Hydraulic Filtration Systems, Replacement Elements & Oil Analysis

Over 80% of hydraulic component failures are caused by fluid contamination. At McCullochs, we provide comprehensive contamination control solutions engineered to protect your expensive hydraulic pumps, motors, and proportional valves.

Located in Epsom, our trade counter stocks Central Victoria’s largest inventory of suction, pressure, and return-line filters, spin-on elements, and mobile offline filtration units. Whether you need an OEM replacement filter element or an on-site fluid analysis, our fluid power specialists help you maintain ISO cleanliness standards and prevent costly machine downtime.

High-Pressure & Return Line Filters

  • Pressures to 420 bar (6000 PSI)
  • Flows to 1320 l/min (350 US GPM)
  • BSP, NPT, SAE and Metric connections
  • Head spheroidal graphite cast iron, bowl cold drawn steel
  • Wide range of valve options
  • Various element types and media available
  • Standard bowls or top-loading bowls available
  • Visual, electrical and visual-electrical clog indicators

Protect downstream directional valves and cylinders from particulate wear under full working load:

In-Line High-Pressure Filters: Engineered to withstand working pressures up to 420 bar, shielding sensitive servo and proportional valves.

Tank-Mounted Return Filters: Capture wear debris before oil re-enters the reservoir, featuring integrated bypass valves to maintain flow during cold starts.

Duplex Filters: Dual-chamber filter units allowing continuous element changes without shutting down running production lines.

PRESSURE FILTERS

Spin-On Elements & Suction Strainers

  • Pressure to 14 bar (200 PSI)
  • Flows to 460 l/min (120 US GPM)
  • BSP, NPT, SAE and Metric connections
  • Heads made from die-cast aluminium
  • Visual and electrical clogging indicators
  • Wide range of media types and seal options
  • European and North American elements in stock

Fast, cost-effective filtration solutions for mobile equipment, agricultural machinery, and power units:

Canister Spin-On Filters: Quick-change suction and return spin-ons for low-pressure lines and auxiliary circuits.

Suction Strainers: Stainless steel mesh strainers installed inside the reservoir to catch large debris before reaching the main pump.

Desiccant Air Breathers: Replace standard filler caps with silica-gel breathers that remove both airborne dust and moisture ingress simultaneously.

SPIN ON FLTERS

Offline Kidney Loop & Mobile Filter Carts

Clean your oil without stopping your machinery. Ideal for heavily contaminated systems or pre-filtering new oil:

Mobile Filter Carts: Portable filtration rigs equipped with high-efficiency micro-glass elements and moisture-removal bags for bulk oil transfer.

Permanent Offline Loops: Dedicated low-flow pump and filter circuits that run continuously to maintain ultra-clean fluid independent of main system operation.

Major Brand Filter Crossover & Replacement Elements

Don't pay inflated OEM prices or wait weeks for imported filter elements. We stock and cross-reference high-efficiency replacement elements for leading international filtration brands:

Supported Filter Brands: Donaldson, Parker, MP Filtri, Stauff, Hydac, Pall, Baldwin, and Fleetguard.

Microglass, Paper & Stainless Mesh: Filter media available in 3, 5, 10, and 25-micron ratings to meet exact ISO fluid cleanliness specifications.

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Hydraulic Oil Sampling & Contamination Analysis in Bendigo

Unsure if your hydraulic oil is clean enough? Bring an oil sample to our Epsom team!

McCullochs offers fluid particle counting, varnish detection, and moisture analysis to pinpoint microscopic wear before pump failure occurs.

Visit us: 205 Midland Hwy, Epsom, Vic 3551

hydraulic oil testing

ADDRESS

205-207 Midland Highway, Epsom VIC 3551

PHONE

(03) 5445 6900

24/7 Hose Truck:
133 247 or 1300 24 HOSE

HOURS

Monday to Friday
8am - 5pm

ASK A QUESTION

Technical Support Request: