Rockwell Hardness Tester

The N3A hardness tester has a load range of 15-187.5 kgf and covers Rockwell, HBD, HVD and Plastic testing. The N3A can easily load applications by means of 180° lever (pre and main load step).

Variable test loads
The N1A test unit with exchangeable spring sleeves is used for different loads. (Spring sleeves with different loads).

Several test loads combined
Four load adjustable test units available. Required test load selected via lever.

Dial gauge
N3A hardness tester measurement readings via analogue dial gauge. Three coloured scales printed on the clock-face. Hardness value read on corresponding scale according to chosen test method and test load.

rockwell hardness tester

Rockwell

According to ISO 6508, ASTM E18

HRA HRL HR 15-T HRB HRM HR 30-T
HRC HRP HR 45-T HRD HRR HR 15-W
HRE HRS HR 30-W HRF HRV HR 45-W
HRG HR 15-N HRH HR 30-N HRK HR 45-N

Plastic testing

According to EN ISO 2039

49.03 N 132.9 N 357.9 N 961 N

HVD, HBD

Depth measurement

HVD 30 HBT 1/30 HBT 2.5/62.5 HBT 5/62.5
HVD 100 HBT 2.5/31.5 HBT 2.5/187.5

Technical Data:

Measurement readings Analog dial gauge
Height adjustment: Hand wheel 285 mm
Test height (N1A unit and spring sleeves): 230 mm
Test height (with load adjustable test unit):
Throat depth: 170 mm
Max. work piece weight: 20 kg
Dimensions w x h x d: 205 x 830 x 470 mm
Basic machine weight: 35 kg
Room temperature: 5 - 40°

N3A Brochure