QC – 621H, the main  purpose is for  measuring surface treatment of the wear resistant and   decolor such as varnishing, electroplating,  coating, dyeing and finishing and lens. It can  use  cotton, sand paper, steel wool   and  eraser to test specimen of wear condition. This tester can  cater various different standard of requirement to set con ­ dition for  testing such as  speed, stroke, specimen appearance, abrasion head and load , and  so  on.

Product Description

Applicable Industry

Plastic,  Electronic, Textile, Printing, Optics lens


Model QC-621H
Weight  set 25g x1, 50g x1,100g x1,200g x1, 300g x1, 500g x1,1000g x1 ( basic weight is 200 g )
Abrasion distance 10 100 mm adjustable (Adjustment by hand)
Max test load Test stroke is under  50 mm, the max. load is 8kg
Abrasion head a.6.35 mm sand stick abrasion head
b.16 mm cotton abrasion head
c. 16 mm steel wool abrasion head  (optional)
Sample Size Width 20-200 mm · thickness max. 50 mm
Control Panel 1 – 120 CPM Can be precisely set speed
1 –  99,999,999 times can be set. Auto-stop while the test is completed.
Power 100V 240V  · 50/60 Hz
Dimension 70  x  35 x  40 cm
Weight 46 kg

Download catalog

QC-621H Surface hardness tester catalog (pdf)