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Mini (3") Automatic Grinder/ Polisher with Complete Accessories - EQ-Unipol-300

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Item Number: UNIPOL300


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Choose Extra 3" Lapping Plate and Rubber Polishing Collar*
Choose extra sample Holder*

EQ-Unipol-300 is an automatic mini-grinder / polisher for preparing TEM, metallographic samples in a single mount. The machine equips with 3" fix lapping plate, variable sample moving speed, adjustable pressure load and selectable time switch to achieve attention free polishing. 

Unipol 300 simulates human hand to grind and polish sample via randomly moving sample holder on top versus fixed 3" plate. It is very suitable for preparing < 1" Dia specimen in low volume laboratory for material research, failure analysis, and medical test. By combining our SYJ150 low-speed diamond saw,
 you can own a processing lab on one desk to prepare versatile specimen at an affordable budget.



AC 110V and 208-240V (50/60Hz) switchable for worldwide operation.

Max. Moving Weight of Specimen 200g
Max. sample size 25 mm Dia.  x  20 mm H

3" glass lapping plate ( front & back )
  • Easy to use and affordable.
  • Variable moving speed for the sample holder on top.
  • Adjustable pressure load by a spring inside from 0-5 Newton.
  • Automatic timer setting from 0 to 99 hours.
Accessories                         Diamond Polishing Paste
Overall Dimensions 420mm L x 190mm W x 210mm H
Net Weight 24 lbs
Package Dimensions 34" x 14" x 14"
Shipping Weight 34 lbs
Operation Instructions
  • CE Certified
  • NRTL certification is NOT available temporarily.

  • One year limited warranty with lifetime support
  • Rusting and damage due to improper storage condition or maintenance are not covered by warranty



 P/N  Item Name  Qty.
 EQ-Unipol-300  EQ-Unipol-300 Grinding / Polishing Machine  1
 UP-300-02  Rubber Polishing Collar  1
 UP-300-03  3" Glass Lapping Plate   1
 UP-300-04  1" dia. sample holder for flat sample  1
 UP-300-05  1" dia. sample holder for inserting bulk sample  1
 UP-300-06  3" Poromeric Polishing Pad (PSB) for Final polishing  3
 UP-300-07  AC power cord  1
 UP-300-08  Operation manual  1
 UP-300-09  1 set of 3 syringes (10g) diamond paste with 0.25, 1.0, and 3.0 micron grit  1 set

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1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.