31M8-40020 31M8-40021 31M8-40022 31M6-60010 Travel Motor Assy TM07 Final Drive

Product Specification

31M8-40020 31M8-40021 31M8-40022 31M6-60010 Travel Motor Assy TM07 Final Drive Device R55-3 R55-7 R55-7A R55-9 Excavator Parts

Product Description

The hydraulic pump assembly of GVO brand for the main pump of the R55-3 R55-7 R55-7A R55-9 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 is specifically designed for R55-3, R55-7, R55-7A, and R55-9 small excavators. As the power core of the entire machine's hydraulic system, it is developed and manufactured strictly in accordance with the dimensions and technical parameters specified in the drawings. The installation flanges, oil ports, and control interfaces are all consistent with the original vehicle components, eliminating the need for modifications to the pipelines, brackets, and electronic control circuits. It can directly replace the original vehicle and perfectly adapt to the load sensing hydraulic control system equipped with this series of machines.

The pump body shell is made using a high-strength cast forging one-piece molding process. The internal pistons, cylinder bodies, flow distribution discs, and inclined discs, as well as other core friction components, are made from high-maintenance alloy materials. They undergo multiple heat treatment processes such as precision mirror grinding and vacuum carburizing and quenching, which can stably withstand continuous high-pressure impacts in various engineering scenarios such as municipal excavation, landscaping, earthwork backfilling, and crushing operations. It can operate continuously in complex construction sites with dense dust, muddy and wet conditions, and significant temperature fluctuations, effectively reducing the wear rate of internal precision parts and prolonging the overall service life of the pump body, thereby minimizing the project delays and additional maintenance costs caused by hydraulic failures of small excavators.

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.