Time: 2025-08-27 13:48:46
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Your Guide to Maximizing Excavator Performance
At Tonkee Machinery Co., Ltd., we understand the critical role that a well-functioning hydraulic system plays in the efficiency and longevity of your heavy machinery. For owners and operators of Komatsu PC200-6 and PC450 excavators, the swing motor hydraulic pump is the heart of the machine's rotational power. Its components are fundamental to the smooth and precise operation required for demanding job sites. Neglecting these parts can lead to costly downtime and reduced productivity. That's why we're proud to offer a comprehensive range of high-quality, hot-sale hydraulic pump parts designed to meet the rigorous demands of these powerful machines.
The PC200-6 and PC450 are iconic models in the Komatsu lineup, known for their reliability and robust performance. However, like any mechanical system, wear and tear are inevitable. The swing motor hydraulic pump, in particular, is subject to immense pressure and continuous movement, making its components a key focus for maintenance and replacement. Our selection of parts, including cylinder blocks, pistons, retainers, and valve plates, are manufactured to strict specifications to ensure they meet or exceed OEM standards. This guarantees a perfect fit and reliable performance, restoring your excavator's rotational power to its full potential.

Choosing the right hydraulic pump parts isn't just about replacing a broken component; it's an investment in your equipment's future. Substandard parts can cause premature failure, damage adjacent components, and even pose safety risks. Our parts are made from durable materials, designed to withstand high pressure and temperature, ensuring a long service life. By investing in quality, you reduce the frequency of repairs, minimize operational costs, and, most importantly, keep your projects on schedule.
Understanding the function of each part is crucial for effective maintenance. Here is a categorized overview of the essential components we offer, with their primary functions highlighted. Whether you're a seasoned mechanic or a machine owner, this table will help you identify and select the right parts for your repair needs.
| No. | Part Name | Application | Function |
|---|---|---|---|
| 1 | Cylinder Block | PC200-6, PC450 Swing Motor | Houses the pistons and creates the hydraulic chamber for fluid compression. |
| 2 | Piston Shoe | PC200-6, PC450 Swing Motor | Transmits force to and from the swash plate, converting linear motion to rotational motion. |
| 3 | Retainer Plate | PC200-6, PC450 Swing Motor | Keeps the piston shoes securely in place within the cylinder block. |
| 4 | Swash Plate | PC200-6, PC450 Swing Motor | An angled plate that causes the pistons to reciprocate as the cylinder block rotates. |
| 5 | Valve Plate | PC200-6, PC450 Swing Motor | Controls the flow of hydraulic fluid in and out of the pump's chambers. |
| 6 | Seal Kit | PC200-6, PC450 Swing Motor | Prevents hydraulic fluid leakage and protects internal components from contamination. |
Tonkee Machinery Co., Ltd. is more than just a parts supplier; we are a partner dedicated to keeping your machinery running at its peak. Our hot-sale PC200-6 and PC450 swing motor hydraulic pump parts are meticulously sourced and inspected to provide you with the best possible solutions. We are committed to providing exceptional value and service, helping you maintain your equipment with confidence. Explore our full range of parts today and experience the difference that quality and expertise can make.