400914-003GGB 410105-00031E 400914-00366 Hydraulic Pump A8VO225 Main Pump Assembly Piston Pump DX500-9C DX520-9C Excavator Parts

400914-003GGB 410105-00031E 400914-00366 Hydraulic Pump A8VO225 Main Pump Assembly Piston Pump DX500-9C DX520-9C Excavator Parts

Product Description

The hydraulic pump assembly of GVO brand for the main pump of the DX500-9C DX520-9C excavator is compatible with the model hydraulic pump components. It features high-quality performance.

The products are directly supplied from the manufacturer without any middlemen adding extra prices. The cost performance is far superior to similar products. There is an ample stock of goods in stock, and once you place an order, the order will be quickly processed and dispatched. There is no need for long waiting periods.

The entire machine undergoes strict pressure testing upon leaving the factory, ensuring stable quality. At the same time, we provide comprehensive after-sales warranty, and the technical team will follow up throughout the process. Maintenance inquiries can be responded to at any time.

Product Description

This main hydraulic pump, designed to be compatible with large-tonnage excavators such as DX500-9C and DX520-9C, is the power core assembly of the entire machine's hydraulic system. It directly determines the digging force of the entire machine, the smoothness of compound actions, and the overall operating efficiency.

The pump body is made of high-strength cast steel and is formed by a single casting process. The housing has undergone aging treatment, demonstrating outstanding resistance to high-pressure impact and fatigue deformation. It can withstand the harsh working conditions of mining sites with high pressure, high impact, and a lot of dust for a long time. The internal core friction pairs such as the cylinder body, piston, flow distributor plate, and return plate are all made of high-hardness wear-resistant materials. They undergo high-precision grinding processing and are strictly controlled in the clearance to significantly reduce leakage loss inside the pump and ensure stable volumetric efficiency during long-term heavy-load operations. The entire set of regulators integrates dual control functions of pressure and flow, which can dynamically adjust the output flow and pressure according to load changes, achieving heavy-load high-pressure output and automatic oil control in light-load conditions. This ensures the balance of excavation impact force and fuel economy, and fundamentally improves common faults such as slow movements, insufficient digging power, stuck vehicles, and inability to generate pressure in the equipment.

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Company Introduction

The GVO brand is a professional manufacturer of hydraulic components. Its product line is comprehensive, mainly including pilot pumps, gear pumps, relief valves and safety valves, piston hydraulic pumps, various electrical components and hydraulic accessories. It also supplies engine assemblies, traveling assemblies, rotating assemblies, distribution valves and other complete vehicle components of excavators.

We adhere to the factory direct supply model, eliminating all middleman links and without any layer-by-layer price hikes. As a source manufacturer, we strictly control every production process and adhere to the quality bottom line. We will never damage the brand reputation for short-term interests. While ensuring first-class quality, we offer customers highly competitive factory prices, sufficient in-stock, stable and efficient delivery.

We treat every partner sincerely and build a full-process service system: providing model matching and working condition selection technical support before sales; following up on order progress during sales to ensure on-time delivery; responding quickly to fault inquiries and quality assurance services after sales. All problems will be handled efficiently and properly. If you have any needs, we are always on standby and dedicated to protecting you.