Mash Project Combined UCI and LEEB Hardness Tester
TKM-459CE Combi

The TKM-459CE Combi gives you all the advantages of both UCI and Leeb methods of hardness testing.
Features:
TKM-459CE Combi Applications:
-
Carbon and structural steels as well as other fine-grained  materials - Hard-surfaced items (cementation, nitride hardening, induction hardening
- Heat-resistant, corrosion-resistant, stainless steels
- Non-ferrous metals and alloys (cast iron, aluminum, bronze, brass)
- Electroplated coating (chrome, copper, nickel, zinc, tin) overlaying
- Items of complex configuration (gear teeth, shafts, pipes of any diameter, grooves, blind holes)
- Thin-walled and small-sized items
- Large items and heavy-duty equipment (pipelines, rails, construction elements)
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Testing Requirement |
Preparation | UCI Method | Leeb Method |
Need no additional preparation | Weighs 2.2 lb. (1 kg) or more Thickness 0.08” (2 mm) or more | Weighs 11 lb. (5 kg) or more Thickness 0.24” (6 mm) or more |
Need to be fixed on the base plate | Weighs less than 2.2 lb. (1 kg) Thickness less than 0.8” (2 mm) | Weight less than 11 lb. (5 kg) Thickness less than 0.24” (6 mm) |
Roughness Requirements | 0.8 – 3.2 Ra (depending on probe) | 3.2 – 7.2 Ra (Depending on probe) |
Hardness Tester Modes: |
Measurement Mode | Readings | Using |
By basic scales | Basic hardness units (HRC, HB, HV) | Hardness testing of the bulk of products |
By additional calibrations to basic scales | By HRA, HRB, HSD scales and ultimate tensile strength | Hardness testing of high-alloy steel special cast iron and nonferrous metals |
By additional scales | Scales are programmed by the user | Special problem solving |
The parameters of the statistical processing of measurements
Probe Specifications - UCI Methods
Photo
| Probe Type | Load
| Length
| Diameter
| Application
|

| A | 5kg (11lbs) | 5.7" (145mm) | 1" (26mm) | Solving of main hardness testing tasks |
H | 1kg (2.2lbs) | 5.7" (145mm) | 1" (26mm) | Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thin walled and small-sized items |
C | 10kg (22lbs) | 5.7" (145mm) | 1" (26mm) | Hardness testing of items with unprepared surface, large items and heavy-duty equipment |

| K | 5kg (11lbs) | 3" (76mm) | 1.3" (33mm) | Hardness testing of inner surface of tubes, tanks, and other hard-to-reach areas |

| AL | 5kg (11lbs) | 7.5" (190mm) | 1" (26mm) | Hardness testing in hard-to-reach areas as holes, grooves, in-between gear teeth zones (length of tip 2.6” (65mm)) |
Probe Specifications - Leeb Method
Photo | Probe Type | Length | Diameter | Application |
 | D | 5.4" (138mm) | 0.8" (21mm) | Solves main hardness testing tasks with surface than 3.2 roughness less than 3.2 Ra |
E | 5.4" (138mm) | 0.8" (21mm) | Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness |
 | G | 7.9" (200mm) | 1.1" (29mm) | Hardness testing of high structures inhomogeneity items with surface roughness more than 7.2 Ra |
Technical Specifications:
Accuracy | 3-5% |
Rockwell | 20-70 HRC |
Brinell | 90-450 HB |
Vickers | 240-940 HV |
Quantity of possible additional scales calibrations | 5 for each scale |
Quantity of additional scales | 3 |
Duration of measurements for average reading calculation | 1-99 |
Memory Capacity | 12,400 Readings |
Maximum quantity of named blocks of readings generated in memory | 100 |
Quantity of algorithms to discard known to be false readings during average value calculation | 3 |
PC Connections | USB |
Power Supply | Li-ion Battery |
Dimensions of hardness tester electronic unit | 4.8" x 2.7" x 1.6" (121 x 69 x 41mm) |
Weight of Electronic Unit | 0.66lbs (0.3kg) |
Weight of A-Probe | 0.33lbs (0.15kg) |
Operating Temperature Range | 5? to 95?F (-15? to 35?C) |
Warranty Period | 1 Year |
Standard Kit Includes:
| - Electronic unit with rechargeable battery
 - UCI probe (A-type)
- Leeb probe with built in cable (D-type)
- Connecting cable for UCI probe (A-type)
- Charger
- PC cable
- Soft case
- Cuff to fix device on arm
- Bag for carrying and storing
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Additional Accessories:
| - Replaceable probes of different construction and load
- Special heads to facilitate positioning of the probe on complex surfaces
- Connection cables
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Dimensions of hardness tester electronic unit |