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Qness (QATM) Grinding & Polishing Machine QPOL 250 A1-ECO (Saphir 250 A2-Eco)

  • Working wheels: Ø 200/250 mm
  • Programmable memory for reproducible results
  • Twin wheel unit
  • No. of samples (single pressure): 1-5 samples Ø 40 mm



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QPOL 250 A2-ECO (Saphir 250 A2-Eco)

Grinding & Polishing Machine


The QPOL 250 A2-ECO is a double wheel grinding and polishing machine for working wheels Ø 200/250 mm which is conveniently operated by a 4.3 “touch screen.

The new holder for the working wheel (single-disc design) enables operation without carrier disc without compromising  performance. The control software allows to edit and save up to 200 preparation methods, protected by a user account management.

Pressure, speed and direction of rotation (head and working disc) are adjustable. A spin cycle function (Cleaning Boost) helps to spin dry the grinding and polishing medium at 750 rpm at the end of the preparation process within 3 seconds.

The robust machine can be combined with the dosing system TOPAS ECO and offers maximum flexibility for sample preparation and operating convenience.


Product Advantages


  • Double wheel grinder/polisher
  • Spin cycle function (Cleaning Boost)
  • 4.3″ Touch-Screen with intuitive QATM user software
  • 200 customized programs storable
  • Easy cleaning/rinsing of bowl by lifting the working wheel (single-disc design)
  • Variable speed of working wheel and polishing head
  • Working wheel and polishing head: clockwise / counter-clockwise rotation
  • Impact-proof plastic bowl
  • Aluminium case, powder-coated
  • Economic LED illumination




Working wheels Ø 200/250 mm
No. of samples (single pressure) 1-5 samples Ø 40 mm
Single pressing force variable, 5-80 N
Central pressing force variable, 20-285 N (expert mode: 20-350 N)
Connection power 2.3 kVA
Drive power (grinder) 0.55 kW (S1)
Drive power (head) 0.18 kW (S1)
Speed (grinder) 30 – 600 min-1
Speed (head) 30 – 160 min-1
W x H x D 901 x 530-610 x 710 mm
Weight ~ 78 – 85 kg
Water connection 1x fresh water connection R½” max. 6 bars
Dosing system (option) Topas ECO




The fully automatic dosing system TOPAS ECO is suitable for use with the automatic grinders of the QPOL 250 A series. Four 500 ml glass bottles with screw caps hold 3 x suspension and 1 x lubricant or 4 x Dia-Complete and can be filled via a separate lid. They are easily removed for cleaning.

The dosing nozzles are inserted into a holder attached to the head. The dosing interval is controlled via the touch screen and the software of the QPOL 250 A devices. The backflushing function keeps the hoses clean.


  • Automatic dosing unit for
    3x diamond suspension and 1x lubricant or
    4x Dia-Complete
  • Dosing interval adjustable
  • Reverse rinsing function
  • Controlled by the control software of the QPOL 250 A grinders/polishers
  • For all QPOL 250 A grinders/polishers
  • Suspension containers refi llable and removable
  • incl. dosing nozzles (inserted into a holder attached to the head)