مضخة هيدروليكية A28V0130 لـ حفارة Caterpillar E320GC,EC320, EC323 ,EC326GC

The E320GC’s hydraulic system is engineered for high productivity through a simplified design. It utilizes proven load-sensing technology to precisely match hydraulic pump output with the machine's load demands, thereby minimizing hydraulic losses.

Efficient Hydraulic Design: The simplified pump assembly reduces redundant control lines; this not only lowers the failure rate but also makes routine maintenance—such as checking filter elements and replacing hoses—quicker and more convenient.

Automatic Pressure and Flow Balancing: The system operates continuously at a pressure of 350 bar. Coupled with an automatic idle function, the engine speed drops and pump displacement decreases when the machine is not actively working, significantly reducing fuel consumption.

Optimized Control Feel: Despite belonging to the GC (General Construction) series, the electronically controlled variable-displacement pump delivers excellent responsiveness, providing smooth control during grading operations and ample breakout force during excavation.

High Adaptability: The pump structure is reinforced for demanding operating conditions, offering robust dust and vibration resistance while meeting Caterpillar’s ​​unified global quality standards for heavy equipment.

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!