Pistons, As integral components of pump trucks, pistons are critical and require frequent replacement. Engineered from
top-tier materials, they offer an extraordinary service life, handling up to 30,000 cubic meters. Our pistons stand unmatched in
resistance to wear, elasticity, and tear. Available in three premium materials: polyurethane, rubber, and rubber cloth.
The essential functions of piston sealing:
1. Sealing the cylinder
The piston sealing ring expertly seals the cylinder, preventing any leakage of high-pressure gas, thus ensuring the engine
runs smoothly. It also plays a crucial role in minimizing automobile exhaust emissions, greatly contributing to
environmental sustainability.
2. Preserving the lubricating oil film
During operation, the piston sealing ring sustains a vital lubricating oil film. This film significantly reduces friction and wear between
the piston and the cylinder liner, thus extending the engine's useful life.
3. Ensuring peak operating conditions
In synergy with the piston, the sealing ring stabilizes the piston's position, ensuring its optimal function
within the cylinder. This coordination boosts both engine performance and efficiency.


Changsha Lizheng Construction Machinery Co., Ltd.: Ideally located in Changsha, China's prestigious Machinery Capital, our illustrious company sets unparalleled industry standards with groundbreaking innovations and superior quality, establishing itself as a leader within the construction machinery sector.
Since 2009, we have been at the forefront of construction innovation, earning recognition for our groundbreaking advancements and unmatched craftsmanship, setting the industry on a path toward excellence.
Our mission is deeply rooted in an unwavering commitment to quality. We provide an extensive array of products, highlighting state-of-the-art concrete machinery engineered to meet the highest standards.
Our collection boasts exceptional pre-owned construction equipment and crucial accessories, each crafted with meticulous precision to elevate your projects to unmatched heights of excellence.
Our diverse product range is a hallmark of innovation, featuring cutting-edge equipment such as concrete pump trucks, advanced mixing plants, and revolutionary
sand-making machines, all ingeniously crafted to offer comprehensive solutions for seamless project execution.



1. Are you a trading company or a manufacturer?
With an unwavering commitment to excellence, we proudly function as a distinguished manufacturer, maintaining a facility that produces motors of unsurpassed quality, reflecting our dedication to superior craftsmanship.
2. How can we guarantee quality?
Our relentless dedication to superior quality is evident in our rigorous quality control protocols, meticulously enforced at every stage of production,
ensuring full compliance with our zero-tolerance policy for inferior products, guaranteeing that only top-tier offerings reach our esteemed clients.
We are committed to delivering exceptional products with unmatched efficiency and precision, upholding our promise to esteemed customers with unwavering integrity.
3. How long is your delivery time?
A: We tailor delivery timelines to fit your order's scale. Larger orders generally require 10-25 days post-confirmation, while smaller orders are expedited for prompt dispatch.
Experience seamless order processing, guaranteeing timely delivery of goods exactly when needed, enhancing satisfaction and operational efficiency.
Our dedicated commitment ensures that your goods arrive with unmatched swiftness, significantly enhancing your satisfaction through our exceptionally rapid service.
4. Do you offer samples of your products? Are these samples complimentary or do they require payment?
Q: We are delighted to present you with an exclusive opportunity to obtain samples that are meticulously crafted to align perfectly with your unique requirements and desires. To gain access to comprehensive information and receive personalized assistance, please do not hesitate to contact
our devoted and friendly customer service team. They are always on standby, brimming with expertise and infectious enthusiasm, ready to provide you with the exceptional support you deserve.