Eaton HYD UM 40: Mobile Hydraulic Offline Filtration System

Introduction to the Eaton HYD UM 40 Mobile Filter Unit

In the world of industrial hydraulics and lubrication, maintaining fluid cleanliness is paramount to system reliability and longevity. The Eaton HYD UM 40 is a premier mobile offline filtration system designed specifically for oil maintenance and lubrication systems. As a versatile and compact unit, it serves as an essential tool for facility managers and maintenance professionals looking to extend the service life of their operating fluids and components.

Purecowater provides the Eaton UM 40 to industries requiring robust filtration in hard-to-access areas or as a supplementary filtration solution to existing in-line systems. By effectively removing solid particles and water from hydraulic oils, the UM 40 ensures your machinery operates at peak performance.

What the Eaton UM 40 Does

The Eaton UM 40 functions as a secondary flow filtration unit. Unlike inline filters that are permanently installed in the main hydraulic loop, this mobile unit operates offline. It draws fluid from a reservoir, filters it through high-quality filter elements, and returns the clean fluid back to the tank. This “kidney loop” filtration process allows for continuous purification independent of the main system’s operation.

Primary capabilities include:

• Particle Removal: Utilizing high-efficiency glass fiber fleece (VG) elements to capture fine contaminants (down to coarse ISO cleanliness codes).
• Water Removal: Optional water-absorbing elements allow the unit to remove free water from the oil, preventing corrosion and fluid degradation.
• Fluid Transfer: Can be used to safely transfer fluids from storage drums to hydraulic tanks while filtering the oil in the process.

Key Features and Benefits

The UM 40 is engineered for usability and durability. Its design addresses common pain points in industrial maintenance.

Feature	Benefit
Mobile & Compact Design	Easy to maneuver into tight spaces and transport between different machines or reservoirs.
Tool-Free Maintenance	Filter elements can be replaced without special tools, reducing downtime during service.
High Dirt Holding Capacity	Utilizes Eaton’s return-line filter elements (DIN 24550-4) with Microglass media for extended intervals between changes.
Safety Operation	Includes safety valves that permit unattended operation, automatically managing pressure limits.
Versatile Application	Suitable for mineral oil-based hydraulic oils and lubrication fluids across a wide viscosity range.

Who is the Eaton UM 40 For?

This product is ideal for industries employing heavy machinery using hydraulic power, including:

• Manufacturing & Injection Molding: For maintaining hydraulic presses.
• Power Generation: For turbine lubrication systems.
• Mining & Construction: For mobile equipment maintenance in workshops.
• General Industry: Any facility requiring routine oil transfer and purification services.

Technical Specifications

Understanding the technical limits of the UM 40 ensures it matches your specific application requirements. Below are the standard specifications for the UM 40 model (e.g., UM40-0210 configuration).

General Data: Eaton UM 40
Max Flow Rate	Approx. 35.5 l/min (~9.4 GPM)
Max Viscosity	400 mm²/s (1860 SUS)
Max Operating Pressure	Low Pressure (Offline Application)
Weight	Approx. 52 kg (115 lbs)
Dimensions (L x W x H)	730 mm x 600 mm x 1060 mm
Fluid Compatibility	Mineral Oil (Fluid Group 2)
Filter Element Type	DIN 24550-4 Return-line (Microglass VG)
Available Filter Fineness	3, 5, 10, or 20 µm (VG)

*Note: Specifications may vary slightly depending on the exact model code and configuration selected (e.g., voltage rating, seal material).

Advanced Operation

The unit features a high-quality gear pump driven by an electric motor. The oil is drawn in via a suction hose (often equipped with a lance) and pumped through the filter housing. A visual clogging indicator is standard, providing a clear signal when the filter element requires replacement. This proactive maintenance feature prevents operation with a bypassed filter, ensuring only clean oil returns to your system.