Jingcheng Huatai HTY-203 Depth-Controlled Soil Corer
| Brand | Jingcheng Huatai |
|---|---|
| Origin | Beijing, China |
| Model | HTY-203 |
| Sampling Depth | 10 m |
| Core Diameter | 5 cm |
| Core Length | 30 cm |
| Configuration | T-handle, 9 × 100 cm extension rods, 2 × 50 cm extension rods, depth-controlled peat coring bit, scraper, 2 wrenches, brush, 3 m steel tape measure, gloves, aluminum carrying case |
Overview
The Jingcheng Huatai HTY-203 Depth-Controlled Soil Corer is an engineered field instrument designed for stratified, depth-specific sampling in highly compressible, low-cohesion sediments—particularly peat, marsh soils, and water-saturated organic substrates where conventional push or percussion corers suffer from borehole collapse, core shortening, or cross-contamination between layers. It operates on a mechanical depth-locking principle: the coring bit features a rotating, spring-loaded sleeve that remains open during insertion to minimize disturbance, then closes at a pre-determined depth upon 180° handle rotation—sealing the target interval (e.g., 60–90 cm below surface) before extraction. This mechanism eliminates reliance on visual depth markings or operator estimation, delivering reproducible, undisturbed monoliths with minimal smearing or compaction artifacts. The device complies with standard field protocols for ecological soil profiling, wetland biogeochemical studies, and regulatory sediment monitoring under ISO 10381-2 (soil sampling—part 2: guidance on sampling techniques) and ASTM D1586 (standard test method for penetration resistance and classification of soils using the standard penetration test).
Key Features
- Mechanically actuated depth-selective closure: 180° handle rotation triggers instantaneous bit sealing at user-defined depth—no electronics, batteries, or calibration required.
- Stainless steel coring bit with hardened cutting edge and internal smooth-bore liner to preserve structural integrity of fragile organic matrices.
- Modular rod system: Includes nine 100 cm and two 50 cm anodized aluminum extension rods, enabling stable, vibration-damped insertion up to 10 m in saturated or semi-fluid substrates.
- T-handle ergonomics with non-slip grip and integrated torque indicator grooves for consistent rotational force application.
- Complete field-ready kit housed in a corrosion-resistant aluminum case: includes scraper, dual-size wrenches, cleaning brush, 3 m calibrated steel tape, and protective gloves—designed for rapid deployment and decontamination between sites.
Sample Compatibility & Compliance
The HTY-203 is validated for use in Class III–IV soils per USDA soil taxonomy (Histosols, Gleysols, and hydric mineral soils), including fibric and hemic peat, sapric muck, and intertidal mudflats. Its 5 cm diameter × 30 cm length core geometry aligns with ITRC (Interstate Technology & Regulatory Council) recommendations for wetland soil characterization and supports subsequent subsampling for bulk density, organic carbon, heavy metal, and microbial community analysis. All metallic components meet RoHS Directive 2011/65/EU restrictions on hazardous substances. The system supports GLP-compliant field documentation when paired with standardized chain-of-custody forms and depth-verified logging sheets.
Software & Data Management
As a manually operated, non-instrumented sampling tool, the HTY-203 does not incorporate embedded sensors or digital interfaces. However, it integrates seamlessly into structured environmental data workflows: depth settings are recorded directly onto field log sheets; core intervals are labeled using waterproof, UV-stable tags compliant with ASTM D5792 (standard practice for labeling soil and rock samples). When used with laboratory LIMS platforms (e.g., Thermo Fisher SampleManager, LabVantage), sample IDs generated from HTY-203 field logs can be mapped to analytical batches, ensuring full traceability from collection to reporting—fully auditable under ISO/IEC 17025:2017 clause 7.5.2 (traceability of sampling).
Applications
- Vertical profiling of redox gradients and porewater chemistry in freshwater and coastal wetlands.
- Carbon stock assessment in peatland restoration projects aligned with IPCC Wetlands Supplement reporting guidelines.
- Baseline sediment characterization prior to dredging or habitat remediation under EPA Region 10 or EU Water Framework Directive Annex V protocols.
- Archaeological soil stratigraphy recovery where layer integrity is critical for radiocarbon dating context.
- Calibration and ground-truthing of geophysical surveys (e.g., ground-penetrating radar, electrical resistivity tomography) in organic-rich terrain.
FAQ
Can the HTY-203 be used in frozen or gravelly soils?
No—it is specifically engineered for soft, cohesive, water-saturated media. Frozen ground, compacted clay, or soils with >15% gravel content (>2 mm) will impede clean insertion and compromise depth-locking functionality.
Is custom core length or diameter available?
Yes. Jingcheng Huatai offers OEM manufacturing for alternate dimensions—including 3 cm and 7 cm diameters, and core lengths from 15 cm to 50 cm—subject to minimum order quantities and lead-time confirmation.
How is cross-contamination prevented between sampling depths?
Each core is extracted as a sealed, discrete segment. Rods and bit are cleaned in situ using the provided brush and scraper; alcohol-rinsed tools and disposable gloves further mitigate transfer risk per USGS Techniques and Methods Book A, Chapter 10 (Field Procedures for Soil Sampling).
Does the system comply with FDA or CLIA requirements?
Not applicable—the HTY-203 is a field sampling device, not a clinical or diagnostic instrument. It adheres to environmental field standards only (ISO, ASTM, EPA, and ITRC).
What maintenance is required between uses?
Rinse all metal components with deionized water after field use; dry thoroughly and apply light mineral oil to threaded joints. Inspect O-rings and sleeve springs annually for fatigue or deformation—replacement parts are available under part number HTY-203-MK2-SPARE.
