In the contemporary era of mega-infrastructure, the role of coarse-grained soil—comprising gravels, cobbles, and rockfills—has transitioned from mere fill material to a critical component of hydraulic engineering. From the tailings dams of Western Australia to the high-speed rail embankments traversing the Eurasian continent, the permeability coefficient ($k$) is the fundamental variable determining safety, longevity, and environmental compliance.
The global market for geotechnical testing equipment is experiencing a CAGR of 6.5%, driven largely by "Sponge City" initiatives in Asia and flood defense upgrades in Northern Europe. Engineers are no longer satisfied with "good enough"; they require high-precision, digitalized instrumentation that provides an audit trail for regulatory submission.
Transitioning from manual reading to LVDT and pressure transducer integration for real-time Darcy's Law calculations.
Advanced models allowing for the testing of unsaturated coarse soils, critical for arid climate embankment analysis.
Modular test cylinders that can be swapped based on maximum grain size (Dmax), preventing wall effects in large-grain gravels.
With more than 15 years of civil engineering background, located in new technology industry development zone in Xi'an, an ancient city in China. It covers an area of 7500 square meters of building area. We manufacture and supply testing instruments for civil engineering, geological survey, water conservancy and hydropower, roads and bridges, highways, railways and airports.
Zealchon is engaged in manufacturing and supplying qualitative array of research and laboratory testing equipment. Zealchen specialize in civil engineering research and experimental apparatus; another is the semiconductor laser research and development.
In high-altitude mining regions of South America, coarse-grained testers are used to ensure the permeability of rockfill dams, preventing internal erosion and catastrophic failure during seasonal melt.
Ensuring the grading and drainage capacity of ballastless track subgrades. Our testers help optimize the gravel-to-sand ratio to maintain 24/7 drainage integrity under cyclic loading.
In the Middle East, testing large-diameter dredged materials for seawall construction, where salt-water resistance of the testing apparatus is a critical custom requirement.
Our "Xiya" trademark is not just a brand; it is a Shaanxi Province rated hallmark of quality. Our expertise is rooted in deep academic collaboration. Under the guidance of professors from Chang'an University Highway College and Xi'an University of Technology, we have developed professional core technology instruments that fill domestic and international gaps.
Our manufacturing workshop utilizes state-of-the-art CNC lathes, milling machines, and argon arc welding to ensure every permeability tester meets the rigorous demands of ASTM and ISO standards. This blend of academic rigor and industrial precision ensures that when you receive a quote from us, you are investing in a validated scientific instrument, not just a piece of hardware.
Cooperation with Chang'an University Highway College and Air Force Engineering University has led to ministerial and provincial awards.
Our machines are used world-wide by government agencies, commercial testing laboratories, and ready mix producers.
R&D has accomplished a series of leading domestic and international standards in asphalt, pavement, and geotechnical testing.
Our custom testers can be equipped with cylinders up to 300mm in diameter, allowing for testing of materials with a Dmax of up to 60mm, following the 1:5 ratio principle to avoid wall effect interference.
Yes. While coarse-grained soils typically require the constant head method due to high permeability, our digital control systems can be configured to perform both based on the specific hydraulic conductivity range of your sample.
Our automated units feature a built-in data acquisition system with a high-resolution touch screen. Data can be exported via USB or LAN in Excel/CSV formats for professional reporting.
Pricing varies based on the level of automation and cylinder size. Please contact our technical sales team with your specific ASTM/ISO requirements for a detailed quotation within 24 hours.
Zealchon Electronic
