Explore our primary line of advanced civil engineering, bitumen, and soil testing laboratory apparatus designed for global standards.

With more than 15 years of civil engineering background, located in the new technology industry development zone in Xi'an, an ancient city in China. It covers an area of 7,500 square meters of high-tech building space.
We manufacture and supply testing instruments for civil engineering, geological survey, water conservancy, hydropower, roads, bridges, highways, railways, and airports. We specialize in the production and sales of geotechnical testing instruments, asphalt and asphalt mixture testing instruments, cement and concrete testing instruments.
Zealchon is engaged in manufacturing and supplying a qualitative array of research and laboratory testing equipment. We specialize in civil engineering research and experimental apparatus, alongside advanced semiconductor laser research and development.
Bridging geotechnical compliance, optimal moisture content parameters, and rigorous manufacturing precision for global infrastructure.
The Standard Proctor Density Test (ASTM D698 / AASHTO T 99) is critical for determining the relationship between the moisture content and dry unit weight of compacted soils. Our mechanical compaction apparatus ensures exact energy application (typically 12,375 ft-lbf/ft³) across standardized mold geometries.
Leveraging advanced CNC machining, precision grinding, and automated dynamic calibration stands, Zealchon ensures micron-level accuracy in rammer weight, drop height, and mold dimensions, eliminating experimental variance in professional geotechnical laboratories.
Our testing apparatus complies with international benchmarks including ASTM, AASHTO, BS 1377, and ISO protocols, guaranteeing that civil engineers worldwide achieve repeatable, defensible soil compaction metrics for highways and dams.
How world-class manufacturing infrastructure drives efficiency and localized adaptability for global highway and foundation projects.
Operating out of China's high-tech hub in Xi'an gives Zealchon direct access to an integrated metallurgical and electronic supply chain. From raw alloy sourcing to CNC assembly, our in-house production workshops—equipped with high-precision milling machines, grinders, and argon arc welders—ensure short lead times, stringent quality control, and highly competitive OEM pricing without compromising structural durability.
Standard Proctor and modified compaction test kits are heavily deployed in diverse regional environments—ranging from arid highway subgrade stabilization to high-moisture railway embankment engineering. Our equipment empowers geotechnicians to evaluate maximum dry density (MDD) and optimum moisture content (OMC) accurately under rigorous field conditions.
Rooted in deep academic partnerships and validated by provincial and national accolades.
The production workshop features cutting-edge production equipment such as machining centers, CNC lathes, milling machines, planers, grinders, shearing machines, bending machines, electric welders, and argon arc welders.
Our technical support, marketing, and web development teams are dedicated to providing comprehensive customer support and engineering services.
The company keeps pace with national, ministerial, and industry testing standards, maintaining an airtight production and sales service mechanism deeply trusted by user units worldwide.
We adhere to the corporate spirit of "people-oriented, unity, pursuit of excellence," ensuring quality first, honesty, and treating customer needs as our primary working goal.
Providing technology-based professional solutions, high-quality products, three guarantees for all products sold, and embodying true craftsman spirit in every instrument.
Expert insights into Standard Proctor Density testing equipment procurement, calibration, and technical specifications.
The Standard Proctor test applies lower compaction energy (12,375 ft-lbf/ft³) typically used for lighter traffic or standard residential foundations, whereas the Modified Proctor test (ASTM D1557) applies higher energy (56,250 ft-lbf/ft³) designed for heavy highway loading and airfield runways.
Yes. As a direct manufacturer with advanced CNC machining capabilities, we provide comprehensive OEM/ODM customization services tailored to specific international standards (ASTM, AASHTO, BS, EN) and unique client branding requirements.
All testing machines undergo rigorous pre-shipment inspection and calibration testing. We provide detailed calibration certificates, user manuals, and technical video guides, supported by our 15+ years of engineering expertise.
We utilize export-grade moisture-proof wooden crating with shock-absorbing foam inserts, ensuring that fragile glass components, electronic sensors, and heavy steel compaction molds arrive worldwide in pristine, ready-to-calibrate condition.
Discover our wider portfolio of aggregate, bitumen, and soil mechanics testing instruments.