The front end of the excavator's working arm is equipped with a pile driver, powered by the excavator's hydraulic system. This configuration makes the operation of the excavator pile driver very convenient. Additionally, it can be designed and installed on an extended arm as required by the job, expanding the working range. Considering the structural performance requirements, the machine body is welded from high-quality low-alloy high-strength steel plates and precisely machined after heat treatment. The precise selection of core and critical components makes the excavator pile driver more durable, adaptable, and better suited to handling complex site environments. It features high-efficiency imported damping blocks, ensuring stable quality.

The operation of the pile driver can be completed independently by the excavator operator. The same set of equipment is used for both piling and pile extraction, with fast operation speeds, good mobility, and no need to disassemble for site transfer.

Given the wide range of equipment applications and the need to function effectively in harsh environments, the internal structure requires meticulous treatment. One of the key components not to be overlooked is the sealing device. The hydraulic system is the most common failure point in hydraulic excavators, particularly the hydraulic cylinders.

Leakage is a very serious issue in hydraulic systems. One effective way to address this problem is through the use of seals. Seals can reduce external leakage, preventing environmental contamination and stopping air from entering the hydraulic system, which would affect the performance of the hydraulic pump and the stability of hydraulic components. They also mitigate the issues of low volumetric efficiency and high oil temperatures caused by internal leakage. Therefore, the correct use of seals is crucial.

Based on their working principles, seals can be divided into non-contact seals and contact seals. The former mainly refers to gap seals, while the latter refers to contact seals.