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What is quality? The answer is given by this 2012 device from LABTT
2026-09-29
A white Vickers hardness tester was recently pushed back to LABTT's workshop.
Its paint surface is not as shiny as the new machine, with traces of use on the corners, but the body is perfectly aligned. Power on, the panel displays normally.
01 A hardness tester manufactured in 2012
The nameplate of this hardness tester is printed with:
THV-50 Vickers hardness tester
Factory number: 103
Date of manufacture: September 4th, 2012
Shanghai Teshi Precision Instrument Co., Ltd
From September 4th, 2012, to now 14 years.
This device with the serial number 103 was sent out of the workshop and sold to a medical equipment company.
For 14 years, it has been used in customer laboratories and tested countless medical device related materials. This time I returned to the factory due to a minor malfunction.
02 Open the hood, there is not a single rust spot inside
Returning to the factory for repair, as usual, first open the box and inspect the interior.
The feedback from the workshop master is very direct: the equipment is overall intact and there is no rust inside.
Those who make precision instruments know that hardness testers are devices that are powered on year-round and have mechanical loading. Optical components, screw rods, and indenter mechanisms can be compromised in accuracy if any part of them becomes damp or oxidized. After using many devices for three to five years, rust and oil sludge begin to appear inside the machine cavity.
This 14-year-old machine is clean and tidy after disassembly. The malfunction itself is not significant - just adjust the objective lens.
03 Compression test, the indentation is clear as before
According to the process, on-site pressure is applied, standard blocks are placed on the table, and loading, holding, and unloading are carried out normally, just like the new machine.
Turn to the eyepiece and take a closer look - the diamond shaped indentation is clear, and all four edges are intact.
Indentation is the direct basis for judging the condition of equipment: if it cannot be pressed out, if it is pressed off, or if the edges are blurred, it indicates that there is a problem with the equipment. The diamond shaped indentation produced by this device indicates that there is no significant drift in the loading system, optical system, and positioning mechanism.
What has this device experienced from 2012 to 2026?
During this period, the company changed its name from Teshi to LABTT, and batches of new hardness testers were produced in the workshop. The standards of the medical device industry were also constantly updated.
And it itself, used by customers for 14 years, only came back once halfway through.
The quality of a device will be determined by time.
After the repair of item 103 is completed, it will be repackaged and sent back to the medical device company, and it can still continue to serve.
From Teshi to LABTT, the name has changed and the production line has been updated, but the requirements for quality have never changed. Every hardness tester that leaves the factory must withstand the dual inspection of time and accuracy.
Nowadays, LABTT provides a full range of Brinell, Vickers, Rockwell, and Blowe hardness testers, which are widely used in fields such as metals, medical devices, aerospace, automotive components, and research institutes. Whether it's precision testing in the laboratory or quality control in the workshop, LABTT is using stable and reliable equipment to help customers ensure quality.
