Design and Manufacture of In Line Return Hydraulic Filters

In line return hydraulic filters manufacturing and development for superior performance in applications across various industries.

End to End Design and Manufacturing

Operating across many sectors and industries, Pallman have embarked to become a renowned filtration brand on the global stage in the research, innovation, design, development, and manufacture of hydraulic filters. Our engineering teams work with customers to design and manufacture return line hydraulic filters used to prevent contamination in hydraulic reservoirs. Pallman takes control of the hydraulic filter manufacturing process end to end, to ensure the supply of premium quality filters, often improving on OEM filtration products.

In-Line Return Line Filters

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In-line filters are installed directly in the return line, typically between the hydraulic components and the reservoir. They can be mounted using brackets or installed using threaded connections. In-line filters provide an additional filtration stage to remove contaminants from the hydraulic fluid before it reaches the reservoir.

Return Line Filter Elements

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Used in conjunction with filter housings specifically designed for return line filtration, return line filter elements are available in various designs and filtration ratings, allowing flexibility in choosing the appropriate element for the specific application and contamination levels.

Return Line Suction Strainers

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While not strictly classified as return line filters, suction strainers are often used in hydraulic systems to protect the pump from larger debris and contaminants. Suction strainers are placed at the inlet of the pump, within the reservoir, and serve as an initial barrier to prevent damage to the pump. They are typically made of wire mesh or perforated metal and capture larger particles before the fluid enters the pump.

Tank-Mounted Return Line Filters

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Directly installed on the reservoir or tank of the hydraulic system, tank-mounted filters are often positioned at or near the return line entry point into the tank. These filters are designed to filter hydraulic fluid as it returns to the reservoir, capturing contaminants and preventing them from circulating further into the system.

Reputation for Excellence

Designed to filter materials generated in the system, to prevent contaminants from entering the hydraulic reservoir, the return filters designed by Pallman are manufactured to match and often exceed the Fit, Form, and Function standards recommended by original equipment manufacturers. Maximum efficiency, reliability, and premium quality in design and manufacture is Pallman’s trademark.

Filtration Innovation and Bespoke Applications

Organisations choose Pallman to develop best of breed hydraulic filtration solutions for reliable maintenance of equipment, to ensure product quality, and to protect machinery investments. Extensive experience of developing return filters in hydraulic systems allows our engineers to provide optimised filter performance for the most demanding of applications.

The Process

The Pallman Hydraulic Filter Team provide filtration manufacturing solutions that include:

Research and Development

Scrutinise filter requirements and application to identify specifications, media, metals, seals, packaging.

Filter Manufacturing

Specialist manufacturing facilities construct filter media, casings, assemble, label and package.

Design and Testing

Design with specialist CAD software, building models, filter prototypes, testing, documenting.

Quality Control

Implement checks, tests, and validation routines, conduct benchmarking, align to ISO standards.

Why Speak to Pallman?


Relied upon to provide critical filter solutions worldwide


Can do attitude, energetic, proactive, and passionate about filtration


Standards, quality compliance, certification built-in at the core, ‘perfection on each filter’


Innovative filter design customised to specific applications and industries


Continual investment in research, design, and manufacturing technology


Customer service tailored to each client and sector, with continuous development


Global reach and service from headquarters in the UK to worldwide locations


Dedicated to manufacturing quality, producing filters that help our environment
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