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401-00091A HYDRAULIC MAIN PUMP: PERFORMANCE FEATURES AND PRACTICAL INDUSTRIAL APPLICATIONS

Oct 07, 2026

401-00091A HYDRAULIC MAIN PUMP: PERFORMANCE FEATURES AND PRACTICAL INDUSTRIAL APPLICATIONS

 

Product Introduction

Model 401-00091A is a heavy-duty hydraulic main pump designed for excavator hydraulic systems. It converts rotational mechanical power into pressurized hydraulic fluid, delivering continuous flow and pressure to drive multiple hydraulic actuators of construction machinery. As the core power source of the whole hydraulic circuit, this pump adopts precisely matched internal components to achieve stable fluid output and adjustable displacement.

This hydraulic main pump features high volumetric efficiency, outstanding pressure bearing capacity and compact assembly structure. It can maintain stable working performance under long-term heavy load and variable working conditions. Optimized internal friction structure effectively reduces heat generation and extends service life. It can adapt to high temperature, dusty and strong vibration construction environments, supporting non-stop continuous operation. Simple disassembly and convenient maintenance help operators reduce equipment downtime and overall repair expenses.

Application Scenarios

Hydraulic pump 401-00091A is widely equipped on mobile construction machinery and matched hydraulic systems that require stable hydraulic power supply, covering multiple core industries:

1. Construction Engineering Machinery

It serves as the main power unit for medium-sized excavator hydraulic circuits. It provides hydraulic power for boom movement, bucket operation and travelling mechanism. Its stable pressure and flow output ensure smooth and coordinated machine actions. Excellent anti-shock and anti-vibration characteristics guarantee reliable operation in harsh construction sites and improve the comprehensive working efficiency of excavators.

2. Road Maintenance Equipment

The pump can be applied to small road repair machines, trench cutters and mobile compaction devices. It keeps steady hydraulic output under frequently changing load conditions. It supports lifting, pushing and cutting movements of road machinery, improving the automation degree of road maintenance work and shortening construction time.

3. Auxiliary Mining Equipment

401-00091A hydraulic pump is also used for underground auxiliary mining machines and rock handling equipment. It supplies consistent hydraulic power for clamping and conveying movements. Good load response capability ensures safe and stable operation under frequent start-stop cycles in mining sites.