Wet Batch Laboratory Mills

Why a Laboratory Attritor?

Union Process customers know from experience that the Attritor is one of the most versatile pieces of equipment in their lab. It can be equipped or retrofitted easily and inexpensively with a wide variety of components and accessories. With the Attritor, users can choose wet or dry grinding, introduce inert atmospheres, operate at controlled temperatures, vary grinding speed, overcome product contamination, change media size and type, and get precise energy consumption information, all on the same machine. Results are repeatable from one test grind to another for maximum credibility. Finally, the Attritor is ideal for formulating, quality control, and scale-up studies.

Advantages of Using a Laboratory Attritor:

Common Applications for Attritors:

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01 Series Research Attritor

The 01 Series Attritors offer users great flexibility as all models share the same column and interchangeable tank design. All models have water cooled jackets for cooling (or heating) and quick water disconnects for removing the tank. These mills are great research tools for formulating, testing, feasibility studies, quality control, and basic research when quantities are small. Results are repeatable. 01 Series Attritors are easy to clean and require no shaft seals.

The HD-01 and 01 Models are designed for media from 1/8″ to 1/4″. They have shafts with arms and run at RPMs from 100 to 650 and can be used for wet or dry grinding.

The Model HDDM-01 is designed for small media ranging from .25mm (or smaller) to 2mm. These models have shafts with special UP Delta Discs (similar to those used on the Union Process DMQX Bead Mill) and run at RPMs of 1000 to 4200. The HDDM-01 features a special one-piece cover with charging port and slurry deflection device. This mill is recommended for wet grinding only.

Model 01

The Model 01 is the most basic model in the 01 Series. It comes with a light duty frame, 110 volt AC motor with variable electronic speed, and no RPM reading. A Model 01 cannot be made explosion-proof.

Model HD-01/HDDM-01

A special HD-01/HDDM-01 combination system is available. In minutes, the RPM of the shaft can be changed from slower HD-01 mode to higher HDDM-01 mode and vice versa. Simply release the belt guard (equipped with quick disconnects), move the belt to an alternative set of pulleys and replace the guard. The appropriate coupling, shaft and cover also must be changed. This system is available with either drive.

Choice of Two Drive Systems

All HD-01 and HDDM-01 Models are available with either TEFC or explosion-proof motors.

1. A non-explosion-proof electronic variable frequency drive system. LCD display will be programmed to show agitator RPM, motor AMPS, and motor HP being used.
2. This can be made explosion-proof if the drive controls are installed in a safe area away from the machine. On the machine is a mechanical tachometer and an operator station with an ON/OFF button and speed potentiometer. An optional explosion-proof readout of motor AMPS is available.

Multi-Tank HD-01 Lab Attritor System

The Multi-Tank HD-01 Lab Attritor System is the ultimate set-up for quality control and test grinding requirements.

• All tanks (expandable from 2 to 6) controlled by ONE power source.
• A timing belt assures that all connected Attritor shafts run at the same speed for the same period of time.

Choose standard stainless steel or a metal-free system with all tanks constructed from alumina, zirconia, or Tefzel®.

01 Series Models

MODEL	01	HD-01 electronic	HDDM-01 electronic
Tank Capacity (cc)****	750 or 1400	750 or 1400	750 or 1400
Working Capacity (cc)***	250 or 500	250 or 500	175 or 350
Media Volume (cc)***	380 or 760	380 or 760	280 or 560
HP	1/4	1/2	1
Voltage**	110/230 1 phase	208/230/460 3 phase*	208/230/460 3 phase*
Variable Speed Drive System	electronic	electronic	electronic
Explosion-proof Motor	no	optional	optional
Height (in./mm)	33/838	36/914	36/914
Bench Space (in./mm)	12×21/305×533	21×27/533×686	21×27/533×686
Weight (lbs./kg)	80/36	220/100	220/100

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S-1 Series

1-S Lab Attritor with electronic variable frequency drive and optional Halar®-coated spout ring, plastic cover, and zirconium oxide lined tank.

Models S-1, SC-1 and SD-1

The S-1 Batch Attritor is a versatile, reliable, rugged laboratory-size machine designed to meet virtually all lab grinding and dispersing needs—either wet or dry. It allows easy and precise scale-up to production size equipment with reproducible results from batch to batch. It is also suitable for small production or pilot plant work.

The S-1 also is available in two additional configurations for specific applications.

• SC-1 – designed for use with tungsten carbide media and supplied with tungsten carbide arm sleeves.
• SD-1 – equipped for dry grinding, includes a metering valve or ball valve and stainless steel cover with floating brush seal for dust control. For continuous operation, disks are added to the shaft.

The Models S-1, SC-1, and SD-1 are designed for media ranging from 1/8″ to 3/8″ and run at RPMs of 100 to 500. All share the following features: 

• Variable shaft RPM.
• Adjustable agitator shaft height to accommodate different size grinding media.
• Bottom discharge grid with valve for easy sampling and discharge.
• Tank slides forward and tips 90° for media discharge and fast cleaning.
• Jacketed for cooling (or heating).
• Quick disconnects for cooling water.

Model SDM-1

The Model SDM-1 is designed for grinding media ranging from 0.25mm to 2mm. The SDM-1 has a shaft with special UP Delta Discs and runs at RPMs of 300 to 2000. It has its own frame, and its tanks are not interchangeable with S-1, SC-1 or SD-1 models. It has a side discharge screen and valve, and the tank tilts for ease of cleaning. The SDM-1 comes with a special stainless steel one-piece cover with charging port. It does not require a shaft seal.

The Model SDM-1 is available with either a stainless steel, alumina- or zirconium-lined tank. Agitator disks are available in tool steel, stainless steel, plastic or zirconium oxide.

Choice of Two Drive Systems

All models in the S-1 Series are available with either of the following two drives:

1. An electronic variable frequency drive system with a LCD display that will be programmed to show agitator RPM, motor AMPS, and motor HP being used.
2. This can be made explosion-proof if the drive controls are installed in a safe area away from the machine. On the machine is a mechanical tachometer and an operator station with an ON/OFF button and speed potentiometer. An optional explosion-proof readout of motor AMPS is available.

S-1 Series Models

MODEL	S-1/SC-1/SD-1 electronic	S-1/SC-1/SD-1 electronic	SDM-1 electronic
Tank Capacity (gal./liters)	1.5/5.7	2.5/9.5	2.9/11.0
Working Capacity (gal./liters)**	0.7/2.7	1.1/4.2	0.8/3.0
Media Volume (gal./liters)**	1.0/3.8	1.5/5.7	1.25/4.7
HP-Standard Use	3	3	5
HP-(SC) for  tungsten carbide media	3	5	–
HP-(SD) for  dry grinding	3	5	–
HP-(SD) for  mechanical alloying	5	7.5	–
Voltage*	230/460v 3 phase	230/460v 3 phase	230/460v 3 phase
Variable Speed Drive System	electronic	electronic	electronic
Height (in./mm)	46/1168	46/1168	60/1524
Bench Space (in./mm)	26×50/660×1270	26×50/660×1270	31×46/787×1165
Weight (lbs./kg)	750/340	750/340	1400/635