SEPR ER-120S® Series Grinding Media
Zirconia-Silica Grinding Beads
ER-120 Photo
ER-120S® Grinding Media Features

If your business is a current user of SEPR "ER" series of zirconium silicate grinding beads, Quackenbush can now meet your mill media needs.  We offer competitive pricing for ER-120A®, ER-120S®, and the latest product from SEPR/Saint Gobain, ERMIL®.  All three types of beads are electrofused zirconia that feature a very smooth surface for low mill and media wear.

One advantage of the production method is that a wide variety of diameters are available.  Indeed, the electrofusing process is the best method of producing very small diameter beads.  For larger diameter media needs, our QBZ-58A is the product of choice due to it's tight size tolerances and high spericity.

Sizes available are 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0, 1.25, 1.6, and 2.0 mm diameters. 
Chemical Composition 68.5% ZrO2, 31.0% Si02
Specific Gravity 3.85g/cc
Hardness (Mohs) 7
Bulk Volume
2.3 kg/liter
Crushing Strength
700 N

Deliveries for most diameters of of mill media are just a few days. We offer only the finest quality grinding media that you can count on to deliver the grind that you need.

Contact Tom Weiss at Quackenbush Company to discuss your requirements and to receive a quotation.
Quackenbush Company, Inc.
6711 Sands Road
Crystal Lake, IL 60014 (USA)
Phone: 815-479-8900
Fax: 815-479-8890
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