Core Operating Principles & Mechanics
This 20kN Universal Testing Machine runs on three key components working together without any frustrating hiccups:
Consistent Crosshead Motion
Instead of jerky, unpredictable pulling, the crosshead glides up and down using a high-precision, maintenance-free servo drive system that operates smoothly and maintains a remarkably steady pace.
This gives you an incredibly wide speed range from 0.2 all the way to 1000 mm/min, delivering superior control during test runs.
High-Resolution Force Tracking
An extremely responsive load sensor registers every minor increment of force with a staggering 32-bit force resolution, while the 400 Hz sampling rate continuously tracks the microscopic stretching or shrinking of your test sample.
Plus, the high-speed signal feedback mechanism drastically reduces the risk of sudden machine overload.
Interchangeable Fixtures
You do not need to fill your laboratory floor with several different single-purpose units. You simply swap out the heavy-duty jaws or steel platens to switch from pulling thin plastic films to crushing thick packaging.
Whether you are dealing with rubber, paper, metals, or medical items, the generous test space accommodates large specimens easily (and if you need even more room, we offer the QM-20-M1F-L with an extended height).
Tension & Compression Methodologies
Depending on what you are trying to figure out, you have two main setups to play with to either pull specimens apart until they fracture or squeeze them until they fail.
Tensile Tester Configuration
When setting up the system as a high-performing Tensile Tester to determine when a plastic specimen reaches its breaking limit, the procedure mirrors a controlled, high-force pulling exercise. You lock your specimen into heavy-duty wedge grips so it is held securely under load.
From there, the machine begins pulling slowly, stretching the material steadily until it reaches its structural limit and snaps. This method delivers the vital numbers you need, easily meeting strict criteria for standardized testing like ASTM D638 or ISO 13934-1.
Compression Tester Configuration
On the other hand, when configuring the unit as a dedicated Compression Tester to observe when a block of packaging foam completely flattens out, the procedure is reversed. You place your test sample flat between exceptionally flat steel blocks, and the crosshead applies force straight down.
A built-in precision jog wheel facilitates ultra-fine tuning of these machine movements, dramatically enhancing your positioning accuracy before the test even starts. This method reveals exactly when a structural material cracks, loses its shape, or collapses under heavy downward pressure.
Data Acquisition & Calibration Standards
While the machine stretches or compresses your test samples, our specialized, Windows-compatible testing software (connected via TCP/IP) is busy converting those raw numbers into a remarkably clear graph of stress and strain. This visual curve shows you exactly where your material behaves like an elastic band and where it permanently deforms, seamlessly switching between metric and imperial units.
We verify these load sensors using certified calibration weights to meet strict ASTM E4 and ISO 7500-1 requirements. The force calibration is satisfyingly spot on, offering highly accurate testing that is completely straightforward to manage. The data extracted is incredibly reliable all the way through, and the resulting customizable test report is sheer perfection.
