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A605, No.5 Bldg, BaiziYuan, Chaoyang, Beijing, 100124, China.

 
       
       
       
       
   

 

 

 

Leeb Hardness Tester - TH140

Brief Introduction

 

Hardness Scale  HL. HRC. HRB. HV. HB. HS. 
Memory  48~350 group (Impact times 32-1)
   
Tensile Strength U.T.S. range  374~2659 Mpa
Accuracy  6HLD (760 30 HLD)enor of displayed value 6HLD (760 30HLD )repeatibity of displayed value 
Standand Import Device 
Optional Impact Device  DC/D +15/G/C/DL
Max. Workpiece Hardness  996HV (For Impact Device D/DC/DL/D+15C) 646HB (For Impact Device G )
Min. Radius of Workpiece (convex/concave) Rmin=50mm (with suport ring Rmin=10mm
Min. Workpiece weight  2~5kg on stable support   0.05~2kg with compact coupling 
Min. Workpiece Thickness 5mm(Impact Device D/DC/DL/D+15 ) 1mm (Impact Device C)10mm (Impact Device G )
Min. Thickness of Hardened layers  0.8MM
Power  Recharge  able batteries NiMH 5*1.2v 600mA 
Continuous Working Time  About 50h (without printing and backlight )
Charging  Time  2~3.5 hours 
Operating  Temperture 0~40℃
Relative Humidity  ≤90%
Overall Dimensions  268*86*50mm
Weight  530g(Including Impact Device and printer

Measuring Range

 

Material  Hardness Scale  D/DC LD:170-900 D+15 LD+15:330~900 C LC: 350~960 DL LDL:560~950 G LG: 200~750
Steel & Steel Cast  HRC 20.3~68.4 19.3~67.9 20~69.5 20.6~68.2  
HRB 38.4~99.8     37~99.9 47.7~99.9
HB 81-654 80-638 80-683 81-646 90-646
HV 81-955 80-937 80-966 80-950  
HS 32.5-99.5 33.3-99.3 31.8-102.1 30.6-96.8  
CWT/ST  HRC 20.4-67.1 19.8-68.2 20.7-68.2    
HV 80-898 80-935 100-941    
C Alum  HB 19-164   23-210   32-168
HRB 23.8-84.6   22.7-85   23.8-85.5
NC Iron HB 131-387        
GC. Iron HB 93-334        
Brass HB 40-173        
HRB 13.5-95.3        
Bronze HB 60-290        
Copper HB 45-315        

Standard Delivery

  • Main unit with removable printer
  • Impact Device type D
  • Test block with HLD value
  • Charger
  • Cleaning brush
  • Table support for main unit
  • Certificate
  • Instruction manual
  • Warranty card
  • Carrying case

Optional Accessories

  • Printing paper
  • Special Impact Devices
  • Support rings
  • Dataview and cable

Model Choosing Guide for Optional Compact

Application range of Impact Devices  D type for general pieces DC type for hole or cylinder DL type for long and marrow channel or hole  D+15 type for measuring in grooves or recessed surfaces  C type for measuring light and small piece and surface haedened layer  G type for measuring heavy and rough cast and forged pieces 
Impact Device  D/DC/DL D+15   C   G  
Impace energy 1 lmj 1 lmj 2.7mj  90mj
Mass of impact body  5.5g/5.5g/7.3g  7.8g 3.0g 20g
Hardness of spherical test tip 1600HV  1600HV  1600HV  1600HV 
Diameter of spherical test tip  3mm  3mm  3mm  5mm
Material of spherical test tip  Tungsten carbide  Tungsten carbide  Tungsten carbide  Tungsten carbide 
Diameter of impact Device  20mm  20mm  20mm  30mm
Length of impact Device  147/86mm/75mm 162mm 141mm 254mm
Weight of impact Device  50g 80g 75g 250g
Max.  Hardness of workpiece  940/940/950HV 940HV 1000HV 650HB 
A verage surface roughness of the test piece  Ra: 1.6um  Ra: 1.6um  Ra: 0.4um  Ra: 6.3um 
Min. weight of test picee  Direct measuring  5kg 5kg 1.5kg 1.5kg
On stable support  2kg 2kg 0.5kg  5kg 
With compact coupling  0.05kg  0.1kg 0.02kg 0.5kg
Min. thickness of test piece  Compact coupling  5mm 5mm 1mm 10mm
Min. case hardness depth  0.8mm 0.8mm 0.2mm 1.2mm
Size of infentation of spherical test 
Hardness 300HV  Indentation diameter 0.54mm 0.54mm 0.38mm 1.03mm
Indentation depth  24um 24um 12um 53um
Hardness 600HV  Indentation diameter  0.54um 0.54um 0.32um 0.9.um
Indentation depth  17um 17um 8um 41um
Hardness 800HV  Indentation diameter  0.35mm 0.35mm 0.35mm  
Indentation depth  10um 10um 7um  

 

Devices

  • Developed Model of HLN-11A
  • Automatic identification of Impact devices
  • On-Board memory holds 48-350 groups of data
  • Software to connect with PC
  • Upper and lower limit and sound alarm
  • Large LCD with backlight, showing all functions and parameters
  • Press HELP key can obtain operating tips in any displaying interface
  • Direct display of hardness scales HRB, HRC, HV, HB, HS,HL
  • Conversion to tensile strength (U.T.S)
  • For all metallic materials
  • Test at any angle, even upside down
  • Removable printer included
  • Wide measuring range (see next page)
  • Six Impact Devices are available for special application
  • Battery low indication and sound alarm

Technical Specifications

 

Application range of Impact Devices  D type for general pieces DC type for hole or cylinder DL type for long and marrow channel or hole  D+15 type for measuring in grooves or recessed surfaces  C type for measuring light and small piece and surface haedened layer  G type for measuring heavy and rough cast and forged pieces 
Impact Device  D/DC/DL D+15   C   G  
Impace energy 1 lmj 1 lmj 2.7mj  90mj
Mass of impact body  5.5g/5.5g/7.3g  7.8g 3.0g 20g
Hardness of spherical test tip 1600HV  1600HV  1600HV  1600HV 
Diameter of spherical test tip  3mm  3mm  3mm  5mm
Material of spherical test tip  Tungsten carbide  Tungsten carbide  Tungsten carbide  Tungsten carbide 
Diameter of impact Device  20mm  20mm  20mm  30mm
Length of impact Device  147/86mm/75mm 162mm 141mm 254mm
Weight of impact Device  50g 80g 75g 250g
Max.  Hardness of workpiece  940/940/950HV 940HV 1000HV 650HB 
A verage surface roughness of the test piece  Ra: 1.6um  Ra: 1.6um  Ra: 0.4um  Ra: 6.3um 
Min. weight of test picee  Direct measuring  5kg 5kg 1.5kg 1.5kg
On stable support  2kg 2kg 0.5kg  5kg 
With compact coupling  0.05kg  0.1kg 0.02kg 0.5kg
Min. thickness of test piece  Compact coupling  5mm 5mm 1mm 10mm
Min. case hardness depth  0.8mm 0.8mm 0.2mm 1.2mm
Size of infentation of spherical test 
Hardness 300HV  Indentation diameter 0.54mm 0.54mm 0.38mm 1.03mm
Indentation depth  24um 24um 12um 53um
Hardness 600HV  Indentation diameter  0.54um 0.54um 0.32um 0.9.um
Indentation depth  17um 17um 8um 41um
Hardness 800HV  Indentation diameter  0.35mm 0.35mm 0.35mm  
Indentation depth  10um 10um 7um  

Specification for Optional Support Rings


 

 
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Last modified: 11/20/14