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LABORATORY ATTRITOR

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 tungsten carbide milling and uses tungsten carbide media and is

supplied with tungsten carbide sleeved agitator arms.

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

(see top right).

Bottom discharge grid with valve for easy sampling and discharge

(see bottom right).

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 specially designed 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. This can be made

explosion-proof when 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.

2. An explosion-proof mechanical variable speed drive system with tachometer.

Dimensions and weights are approximate and subject to change.

*60 Hz standard. 50 Hz/380 V, 3 phase available.

Based on a Stainless Steel Tank

9

S-1 SERIES MODELS

S-1/SC-1/SD-1

S-1/SC-1/SD-1

SDM-1

SDM-1

electronic

mechanical

electronic

mechanical

Tank Capacity (gal./liters)

1.5/5.7

2.5/9.5

1.5/5.7

2.5/9.5

2.9/11.0

2.9/11.0

Working Capacity (gal./liters)*

0.7/2.7

1.1/4.2

0.7/2.7

1.1/4.2

0.8/3.0

0.8/3.0

Media Volume (gal./liters)*

1.0/3.8

1.5/5.7

1.0/3.8

1.5/5.7

1.25/4.7

1.25/4.7

HP-standard use

3

3

2

2

5

5

HP-(SC) for tungsten carbide media

3

5

2

3

HP-(SD) for dry grinding

3

5

2

3

HP-(SD) for mechanical alloying

5

7.5

3

5

Voltage*

230/460

230/460

230/460

230/460

230/460

230/460

3 phase

3 phase

3 phase

3 phase

3 phase

3 phase

Variable Speed Drive System

electronic

electronic

mechanical

mechanical

electronic

mechanical

Height (in./mm)

47/1194

47/1194

48/1219

48/1219

60/1524

60/1524

Bench Space (in./mm)

26x40/660x1016 26x40/660x1016 25x50/635x1270 25x50/635x1270 31x46/787x1165 31x54/787x1372

Weight (lbs./kg)

650/295

700/318

750/340

850/386

1400/635

1600/726

Adjustable Agitator Shaft Detail

Bottom of tank showing ball valve and plug for draining

water jacket.