The manual turret microhardness tester is based on the Vickers (HV) / Knoop (HK) hardness test: manually switch the turret to the diamond indenter, apply the specified small test force (usually 0.01 t ...
The manual turret microhardness tester is based on the Vickers (HV) / Knoop (HK) hardness test: manually switch the turret to the diamond indenter, apply the specified small test force (usually 0.01 to 1 kgf), hold the load and then release it; then rotate the turret back to the objective lens, and measure the diagonal length of the indentation under the microscope; the built-in algorithm of the instrument calculates the hardness value according to the formula (HV = constant × test force / indentation area).
Main uses and application scope:
1. Steel, non-ferrous metals, metal foils, hard alloys, metal thin plates, microstructure
2. Carburized, nitrided and decarburized layers, surface hardened layers, electroplated layers, coatings
3. Glass, wafers
Optional built-in printer, one-click print of measurement data, or upload to computer. Note: Optional side-shaking lifting system to make the lifting system more stable. Standard configuration
Optional hardness tester measurement software to eliminate human error, computer operation, and improve efficiency。
Main functions and features:
1. The optical system designed by optical engineers not only provides clear images but can also be used as a simple microscope. The brightness is adjustable, offering a comfortable visual experience and reducing fatigue even after prolonged use.
2. The hardness value, conversion of hardness, test method, test force, holding time, measurement count, and test process can all be directly displayed on the industrial screen, making the operation intuitive and clear.
3. The cast aluminum shell is formed in one piece, ensuring a stable structure that does not deform. It is coated with pure white automotive paint, which is of high grade, has strong scratch resistance, and remains as bright as new even after years of use.
Technical Specifications：
| Parameter | Specification |
|---|---|
| Microhardness Scales | HV0.01, HV0.025, HV0.05, HV0.1, HV0.2, HV0.3, HV0.5, HV1 |
| Display | Dwell time (seconds), hardness value |
| Test Force (gf) | 10, 25, 50, 100, 200, 300, 500, 1000 |
| Loading Control | Automatic (load/dwell/unload) |
| Test Force Dwell Time (s) | 5–60 |
| Test Force Selection | External force selection knob; test force automatically displayed on the LCD screen |
| Objective Magnification | 10×, 40× |
| Optical Path | Dual optical paths (eyepiece and CCD camera channel) |
| Optical System | 1. Manual micrometer eyepiece; 2. Total magnification (μm): 100× (observation), 400× (measurement); 3. Measuring range (μm): 200; 4. Resolution (μm): 0.25 |
| Hardness Measurement Range | (5–3000) HV |
| XY Stage | Dimensions (mm): 100×100 Travel range (mm): 25×25 Minimum reading (mm): 0.01 |
| Max. Specimen Height (mm) | 110 |
| Max. Specimen Width (mm) | 85 (distance from indenter centerline to frame) |
| Power Supply | AC 220V / 50Hz |
| Weight (kg) | 35 |
| Overall Dimensions (mm) | 540 × 200 × 530 |
Configuration List：
| Item | Description | Item | Description | ||
|---|---|---|---|---|---|
| 1 | Main unit: 1 indenter for microscope, one 10X objective, one 40X objective | 2 | Stage, weights, microscope accessory box | ||
| 3 | Weights | 6 pcs | 4 | Weight rod | 1 pc |
| 5 | Cross stage | 1 pc | 6 | Thin sheet holding fixture | 1 pc |
| 7 | Flat clamping stage | 1 pc | 8 | Fine wire holding fixture | 1 pc |
| 9 | Spirit level | 1 pc | 10 | Screwdrivers | 2 pcs |
| 11 | Leveling screws | 4 pcs | 12 | External power cord | 1 pc |
| 13 | 10X digital micrometer eyepiece | 1 pc | 14 | Micro Vickers hardness test blocks (one HV1, one HV0.2) | 2 pcs |
| 15 | Fuses (1 A) | 2 pcs | 16 | Product certificate of conformity | 1 set |
| 17 | Product instruction manual | 1 set | 18 | Dust cover | 1 pc |
Advantages and Disadvantages：
Advantages: Affordable price, low failure rate, and low maintenance cost; manual control is suitable for small-batch tests requiring precise positioning.
Disadvantages: Efficiency is lower than that of automatic turrets; frequent manual turret operation requires high proficiency from the operator and can cause fatigue after long periods of use.
Key points for selection and maintenance：
Select the model based on sample size, test force range, and precision requirements;
Regularly calibrate with standard hardness blocks;
Keep the optical system clean to avoid dust affecting indentation measurement;
Rotate the manual turret gently to prevent positioning deviation.
