{"product_id":"manual-geotextile-cone-drop-tester","title":"Manual Geotextile Cone Drop Tester","description":"\u003ch2\u003eManual Geotextile Cone Drop Tester – QualiGTX™ CDT M\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ CDT M Manual Geotextile Cone Drop Tester evaluates the resistance of geotextiles and other geosynthetic\n    materials to dynamic perforation. It measures the diameter of the opening created when a steel cone strikes and\n    penetrates a specimen. This measurement provides a direct basis for comparing the ability of different fabrics to\n    withstand impact damage.\u003c\/p\u003e\n\u003cp\u003eDesigned for straightforward laboratory testing, the QualiGTX™ CDT M uses a fully mechanical operating system. The\n    operator secures the specimen inside the clamping ring, lifts the cone to its designated release position, and\n    activates the latch to drop it onto the center of the material. No electrical connection, sensors, or software are\n    needed. This makes the instrument ready for use after unpacking and leveling, while keeping operating requirements\n    and initial equipment costs lower than those of automated systems. It is particularly suitable for laboratories\n    processing moderate sample volumes.\u003c\/p\u003e\n\u003cp\u003eThe standard configuration includes a 45° stainless steel drop cone with a total mass of 1000 g, a 150 mm clear\n    specimen clamping ring, and a graduated measuring cone for determining perforation diameter. With overall dimensions\n    of 600 × 300 mm and a frame weight of 45 kg, the instrument fits comfortably into space-constrained materials\n    laboratories, university facilities, and on-site testing environments. An automated version is also available from\n    Qualitest for production quality control operations requiring higher testing throughput.\u003c\/p\u003e\n\u003ch2\u003eManual Geotextile Cone Drop Tester – QualiGTX™ CDT M Applications\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ CDT M supports geosynthetic material evaluation where fabrics must withstand contact with coarse,\n    angular fill during installation and service. It helps laboratories determine whether geotextiles can resist\n    localized impact damage before the surrounding structure is subjected to operational loads.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eGeosynthetic Manufacturing Quality Control: Assesses perforation resistance across production batches of\n            woven, nonwoven, and needle-punched geotextiles to maintain consistent product quality.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eProtection Geotextile Selection: Compares cushioning materials installed above and below geomembrane liners\n            by measuring the perforation produced by a concentrated impact.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eRoad and Highway Construction: Evaluates separation and stabilization fabrics intended for installation over\n            soft subgrades before aggregate layers are placed.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eLandfill and Waste Containment: Supports material selection and approval for basal lining and capping\n            systems, where protecting the liner is essential to long-term performance.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eSite and Project Laboratories: Allows incoming geotextile rolls to be checked directly at construction sites\n            without sending specimens to an external testing facility.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eUniversity and Research Laboratories: Provides a practical way to study dynamic perforation characteristics\n            and conduct geosynthetics research without the expense of automated equipment.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eRailway and Ballast Applications: Tests the ability of geotextiles beneath angular railway ballast to\n            withstand direct contact with sharp track-supporting aggregates.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eErosion Control and Riprap Works: Evaluates filter fabrics positioned beneath protective armor stone along\n            coastlines, riverbanks, and lined channels.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eDrainage and Filtration Systems: Checks whether geotextile coverings around aggregate drainage systems can\n            withstand the impact and pressure associated with backfilling.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eManual Geotextile Cone Drop Tester – QualiGTX™ CDT M Key Features\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ CDT M provides a mechanically operated solution for standardized cone drop testing. Its fixed\n    structural components maintain the critical test dimensions and operating tolerances needed for consistent\n    measurements.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eHand-Operated Cone Release: A straightforward lifting and latching arrangement gives technicians direct\n            control over specimen testing. Its mechanical design eliminates dependence on electrical power or pneumatic\n            systems.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eAccurate 45° Stainless Steel Drop Cone: Maintains the specified 45° tip angle, 50 mm maximum diameter, and\n            total mass of 1000 ± 5 g, including the guide rod, to ensure the required impact conditions.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eIncluded Graduated Measuring Cone: Supplied with a 600 g small-angle measuring cone for determining the\n            resulting perforation diameter, eliminating the need to purchase a separate measuring instrument.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eConsistent 500 mm Drop Distance: Maintains a tip-to-specimen clearance of 500 mm at the release position,\n            with a tolerance of ±2 mm, reducing variations caused by manual height adjustments.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eStandardized 150 mm Clamping Ring: Secures specimens around a consistent clear opening, ensuring the same\n            unsupported testing diameter for every measurement.