1pc Portable Steel Leeb Hardness Testers Digital Metal Hardness Testing Machine Hardness Meter LM100

1pc Portable Steel Leeb Hardness Testers Digital Metal Hardness Testing Machine Hardness Meter LM100
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Portable Steel Leeb Hardness Testers Digital Metal Hardness Testing Machine Hardness Meter LM100

1.Working Principle

To use the impact body of certain weight impacts against the testing surface under certain spring force, leeb hardness means the ratio of the impacting velocity(Va) and the rebounding velocity(Vb) of the impact body when the spherically test tip is located 1mm above the testing surface. The leeb hardness values are calculated by the following formula:

HL=1000*( V/ V


Measuring Method

Leeb Hardness method

Hardness Scale

HL, HB, HRB, HRC, HV, HS, σb

Measuring Range

HLD(200-960), HRC(19.8-68.5), HRB(13.5-100), HB(30-651), HV(80-976), HS(26.4-99.5), σb(375-2639)

Impact Device

D type impact device standard, optional C/G/DC/DL/D+15


±6HLD (HLD=800), Repeatability:less 6HLD (HLD=800)

Measuring Direction

360 degree by manual setting


Steel& Cast Steel, Stainless Steel, GC iron, NC iron, Cast Aluminum alloy, Macht metal, Copper-tin alloy, Brass.


1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS


High Contrast Segment Liquid Crystal Display (LED Backlight)

Data Memory

100 groups (each group include 1-7 testing result and 1 MEAN value)


USB port (Standard) and Blue tooth (Optional)


Thermal Printer with blue tooth (optional)


2 AA batteries

Working Temperature

-10 to +50


153*76*37 (mm) (H*W*D)


280g include batteries


GB/T 17394-1998, ASTM A956


Standard Configuration

Optional Configuration

LM 100 Main Unit

Impact Device: D/C/G/DC/DL/D+15

D Type Impact Device

Standard Test Block

Standard Test Block

Blue tooth module & Thermal Printer

Rubber Sheath


Small Support Ring

Standard Support Ring

Cleaning Brush

Small Support Ring

2 AA Batteries

Special Support Ring

Operating Manual


Instrument Case







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