GVO AT522444 AT522445 AT302661 AT384094 Hydraulic Pump Main Pump Assembly Piston

Product Specification

GVO AT522444 AT522445 AT302661 AT384094 Hydraulic Pump Main Pump Assembly Piston Pump 620 670 770 870 Excavator Parts

Product Description

The hydraulic pump assembly of GVO brand for the main pump of the 620 670 770 870 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, which is compatible with 620, 670, 770 and 870 construction machinery, serves as the core power component of the entire hydraulic system of the equipment. It directly determines the power output of the equipment during operation, the sensitivity of response, and the stability of the entire machine's operation.

The pump body is made by casting high-strength alloy cast iron as a whole. The shell has excellent resistance to impact and high-pressure deformation, and can withstand long-term high-load, dusty and temperature-differential harsh working conditions on the construction site.

The internal flow distribution plate, piston, cylinder body and other core friction pairs are processed by precise grinding technology, combined with high-precision gap control, to reduce internal volume loss and minimize internal leakage, ensuring stable volumetric efficiency during long-term operation of the pump body. An integrated electronic control displacement regulating valve is built inside, with fast response speed. It can dynamically adjust the output flow according to the equipment's load, achieving heavy-load high-pressure output and light-load energy-saving oil control, balancing strong operation power and fuel economy. This effectively improves common fault phenomena such as (pressure build-up), slow movement and insufficient pressure on the entire machine.

Packaging And Transportation

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.