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eVertical Cone Guidance: Keeps the drop cone aligned throughout its downward movement and directs the tip\n            toward the specimen center to prevent angled impacts that could affect perforation results.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eSpace-Efficient 600 × 300 mm Design: Requires minimal installation space and can be positioned beside\n            laboratory walls or at the end of existing workbenches.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eStable 45 kg Construction: Provides sufficient frame stability for repeated testing while allowing two\n            technicians to relocate the equipment when required.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n    \u003cli\u003e\n\n\n        \u003cp\u003eCorrosion-Resistant Stainless Steel Cone: Retains the cone's surface finish and tip geometry over extended\n            service periods, helping maintain measurement consistency.\u003c\/p\u003e\n\n\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Test Method\u003c\/h2\u003e\n\u003cp\u003eThe cone drop test evaluates how geotextile materials respond to a controlled impact under repeatable conditions.\n    During each test, a 1000 g cone is released from a fixed height of 500 mm, delivering approximately 4.9 joules of\n    impact energy to the specimen. Its 45° pointed tip concentrates this energy over a contact area of only a few square\n    millimeters, generating substantially greater localized stress than a uniformly distributed load.\u003c\/p\u003e\n\u003cp\u003eAs the cone penetrates the fabric, individual filaments stretch and shift relative to one another at their bonding\n    points. Continued loading eventually causes the fibers to rupture, allowing the cone to pass through the specimen.\n    Differences in this deformation and failure behavior determine the size of the resulting perforation.\u003c\/p\u003e\n\u003cp\u003eUnlike electronic testing systems, the QualiGTX™ CDT M determines the result through direct measurement of the\n    opening. After removing the drop cone, the technician inserts the graduated measuring cone into the perforation\n    until it makes contact with the fabric. The diameter is then read directly from the scale. Dense woven geotextiles\n    and heavy needle-punched materials generally recover around the opening, resulting in smaller measurements. Lighter\n    nonwoven fabrics tend to develop wider tears, producing larger readings.\u003c\/p\u003e\n\u003cp\u003eSpecimen support conditions also influence the measured response. The 150 mm clamping ring secures the material\n    around its perimeter while leaving the central area unsupported. This allows the specimen to deflect downward during\n    impact, simulating its behavior over a compressible subgrade. The resulting test arrangement represents a common\n    field condition in which angular aggregate falls onto geotextile during placement.\u003c\/p\u003e\n\u003cp\u003eDynamic perforation testing provides an index property for evaluating geotextile resistance to impact damage. Its\n    results are intended to complement static puncture resistance and tensile strength measurements, providing\n    additional information about material performance rather than replacing these tests.\u003c\/p\u003e\n\u003ch2\u003eManual Geotextile Cone Drop Tester - QualiGTX™ CDT M Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table table-style-align-center\" align=\"center\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eParameter\u003c\/th\u003e\n            \u003cth\u003eSpecification\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eClamping Ring Inner Diameter\u003c\/td\u003e\n            \u003ctd\u003e150 ± 0.5 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDrop Height (Cone Tip to Specimen)\u003c\/td\u003e\n            \u003ctd\u003e500 ± 2 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDrop Cone Material\u003c\/td\u003e\n            \u003ctd\u003eStainless steel\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDrop Cone Maximum Diameter\u003c\/td\u003e\n            \u003ctd\u003e50 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDrop Cone Angle\u003c\/td\u003e\n            \u003ctd\u003e45°\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDrop Cone Total Mass (Including Guide Rod)\u003c\/td\u003e\n            \u003ctd\u003e1000 ± 5 g\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eGraduated Measuring Cone Mass\u003c\/td\u003e\n            \u003ctd\u003e600 ± 5 g\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eCone Lifting and Release\u003c\/td\u003e\n            \u003ctd\u003eManual\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSpecimen Clamping\u003c\/td\u003e\n            \u003ctd\u003eManual clamping ring\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eOverall Dimensions (W × D × H)\u003c\/td\u003e\n            \u003ctd\u003e600 × 300 × 1500 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eNet Weight\u003c\/td\u003e\n            \u003ctd\u003e45 kg\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIncluded Components\u003c\/h3\u003e\n\u003ctable class=\"table table-style-align-center\" align=\"center\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eItem\u003c\/th\u003e\n            \u003cth\u003eQuantity\u003c\/th\u003e\n            \u003cth\u003eDescription\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eStainless Steel Drop Cone Assembly\u003c\/td\u003e\n            \u003ctd\u003e1\u003c\/td\u003e\n            \u003ctd\u003e45° cone angle, 50 mm maximum diameter, 1000 ± 5 g total mass including guide rod\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eGraduated Measuring Cone\u003c\/td\u003e\n            \u003ctd\u003e1\u003c\/td\u003e\n            \u003ctd\u003e600 ± 5 g small-angle cone for reading perforation diameter\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSpecimen Clamping Ring Assembly\u003c\/td\u003e\n            \u003ctd\u003e1 set\u003c\/td\u003e\n            \u003ctd\u003e150 ± 0.5 mm clear inner diameter\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":53603115761975,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/manual-geotextile-cone-drop-test.webp?v=1794474588","url":"https:\/\/qualitest.us\/fr\/products\/manual-geotextile-cone-drop-tester","provider":"Qualitest USA LC","version":"1.0","type":"link"}