Leeb Hardness Tester for Leeb Hardness Test (MH100) /Leeb Hardness Tester/Leeb Hardness Test/Hardness Tester
|FOB Unit Price:||US $800 US $660|
|Purchase Qty. (Pieces)||FOB Unit Price|
|Transport Package:||Portable Case|
|Payment Terms:||T/T, Western Union|
- Model NO.: MH100
- Trademark: Joinstars
- Measuring Direction : Supprt 0~360o: Hardness Scales: Hl, Hb, Hrb, HRC, Hra, Hv, Hs
- Origin: China
Function & application
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts.
Testing surface of a small hollow space
Requirements of formal original record for test results
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
HL- Leeb hardness value
Vr - Rebound velocity of the impact body
Vi - Impact velocity of the impact body
Relative humidity: ≤90%;
The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and heavy dust.
High-contrast Segment LCD ,easy to use
Support Steel ,when using D sensor to test steel,it can show HB directly.
Software calibration automatically.
100 groups (impact times 32 ~ 1) hardness measurements, each set of data includes single testing value,average value, measurement date / time, impact direction, frequency, material, hardness, and other information.
Real-time display the remaining battery power, charging progress is displayed while charging.
USB interface to PC for data communication
Data processing software can do transmission measurements, the measured value storage management, statistical analysis of the measured value, the measured value of the print report and batch set the instrument parameters .
Integrated compact design, small size, portable, highly integrated, stable and reliable performance, suitable for harsh environment field operations, prevent from vibration, shock and electromagnetic interference.
Operating Method and Attentions
Press the power key to start up the instrument. The instrument then comes into working mode.
Pushing the loading-tube downwards until contact is felt. Then allow it to slowly return to the starting position or using other method locking the impact body.
Press the impact device supporting ring firmly on the surface of the sample, the impact direction should be vertical to the testing surface.
4 Testing-Press the release button on the upside of the impact device to test. The sample and the impact device as well as the
operator are all required to be stable now. The action direction should pass the axis of the impact device.
-Each measure area of the sample usually need 3 to 5 times of testing operation. The result data dispersion should not
more than mean value±15HL.
-The distance between any two impact points or from the center of any impact point to the edge of testing sample
should conform to the regulation of Table 4-1.
-If want accurate conversion from the Leeb hardness value to other hardness value, contrastive test is needed to get
conversion relations for the special material. Use inspection qualified Leeb hardness tester and corresponding
hardness tester to test at the same sample respectively. For each hardness value, each measure homogeneously 5
points of Leeb hardness value in the surrounding of more than three indentations which need conversion hardness,
using Leeb hardness arithmetic average value and corresponding hardness average value as correlative value
respectively, make individual hardness contrastive curve. Contrastive curve at least should include three groups of
|Type of Impact Device||Distance of center of the two indentations||Distance of center of the indentation to sample edge|
|Not less than (mm)||Not less than (mm)|
5 Read Measured Value
After each impact operation, the LCD will display the current measured value, impact times plus one, the buzzer would alert a long howl if the measured value is not within the valid range. When reaching the presetting impact times, the buzzer will alert a long howl. After 2 seconds, the buzzer will alert a short howl, and display the mean measured value.
1.unscrew the support ring
2.take out the impact body
3.spiral the nylon brush in counterclockwise direction into the bottom of guide tube and take it out for 5 times
4.install the impact body and support ring when complete.
Release the impact body after use.
Any lubricant is prohibited inside the impact device
|Impact direction||vertically downward, oblique, horizontal, oblique, vertical upward, automatically identify|
|Error||Impact device D:±6HLD|
|Repeatability||Impact device D:±6HLD|
|Material||Steel and cast steel,Cold work tool steel,Stainless steel,Grey cast iron,Nodular cast iron,Cast alum|
|Min depth for harden layer||D≥0.8mm;C≥0.2mm|
|Display||High-contrast Segment LCD|
|Storage||up to 100 groups(Relative to average times 32~1)|
|Calibration||SIngle point calibration|
|Data printing||Connect PC to print|
|Working voltage||3.7V(Built-in lithium polymer battery)|
|Power supply||5V/500mA;recharge for 2.5~3.5 h|
|Standby period||About 200h(without backlight)|
|Shell meterial||ABS engineering plastic|