Guangdong Duban Technology Co., Ltd
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DB20-LX-SA/SB/SC Sand Mould Surface Hardness Tester
The sand mould surface hardness tester is a portable and high-precision physical testing instrument specially designed for the foundry industry. Its core function lies in scientifically and quantitatively determining the surface hardness of sand molds and sand cores made from wet molding sand (wet moulding sand). This key physical parameter serves as the direct basis for evaluating the compactness uniformity, structural strength and surface stability of sand moulds. It provides indispensable and quantified technical data support for foundry engineers to formulate, verify and optimize molding and core-making process regulations, and is an important tool for ensuring that the quality of castings is controlled from the source.
DB22-280S Sonic Belt Tension Meter
In modern industrial transmission systems, the stability and efficiency of belt drives are of vital importance. Improper tension is the main cause of premature belt wear, increased noise, energy loss and even transmission failure. To achieve scientific management and precise control of belt tension, we have launched a brand-new acoustic belt tension measuring instrument based on the classic physical principle of "transverse vibration of strings".This acoustic belt tension measuring instrument is not only a measuring tool but also a powerful partner for achieving intelligent and precise maintenance of the transmission system. It transforms profound physical principles into simple and user-friendly daily operations, helping you shift from an "experience-driven" maintenance model to a "data-driven" new one, ultimately achieving the strategic goals of enhancing the overall efficiency of equipment and reducing total operating costs.
DB22-280B Belt Tension Meter
The Belt Tension Meter Mainly use for automotive belt tension measurement, also can measure and adjust ribbon,filamentous, linear, reticular and other wide objects tension. Applicable to the automotive, textiles, wire and cable, metalwire, plastic film, paper, printing, film industries etc.
HM-934-1Barcol hardness tester
Is the latest development and design of digital indentation hardness tester.Mainly used in aluminum processing industry. Used for testing pure aluminum, soft aluminum alloy, thick aluminum alloy,aluminum strip, aluminum section bar, aluminum bar, aluminum casting, aluminum forging and aluminum alloyproducts. Can also be used in glass steel industry.The relevant industry standard is ASTM B648-10(2015),ASTM D2583-13, GB/T 3854-2005.
DB22-HM455 LEEB HARDNESS TESTER
It is used for failure analysis of installed mechanical or permanent assembly parts, mold cavities, heavy workpieces,pressure vessels, turbogenerator sets and equipment, workpieces with very narrow test space, bearings and otherparts, requiring regular original records of test results, material classification of metal material warehouse, and rapid inspection
DB10-0735 Brick Rebound Hammer
The brick rebound tester is an advanced non-destructive testing instrument specially designed for fields such as construction engineering, quality supervision, house safety appraisal and cultural relic protection. It is mainly used for on-site rapid and convenient estimation of the compressive strength and grade of masonry materials such as sintered common bricks and sintered perforated bricks. This instrument adheres to the classic principle of rebound detection. Through scientific mechanical structure and rigorous metrological calibration, it establishes a reliable correlation between the surface hardness of brick samples and their internal compressive strength. It is an indispensable tool for evaluating the mechanical properties of brick masonry.
DB25-204TR Soil penetrometer
This instrument is a special instrument for testing soil hardness. Compacting soil can prevent water infiltration,reduce the utilization rate of fertilizer, affect plant root growth, and even lead to crop yield reduction. Therefore,the compactness of soil is particularly important for guiding agricultural production, which can be a good guide to arable land and highway construction.
DB20-LX-F Sponge hardness tester
The sponge hardness tester is suitable for measuring the hardness of soft foam materials and polyurethane foam rubber products. This type of hardness tester differs from other hardness testers in terms of measurement and application. During use, the indenter directly contacts the sample and uses its own weight as the force load.
DB25-204T Tablet hardness tester
The tablet hardness tester is a key quality control instrument used in the pharmaceutical, food, chemical and other industries to precisely measure the hardness and brittleness of tablets (such as pills, candies, health products, etc.). Its application runs through the entire process of product research and development, production and quality assurance.
DB20-LX-DW Wood surface hardness tester
The hardness of wood is directly proportional to its ability to resist plastic deformation. When a hard steel ball presses into the surface of a softer wood, permanent indentations will occur on the wood. The higher the hardness of the wood, the greater the force required to produce an indentation of the same depth, or in other words, the depth and area of the indentation produced under the same force will be shallower.
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