In the fields of industrial production and scientific research, from pills and catalyst particles in the pharmaceutical industry to sand and gravel aggregates in building materials, particulate matter is ubiquitous. They may seem small, but they have a key indicator related to product quality and performance - particle strength. The DL3 particle strength tester, this compact and precise device, is like a "strongman judge", capable of accurately measuring the "compression code" of particles.

1、 Principle cornerstone: Mechanical pressure, insight into microscopic toughness

　　DL3 particle strength testerThe core relies on the principle of static loading. When a single or multiple particles are placed in the specially designed fixture of the instrument and the equipment is started, the motor drives the transmission device to apply axial pressure to the particles at a constant rate. As the pressure gradually increases, the internal stress of the particles continues to accumulate, like a slowly tightened bowstring. At first, particles maintain their shape through intermolecular forces, crystal structure, and other factors. However, once external forces break through their load-bearing limitations, the particles will rupture. The larger pressure value recorded at this time is the particle strength, which intuitively reflects its ability to resist external compression. Particles made of different materials and processes have varying internal structures and compressive properties. The measuring instrument quantifies the abstract concept of "toughness" into specific numerical values.

2、 Exquisite construction: Multi component collaboration to create a precise measurement chain

1. Force application system: This is the "power heart" of the instrument. High precision motors paired with reducers ensure stable and controllable pressure output, with speed errors often controlled within a small range to avoid pressure shock interference in measurements. The top of the force rod is equipped with a miniature pressure sensor, like a sensitive "tactile nerve endings", which can sense subtle changes in pressure in real time with an accuracy of up to millinewtons. Even the slightest force fluctuations can be accurately captured, providing a reliable source for subsequent data processing.

2. Fixture components: Equipped with various fixtures for particles of different shapes and sizes. Spherical particles are suitable for V-shaped groove fixtures to firmly fix the sphere and prevent rolling deviation; Irregular particles are wrapped and clamped with flexible silicone pads, which not only conforms to the contour but also avoids damage. Calibration of fixture installation position ensures uniform force distribution, eliminates misjudgment caused by local stress concentration, and allows every particle to be tested on a fair "playing field".

3. Control system and display terminal: Modern measuring instruments often use microcomputer control, and the operator can set test parameters such as loading speed, high pressure threshold, etc. by simply tapping the screen. Throughout the testing process, the pressure displacement curve is plotted in real-time on the display screen, and the peak corresponds to the moment of particle breakage, presenting key nodes at a glance; The built-in algorithm can also quickly analyze data, obtain statistical values such as average intensity and standard deviation, and assist in determining the stability of particle population quality.

3、 Diversified applications: running through multiple industries, safeguarding quality control

1. Pharmaceutical field: Pills need to go through packaging and transportation bumps to have sufficient strength to prevent wear and powder loss. The DL3 particle strength tester assists pharmaceutical companies in screening granulation processes, optimizing adhesive dosage, ensuring complete drug appearance and precise dosage, and ensuring that each tablet meets strict pharmacopoeia standards.

2. Mining processing: After crushing and screening, the qualified particles of the ore must meet the strength requirements of subsequent smelting and sorting processes. With the help of this instrument, the toughness of ores in different mining areas can be evaluated, and the blasting intensity and crushing equipment selection can be guided in reverse, reducing production energy consumption and improving metal recovery rate.

3. Food industry: Leisure snacks such as potato chips and nuts should have a crispy texture and a shelf life that does not break. Manufacturers use measuring instruments to simulate stacking, loading and unloading impacts, and improve baking and frying parameters based on the results, balancing flavor and storage resistance, allowing consumers to enjoy delicious food while harvesting intact products.

It is precisely through solid principles, exquisite design, and extensive adaptability that the small DL3 particle strength tester can be deeply integrated into various links of the industry chain, unlocking the "compressive password" of particles, empowering products to strive for excellence, and promoting high-quality development of the industry.