Potential Applications: Loaders, backhoes, and construction machinery
Displacement: 2.50 CID (41 CC)
Used in mobile and industrial hydraulic systems
Durability: Engineered for demanding environments
Single control plunger reduces the load on the rocking frame, making it easy to install in space limited scenarios
Replace Eaton 421AK Series Piston pump Parameter Table:

About Us:

Ningbo Leno Hydraulic Co., Ltd. is mainly engaged in the research and development, manufacturing, sales, and technical consulting of components such as oil cylinders, hydraulic systems, pumps, valves, etc; The company has rich project experience in the research and development, manufacturing, sales, and technical consulting of hydraulic electromechanical products, including applications in walking machinery, mechanical applications and engineering, factory automation, and other fields. With its intelligent components, customized solutions, and services, it has created a perfect application environment for realizing the interconnected industry.

421AK series Piston pump Product Advantages:

1.High Pressure Capability‌

Designed for industrial high-pressure systems (up to 32MPa), ensuring reliable performance in demanding applications like engineering machinery and power plants.

2.Low Noise Operation‌

Features a three-piece construction (flange, housing, valve block) and dual-metal timing plate design, significantly reducing fluid and structural noise.

3.Long Bearing Life‌

Equipped with steel-backed polymer bearings in a rigid saddle frame, distributing loads evenly to extend service life.

4.Compact & Lightweight‌

Single-control piston design minimizes frame loads, enabling installation in space-constrained environments (e.g., ship hatches, mining equipment).

5.Wide Compatibility‌

Supports multiple adapters (e.g., 421AK00694B/533C) and integrates seamlessly with industrial hydraulic systems.

Application Example Of 421AK series Piston pump:

1. Construction machinery
Used for hydraulic systems of medium-sized excavators, providing load sensitive control and high pressure output (such as 20 ton excavators)
2. Ship and Ocean Engineering
Key components such as ship hydraulic winches and servos need to withstand high salt spray environments.
3. Energy and Electricity
Power plant hydraulic system, oil and gas extraction equipment, including drilling platform hydraulic station and pipeline valve control.
4. Heavy industrial equipment
The hydraulic transmission system of metallurgical machinery, such as continuous casting machines and rolling mills.

421AK Series Product Model:

421AK00204B

421AK00823B

421AK00955B

421AK00533C

421AK00933B

421AK00608B

421AK01196B

421AK00204B

421AK00823B

421AK00955B

421AK00533C