Newmac Equipment

New & Used Metal Working Machine Tool Sales

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GMF 8” Senior Bench Grinder

GMF “Senior” 8-inch heavy-duty bench grinder for sale

This Grinder is an iconic piece of Australian workshop history. Manufactured by GMF Electric Motors (based in Sydney), these grinders are renowned for their exceptional build quality and longevity, often outlasting several owners.

  • Motor:   1 HP.
  • Power: 415V three-phase for industrial settings.
  • Speed: Operates at approximately 2850 RPM.
  • Wheels: Standard 8-inch (200mm) diameter with a 5/8″ or 16mm spindle.
  • Construction: Heavy cast-iron body and base designed to minimize vibration.
  • Unique Component: The GMF Senior is known for substantial, adjustable tool rests that attach directly to the machine’s base rather than flimsy wheel guards. 

Performance & Reputation

  • “Spin Down” Time: These machines have significant rotating mass; it is common for a GMF Senior to take several minutes to come to a complete stop after being turned off.
  • Legacy: GMF was eventually acquired by Betts Electric Motors in the early 1980s. Collectors and restorers highly value these vintage units for their smooth operation and reliability. 

Price $300.00 + GST Ex Works

We recommend customers pay us a visit to inspect machinery, where we are happy to test run machinery in our warehouse, that way it gives you peace of mind that the machine will do your job before purchase.

This grinder is in our warehouse so please feel free to call us on 03-9720-3922 for more information & price or pop in to inspect the machine at your convenience.

We are always interested in purchasing metalworking machinery & surplus equipment. Should you be looking at Downsizing, Relocating, Closing Down or having machinery surplus to requirements, we would appreciate the opportunity to assist in any way we can.

We would like to extend a note to all prospective customers. We are happy to provide details of freight companies that transport machines anywhere in Australia or worldwide. However, we want to remind customers that the machines are not insured during transport by either the transport companies or Newmac Equipment. We strongly advise that customers speak with their usual insurance company to take out transport insurance.

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Newmac Equipment has a great range of metal working machinery and accessories for sale. We specialise in machines for manufacturing industries, but within our website you will find other equipment suitable for many purposes. We are best known for our used machines which we strive to find in good condition and priced to fit a wide range of budgets. We also sell new and used metal working machines and accessories to government and the education sector. For many years, Newmac Equipment has been an agent for Schaublin, the Swiss high precision tooling and machine tool manufacturer.
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Proudly Australian owned

Site last updated 25th May, 2026
10 Stephenson Road, Bayswater North, 3153, Victoria, Australia
Click to ring Newmac Equipment
Mobile 0413 937 060 (Richard)
Mobile 0422 332 910 (Dave)
Office hours:
Mon - Thu 8.30am - 4.45pm
Friday 8.30am - 3.00pm
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New and Used Metal Working Machines for sale

Located in Melbourne, Victoria, Australia

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