GSP8 Complete Vertical Cabbing Machine

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GSP8 Sander/Polisher

Complete Cabbing Machine Version

This Australian Made unit is constructed of aluminium alloy casting, stainless steel shaft and heavy duty bearings. Gemmasta machines are finely engineered and made in Ballina, NSW.

It is supplied with the following accessories that will allow you to completely finish cabochons:

  • 200mm (8 Inch) face plate with a 260 Grit diamond disk.
  • 100 Grit Diamond Disk on a magnetic backing for coarse grinding.
  • Set of 4 Resin Bonded Diamond Disks for the sanding process. The disks have a foam core which allows enough "dip" to get an evenly rounded surface on your cabochons. They are magnetically backed and adhere firmly to the 260 grit steel diamond disk. The disks are manufactured by Gemmasta in Ballina and replacements are readily available.Standard set up is 280 (BLACK), 600(BROWN), 1200(GREY) & 3000(PINK) Grit
  • Gemmasta manufactured water kit with an articulated water hose to apply water to the disks. The water kit accepts a standard garden hose style of connection. We highly recommend using a gravity feed water feed to avoid building up too much pressure in the water system.
  • Felt disk on a magnetic backing and 50,000 diamond compound for final polishing. Cerium or Tin Oxide are available as alternatives.
  • Brass water drain outlet through the base of the tray. Simply connect 25mm clear plastic tubing for your waste water (not supplied).
  • 12mm square profile rubber strip to deflect the water spray back into the tray.
  • Marine carpet in the tray to prevent damage to stones if they come off the dop or out of your fingers.
  • Supplied on an epoxy sealed board with a 1/3 hp motor.

Please note:

Safety glasses should be worn when grinding with any abrasives!

Stone dusts as well as organic material dusts can be very hazardous. Protective breathing equipment should be used to protect your lungs. Good ventilation is also highly recommended.



Brand Gemmasta
Shipping Weight 26.0000kg
Shipping Width 0.470m
Shipping Height 0.400m
Shipping Length 0.470m
Shipping Cubic 0.088360000m3
Unit Of Measure ea
Assembled Length 0.450m
Assembled Height 0.330m
Assembled Width 0.470m

In my experience!

By: on 22 July 2020
Hi, I’m an opal cutter who is accustomed to a flat vertical machine to cut on, I learned back in 1992 that way when you had to keep dipping stone in water to keep it cool. I adapted my own machinery to get by til now, so this Is a great find for me. The price is fantastic, delivery on time, and put a drainage hose on and away I went. The magnetic system makes this very versatile yet space saving. I was surprisingly (no offence to manufacturer) impressed with the quick grinding capability of the 150grit , watch your knuckles, and gave it a good work out and didn’t notice any issues with the grit wearing, I need this to last me a while. I also like to be able to cut reasonably flat faces when needed which this allows me to do. After hrs of constant use I noticed The need to keep refilling my small reservoir, so opted instead to connect it directly to my outside tap by hose connection, and I know they say not recommended in case to much pressure, but I just open the machines tap fully, THEN, turn the outside tap on So as not to over pressurise the hose, just be careful. Sorry this is the first review I’ve ever done not sure what the protocol is, but that’s my experience. Have fun ✋

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