Donaldson hydraulic filters have been solving the world's most complex filtration challenges since 1915. Their products protect machinery and components in a vast range of industrial and mobile applications globally.
Today, Donaldson are one of the largest providers of unique filtration technologies and high-quality filters and parts. The company offers filters, contamination control products and capabilities to protect hydraulic machinery and components in hundreds of applications, in industrial settings and heavy-duty mobile machinery alike.
Donaldson hydraulic filters and systems reduce a broad range of contaminants to keep sophisticated equipment running smoothly – resulting in efficient systems with superior performance. They provide a wide range of first-fit products comprising low, medium, high-pressure and off-line filtration systems – together with a complete portfolio of aftermarket replacement filters.
Donaldson offer a complete line of filters and cartridges for low-, medium- and high-pressure applications. Each is also available in a range of media efficiencies to meet specific application requirements.
Hydraulic filter heads, housings and related accessories for use in suction and in-tank (low- pressure), return lines (medium-pressure) and pressure line (high-pressure) applications are also available together with spin-ons and cartridges in a wide range of filter medias. Additional accessories for hydraulic circuits, lines and reservoirs help to ensure that ISO cleanliness levels are maintained. Meanwhile, Donaldson fluid analysis equipment can help safely extend drain intervals, minimise downtime and extend equipment life.
Low pressure filtration
Donaldson low pressure hydraulic filters are the most commonly used type of filter in hydraulic circuits. Moreover, they are used most often as return line filters in applications with working pressures up to 150 psi and static pressure up to 300 psi. The range includes:
- Spin-on filters up to 10.3 bar (150 psi) and maximum flow of 379 litres/ minute: SP15/25 | W023 | HBK05 | SP50/60 | SP80/90 | SP100/120 | TT15/30/60
- In-tank filters up to 13.8 bar (200 psi) and maximum flow of 644 litres/minute: WL15 | WL16 | FIK | SRK Combo
- In-line cartridge filters to 10.3 bar (200 psi) and maximum flow of 1136 litres/minute: HRK10
Medium pressure filtration
Donaldson Hydraulics DURAMAX®, medium pressure filters are well-known as the highest rated spin-on style hydraulic filters available. Most often they are used in return-line positions. As spin-ons, they are particularly well-suited for duplex circuits. The range includes:
- Spin-on filters up to 69 bar (1000 psi) and maximum flow of 379 litres/ minute: HMK03 | HMK04 | HNK04 | HMK05 | HNK05 | HMK24 | HMK25
- In-line cartridge filters up to 41.4 bar (600 psi) and maximum flow of 1136 litres /minute: FLK90 | FLK110 | FLK125 | DPK350 | W061 | HDK06 | W041 | HFK08
High pressure filtration
Donaldson heavy-duty hydraulic filters sit behind hydraulic pumps and other prime movers to protect critical hydraulic components, such as hydraulic cylinders, hydraulic motors and hydraulic valves.
All filters contain SYNTEQ® synthetic filter media, specially developed by Donaldson Hydraulics for high efficiency liquid filtration. Working pressures range from 137.9 bar (2000 psi) up to 420 bar (6090 psi). The range of in-line cartridge filters comprises: HPK02 | DPK2400 | W440 | FPK02 | W350 | HPK03 | FPK04 | HPK04 | W451 | W620 | HPK05
The Donaldson hydraulics product range also includes: hydraulic filter service indicators, hydraulic pressure gauges, test points assemblies, hydraulic valves, hydraulic flanges, reservoir level gauges, sight glasses, a variety of tank and filler breathers, caps, vents, plugs, strainers, diffusers, magnets and more.
Please contact us for further technical guidance or if you cannot see the Donaldson hydraulic filters that you need listed below – we’ll be happy to help!
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