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Protimeter Hygromaster and Sleeves Kit

Protimeter Hygromaster floor testing kit with humidity sleeves.

This kit enables the user to take sub-surface equilibrium relative humidity readings, ERH in the floor using embeddable humidity sleeves. This kit contains: one Protimeter Hygromaster one Hygrostick® and extension lead twenty humidity ... more

 Ball Mills
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Centrifugal Ball Mill S 100

Retsch centrifugal ball mills grind and mix soft, medium-hard, hard and brittle materials. Dry and wet grinding in suspension is possible. Centrifugal ball mills are used in the field of analytical chemistry, pharmacy, biology, mineralogy, geology, paints and enamels, ceramics, nuclear research, environmental protection, etc. A multitude of accessories makes for ideal matching to the most diverse applications, be they in research, developement or quality control.


  • Great ultimate fineness, down to into the micron range
  • Fast no loss grinding, dry and wet
  • Time and speed displayed digitally
  • Memory keys for 3 working programs
  • Automatic direction reversal is standard
  • Re-set lock to secure the parameters selected
  • Universal application with a wide range of accessories
  • Stable smooth operation with adjustable balancing masses
  • High reproducibility due to speed control (continuous adjustment of actual value to set value)
  • 2 year warranty, CE marked


The grinding jars in the centrifugal ball mills move in a horizontal plane. Speed is continuously adjustable from 100 to 580 rpm. During the entire grinding process, an electronic speed control compares the actual speed to the preset value and keeps it constant. The centrifugal forces which are generated propel the balls against the inside wall of the jar, where they roll over the product. Grinding is effected primarily by way of impact and friction. The grinding and mixing time can be reliably set via a digital quartz timer for between 1 to 300 minutes. All settings are stored for use in subsequent cycles. To counter any agglomeration effects and enhance homogenization quality, the device is fitted with an automatic reversal system.The S 100 is powered by a high-performance, 100-watt brake motor which will bring the unit to a full stop in less than 1 second after the prescribed time elapses or after the safety cover has been

Technical Data

Performance Features
Working principle Pressure and friction
Max. feed particle size 10 mm
Fineness 0,001 mm (depending on the material)
Sample volume max. 1 x 250 ml or 2 x 20 ml
Mass and Weight
Over all dimensions WxDxH 350 mm x 510 mm x 420 mm
Weight 42 kg
Characteristic Noise Values (DIN 45635-31-01-KL3)
Workplace related emission level 84,5 dB (A)
Sound power level 94 dB (A)
Parameters Broken quartz gravel 2 - 4 mm, 80 ml
250 ml grinding jar of special steel, type "S"
5 grinding balls ø 30 mm of special steel

Order Information

Type Article No.
Centrifugal Ball Mill S 100 (Please order grinding jars and balls separately)
S 100 for 220-240 V, 50/60 Hz 201891001
S 100 for 100-115 V, 50/60 Hz 201891002

For Accessories and Spare part please call us

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Sentra Niaga Puri Indah Blok T3-10
Jakarta 11610 - Indonesia
Telp: +62 (21) 581 8000, 581 9000
Fax: +62 (21) 581 6999
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