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Vacalon Arctic Grinders
VacalonShips in 3 business days

Vacalon Arctic Grinders · Medium · Medium Wheel 15 × 3.5 mm

SKU 090-1039MFR# 51436

Vacalon Arctic Grinders are diamond-infused ceramic grinders for everyday adjustments on zirconia, lithium disilicate (e.max) and porcelain. The stone stays cool and sharp through long use and cuts cleanly under pressure, which keeps down the surface stress that leads to microfractures.

What it is used for

  • Heavy reduction and contouring of multilayer zirconia and lithium disilicate
  • Controlled refinement of feldspathic porcelain
  • Coarse (yellow) for bulk removal, medium (green) for finer adjustment

Why labs choose it

  • Runs cool and does not clog, even in extended use
  • Cuts cleanly under pressure – less stress on the ceramic
  • Keeps its shape and edge for a long working life
  • Enough shapes to finish a case with fewer tool changes

Shapes, sizes and speeds

Sold individually – pick the grit and shape above.

Shape Size Best speed Maximum speed
Inverted Cone 12 × 10 mm 10,000 rpm 20,000 rpm
Small Barrel 5 × 13 mm 20,000 rpm 30,000 rpm
Large Barrel 6.5 × 13 mm 15,000 rpm 20,000 rpm
Tapered Barrel 4 × 11 mm 20,000 rpm 30,000 rpm
Small Wheel 12 × 2.5 mm 10,000 rpm 20,000 rpm
Medium Wheel 15 × 3.5 mm 8,000 rpm 20,000 rpm
Large Wheel 22 × 3 mm 8,000 rpm 20,000 rpm
Knife-Edge 22 × 2 mm 8,000 rpm 20,000 rpm
Mini Wheel 6 × 3.5 mm 6,000 rpm 20,000 rpm
Tapered Point 3.5 × 10.8 mm 10,000 rpm 20,000 rpm
Ball 4 mm 6,000 rpm 20,000 rpm

Details

  • Shank: HP (104), 2.35 mm – fits a straight lab handpiece
  • Sold individually, one grinder per pack
  • Made in Germany

Product

Manufacturer
Vacalon
Manufacturer #
51436
Item code
090-1039

Catalog path

Marketplace
Laboratory

Ordering

Status
Ships in 3 business days

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About mounted stones

A lab mounted stone is a bonded abrasive, abrasive particles held together by a bond, fixed on its own shank for grinding and shaping. OSHA's abrasive-wheel rule treats mounted wheels of 2 inches and under as a group of their own.

A mounted point or stone is an abrasive already fixed on its own shank; the FDA names the abrasive point among the abrasive devices of 21 CFR 872.6010, Class I. OSHA groups abrasive wheels by bond: organic, such as resin, rubber or shellac, and inorganic, such as clay, glass or porcelain.

How the types on this shelf differ
What to look at when choosing

Sequence: a review describes polishing in three stages, coarse finishing, intermediate polishing and final polishing. Coarse tools shape the work and remove excess material; medium ones smooth out the grooves and scratches the coarse ones leave.

Size: ISO 2157 sets the nominal diameters of the working part of burs, laboratory burs, grinding instruments, diamond instruments and mandrels, and how they are designated.

Shank: the part that fits into the handpiece. ISO 1797 sets shank dimensions and material properties.

Speed: OSHA's abrasive-wheel rule has the spindle speed checked against the maximum operating speed marked on the wheel.

Reuse: the CDC states that burs, polishing points and rag wheels used on contaminated appliances or prostheses should be heat-sterilised, disinfected between patients, or discarded.

Sources: FDA 21 CFR 872.6010, Abrasive device and accessories · OSHA 29 CFR 1910.211, Machinery and machine guarding: definitions · OSHA 29 CFR 1910.94, Ventilation (grinding, polishing and buffing operations) · OSHA 29 CFR 1910.215, Abrasive wheel machinery · ISO 21671:2006, Rotary polishers · Does Sterilization Affect the Performance of Single-Step Resin Composite Polishers? (Dent J 2023) · A Comprehensive Review of the Surface and Chromatic Properties of Monolithic Zirconia: Polishing and Finishing Methods (Cureus 2024) · ISO 2157:2016, Nominal diameters and designation code numbers for rotary instruments · ISO 1797:2017, Shanks for rotary and oscillating instruments · CDC, Guidelines for Infection Control in Dental Health-Care Settings, 2003 (MMWR 52 RR-17)