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If you have any queries, need a quote for one of our products or want some technical advice from one of our engineers, please get in touch and a member of MacScott Bond will respond as soon as possible.
If you are calling from outside of the UK please call +44 131 448 2950
MacScott Bond's head office in Loanhead, near Edinburgh, is located on the same site as our sister company MacTaggart Scott & Co. Ltd.
We look forward to hearing from you.
Technical Details for the GRF 503
The GRF 503 Mobile Filtration Unit sets the standard for high-performance oil care. With an impressive 50 L/min flow rate and continuous operation at 3.5 bar, it excels in filling and filtering hydraulic fluids and lubrication tanks. Connectable off-line to tanks (recommended max volume 1000 L), it supports fast flushing during start-up and acts as additional filtration for highly contaminated systems. Portable and easy to set up, it includes a wide variety of communication protocols, an electric control box with a pressure safety switch, and indicators for efficient operation. The GRF 503, with water removal option, ensures optimal performance in diverse applications.
Designed and manufactured by MP Filtri, these trolleys are a great asset to have around your hydraulic systems as they offer a great way of filtering fluids as you fill your tank.
| Pump | Gear Pump or Screw Pump (for diesel) |
| Electric Motor | 1.1kW, 1400rpm, 110/240 Volt Single Phase, 415V three-phase |
| Flow Rate | 50L/min |
| Max Operating Pressure | 3.5 bar |
| Viscosity Range | Max. 150 cSt |
| Inlet Filter | 250 µm Y type strainer |
| Outlet Filter | 3/6/10/16/25 μm ß>1000 flow through the element Out/In |
| Bypass Indicator set at 1.75bar | Rating 3.5 bar with bypass (LMP) 1.75 bypass (MPS) Visual/electrical indicator (on LMP) set at 2 bar |
| Operating Temperatures | Fluid: -10oC to 80oC Ambient: 0oC to 45oC |
| Protection Class | IP 55 |
| Seal | NBR |
| Fluid Compatibility | Mineral Oil and diesel oil variants |
| Suction / Pressure Hose | SAE100R4 1" swaged female 2000mm hose (available with lances) |
| Dimensions | Weight: 92kg Dimensions: 1151mm (H) x 816mm (D) x 544mm (W) |
| Manufacturer | MP Filtri |
| Filter element - Standard length: Inorganic microfiber element | CS 100 A01 A P01 - 1 μm absolute CS 100 A03 A P01 - 3 μm absolute CS 100 A06 A P01 - 6 μm absolute CS 100 A10 A P01 - 10 μm absolute CS 100 A25 A P01 - 25 μm absolute |
| Filter element - Standard length: Wire-mesh element | CS 100 M25 A P01 - 25 μm CS 100 M60 A P01 - 60 μm |
| Filter element - Extended length: Inorganic microfiber element | CS 150 A01 A P01 - 1 μm absolute CS 150 A03 A P01 - 3 μm absolute CS 150 A06 A P01 - 6 μm absolute CS 150 A10 A P01 - 10 μm absolute CS 150 A25 A P01 - 25 μm absolute |
| Filter element - Extended length: Wire-mesh element | CS 150 M25 A P01 - 25 μm CS 150 M60 A P01 - 60 μm |
| LMP Length 5 elements - Inorganic microfibre element |
CU 400 5 A03 A N P01 - 3 μm absolute CU 400 5 A16 A N P01 - 10 μm absolute |
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If you have any queries, need a quote for one of our products or want some technical advice from one of our engineers, please get in touch and a member of MacScott Bond will assist.
Our History
Founded in 1973, MacScott Bond Ltd has worked for 50 years, ensuring we play our part in providing the engineering excellence expected from being part of the MacTaggart Scott Group. With a rich heritage dating back to 1898, MacTaggart Scott is a trusted name in Scottish engineering, and MacScott Bond proudly upholds this legacy.
The company's commitment to delivering quality fluid power systems is evident through our portfolio of previous projects. MacScott Bond’s designs have stood the test of time and the quality of our construction of bespoke fluid power systems has always been a priority for our company.
From analysing initial requirements, intelligent design and through rigorous testing processes, the company ensures the creation of high-quality systems tailored to the specific needs of diverse sectors, including marine defense, civil, offshore, mining, and industrial.
