عجلة مشط التبن لـ حفارة Volvo EC210

Flow Summation Technology: During boom lifting or rapid excavation, the control valve combines oil flows from both pumps, significantly increasing the operational cycle speed.

Boom/Arm Regeneration Circuit: During bucket free-fall or boom lowering, internal regeneration logic directs return oil straight to the inlet chamber, minimizing energy loss and preventing cavitation.

Negative Flow Control (NFC): The control valve regulates main pump displacement using a pressure signal (negative pressure signal) returned from the pump. When the control lever is in the neutral position, pump displacement is reduced to a minimum, resulting in substantial fuel savings.

High Reliability: Volvo control valves are manufactured using precision machining processes, with spool surfaces undergoing special hardening treatment to ensure highly accurate flow distribution over long periods of high-pressure operation.

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!