عجلة مشط التبن 723-19-13501 لـ حفارة Komatsu PC30 PC50 PC35MR PC40 PC50MR-2 PC30MR-2

Integrated design: The valve group integrates the main relief valve (Main Relief Valve), load holding valve and compensation valve. For PC-MR (short tail swing) models, these valve groups are structurally optimized to fit into compact space layouts.

Micro-operated performance: As part of Komatsu's CLSS (Closed Center Load Sensing System), this valve group is able to achieve "flow with load variation". This means that whether you're doing fine grading or digging at full capacity, the feel remains consistently smooth.

High responsiveness: Able to handle subtle pressure changes from the pilot system, ensuring millimeter-level excavation operations in narrow spaces.

Guangzhou Jianming Machinery Equipment Co., Ltd.

With 20 years of solid practical experience, we are experts in the field of machinery power systems and components.

We began as a small machinery repair shop. Over the past two decades, we have accumulated a wealth of experience through successful projects and maintenance work worldwide. Thanks to our hands-on experience in solving complex mechanical issues, we have earned widespread acclaim and grown into a comprehensive enterprise employing over 200 professionals.

We deeply understand the challenges equipment faces under extreme conditions and possess extensive practical experience and expertise in the following areas:

Heavy Machinery Power Upgrades and Retrofitting: We provide customized engine retrofitting and replacement solutions for excavators, bulldozers, loaders, and other heavy equipment. We are proficient in major power systems, including brands such as Caterpillar, Kobelco, Yanmar, Cummins, Isuzu, Perkins, Deutz, and Volvo.

Mining Equipment Maintenance and Optimization: We offer professional repair, maintenance, and power optimization strategies specifically designed for heavy-duty mining equipment operating under high-load conditions.

Agricultural and Irrigation System Solutions: We assist farms in the efficient design and assembly of irrigation systems, as well as in troubleshooting and upgrading power units for various types of agricultural machinery.

Leveraging our extensive technical expertise, we are also a robust supplier of spare parts:

Comprehensive Machinery Parts Supply: With our deep understanding of maintenance, we prioritize quality above all else. We offer a wide, carefully curated range of parts for excavators and heavy machinery—covering hydraulic systems, fuel systems, internal engine components, and electrical systems—to meet all your one-stop procurement needs.

Our wealth of practical experience and robust supply chain system are our most valuable assets. Whether you are facing complex mechanical challenges or require reliable spare parts, Jianming Machinery has the expertise to help you succeed!