169-8057 169-7791 162-4875 Hydraulic Main Pump Piston Pump for Caterpillar 313B Excavator,Construction Machinery Parts Manufacture

 

The piston pump models 169-8057, 169-7791 and 162-4875 are primarily used as the "power heart" of the entire machine's hydraulic system, responsible for converting the engine's mechanical energy into hydraulic energy, providing stable power for core operations such as excavation, slewing and lifting. Its core functions include:

• High Pressure & Efficiency - Rated at medium-high pressure with high power density, precisely matching the heavy-load requirements of 13-ton class excavators, ensuring stable output of digging force and operational efficiency.
• Stability & Durability - Features variable control and stepless displacement adjustment, enabling low-pulsation and low-noise operation. Crafted from high-strength wear-resistant alloy steel via precision machining and surface hardening, it boasts strong impact load resistance, adapts to harsh outdoor working conditions and oil temperature fluctuations, and extends the service life of overall machine components.
• Precision & Energy Saving - Equipped with load-sensitive control for rapid response, real-time flow matching to load demands, avoiding energy waste. More energy-efficient than traditional fixed-displacement pumps, ensuring smooth and precise digging operations.

Strategically located in Guangzhou's Huangpu District, approximately an hour from Baiyun International Airport, Tieqi has been a dedicated specialist in engineering machinery hydraulics for nearly 15 years.

Driven by our core values of "Pragmatism and Progress," we are committed to delivering practical solutions and upholding our responsibilities. This principle-driven approach defines all our operations and client partnerships.

In China's excavator hydraulic assembly sector, our efficient execution and rigorous approach to manufacturing every product to meet over 95% of original performance specifications have built widespread trust. This has made us a destination for industry peers and clients seeking knowledge and reliable supply, and we take pride in our role of continuously elevating production standards in China.

We are proud to set the standard for hydraulic manufacturing in China, a commitment recognized by our global clientele in the mining, construction, and trading sectors. We invite you to visit our Guangzhou facility to evaluate our quality processes firsthand.

Our capability is backed by a ready inventory of over 500 assembly types, providing access to more than 6,000 different parts. Hydraulic pump, control valve, travel, and swing assemblies are our core products, with a distinct advantage in large mining excavator components and hard-to-find items.

Our 4,000-square-meter factory in Guangzhou is equipped for professional manufacturing, precision assembly, rigorous testing, and quality certification, ensuring reliable performance and timely delivery for every order.

By integrating top-tier Chinese hydraulic brands and supply chains, we provide cost-effective, convenient, and scalable one-stop solutions tailored to diverse machinery and operational needs. Our ability to expertly meet complex client requirements remains a cornerstone of our service.

For large items, we use sturdy plywood crates secured with metal fasteners for added stability. Inside, the products are cushioned with bubble wrap and secured with wooden braces, while special attention is given to protecting vulnerable parts. Externally, the crates are reinforced with high-strength PET plastic strapping and wrapped in highly waterproof black film. All these measures are taken to ensure that the products reach our customers safely and securely.