Combination Attritor is suited for grinding uranium oxide.

Press Release Summary:

HSA-1/1-S combination laboratory Attritor employs single-motor system that allows user to switch back and forth between high-speed system (HSA-1), which uses 1-2 mm grinding media, and conventional system (1-S), which uses 3-10 mm sized grinding media. Each system has its own unique tank and shaft, interchangeable on frame, and MECO shaft seal for dust control. Other features include gas inlet/outlets and charging ports for grinding under inert gases in closed system.

Original Press Release:

Union Process Introduces Combination HSA-1/1-S Combination Attritor for Grinding Uranium Oxide

Akron, Ohio...Union Process, Inc., known globally as a manufacturer of size reduction and dispersing equipment for research and industrial applications, has produced an HSA-1/1-S combination laboratory Attritor for a customer involved in the nuclear fuels market.

The HSA-1/1-S is unique because the single motor system allows the user to switch back and forth between the high-speed system (HSA-1), which uses 1-2mm grinding media and the conventional system (1-S), which uses 3-10mm sized grinding media.

Each system has its own unique tank and shaft which is interchangeable on the frame. Both also include a MECO shaft seal for dust control, gas inlet/outlets, and charging ports for grinding under inert gases in a closed system. The jacketed tanks have temperature probes to monitor the cooling water in and out. The two systems each feature gross tank volumes of approximately 1.5 gallons.

The variable frequency controller comes complete with an interface module to allow for data acquisition. The controller is installed in an IP-66 enclosure, and the LCD OIM (Operator Interface Module) is programmed to display agitator RPM, motor AMPs, and motor HP being used so that processing conditions may be closely monitored.

For more information on S- or HSA-Series Attritors, other grinding equipment, grinding media, lab services, refurbishing or reconditioning of Attritors, and custom toll processing, contact Union Process or visit

Union Process is the inventor and developer of Attritor technology and manufactures wet and dry grinding mills as well as small media mills.

Attritor is a registered trademark of Union Process, Inc.

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Emery Li
1925 Akron-Peninsula Road
Akron, Ohio 44313

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