pressure operation of hydraulic systems.

XCMG XE2000 Excavator Hose Assembly (Part No. 804414138) – Featuring a multi-layered reinforced structure to withstand high-pressure transmission, precise dimensions to adapt to dynamic layouts, and all-environment protection to extend service life, it is an indispensable flexible transmission core for the hydraulic system of large mining excavators.

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318307823 drain oil pipeline

1 318307798 1 STEEL PIPE ASSEMBLY
2 318006991 1 PIPE CLAMP ASSEMBLY
3 803164240 1 FLANGE ASSEMBLY
4 804414138 1 HOSE ASS’Y
5 803164697 1 BLIND FLANGE
6 803103777 1 CONNECTOR
7 803131927 1 CONNECTOR
8 803150690 1 CONNECTOR
9 318307802 1 PIPE CLAMP ASSEMBLY
10 318307822 1 STEEL PIPE ASSEMBLY
11 318307821 1 STEEL PIPE ASSEMBLY
12 318307819 2 CONNECTOR ASSEMBLY
13 803100741 1 CONNECTOR
14 318307815 1 STEEL PIPE ASSEMBLY
15 803382159 1 HOSE ASS’Y
16 803194411 1 HOSE ASS’Y
17 804414141 1 HOSE ASS’Y
18 803281494 1 HOSE ASS’Y
19 804414139 1 HOSE ASS’Y
20 318307812 2 CLAMP ASSEMBLY
21 318307811 1 PIPE CLAMP ASSEMBLY
22 803164234 1 FLANGE ASSEMBLY
23 318307808 1 MAIN PUMP OIL DRAIN PIPELINE

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