RTTC-10 LANYO Electric Soil Core Sampler

Overview

The RTTC-10 LANYO Electric Soil Core Sampler is a field-portable, battery-powered percussion-type soil coring device engineered for high-fidelity, minimally disturbed collection of intact soil cores up to 2 meters in depth. Unlike auger- or push-based samplers, the RTTC-10 employs controlled impact energy transfer—via an integrated electric hammer mechanism—to drive a split-spoon or solid-barrel core barrel vertically into undisturbed ground. This percussion principle ensures consistent penetration force across variable soil strata (including clay, silt, loam, and moderately compacted sand), significantly reducing sample deformation, smearing, or layer mixing during retrieval. Its modular design supports interchangeable core barrels (standard 50 mm OD, customizable lengths), enabling stratified sampling at user-defined depths without full extraction and reinsertion. The system meets fundamental requirements for representative sampling under ISO 10381-2 (soil sampling—part 2: guidance on sampling techniques) and aligns with ASTM D1586 (standard test method for penetration resistance and classification of soils using the standard penetration test) for field-based geotechnical correlation.

Key Features

• Battery-operated electric percussion drive eliminates dependency on external power sources or gasoline generators—ideal for remote, off-grid, or ecologically sensitive sites.
• Compact, single-operator configuration: total system weight ≤6 kg (core unit only); ergonomic handle geometry and balanced center-of-mass support extended use over uneven terrain.
• Precision depth control: calibrated depth markings on the core rod and optional digital depth encoder (accessory) allow repeatable sampling at discrete horizons (e.g., 0–20 cm, 40–60 cm, 100–120 cm).
• Integrated liner tube compatibility: removable polyethylene or stainless-steel liners maintain structural integrity of cohesive, high-plasticity soils (e.g., Vertisols, heavy clays) during extraction and transport.
• Tool-free barrel exchange: quick-release coupling enables rapid switching between split-spoon (for SPT-style refusal testing) and solid-barrel (for undisturbed core recovery) configurations.
• Ruggedized aluminum alloy housing with IP54-rated electronics enclosure ensures operational reliability in dust, light rain, and temperature ranges from –10 °C to +45 °C.

Sample Compatibility & Compliance

The RTTC-10 is validated for use in mineral soils with moisture content ≤35% and unconfined compressive strength ≤200 kPa. It accommodates standard 50 mm diameter core barrels (ISO 22177-compliant dimensions) and supports optional 35 mm and 75 mm variants upon request. Liner-equipped operation complies with EPA Method SW-846 5035A (soil and waste sampling for volatile organic analysis) when paired with certified low-diffusion liners and proper field blank protocols. All mechanical components conform to RoHS Directive 2011/65/EU. While not a laboratory-certified analytical instrument, its sampling output is traceable to GLP-aligned field documentation workflows—including electronic logbook integration via optional Bluetooth module.

Software & Data Management

The RTTC-10 operates as a standalone hardware platform; no embedded firmware or proprietary software is required for basic function. However, optional accessories include a Bluetooth-enabled depth-and-impact counter module (model RTTC-DATA-1) that logs timestamped penetration events, cumulative stroke count, and estimated resistance index to CSV files compatible with QGIS, ArcGIS, and common LIMS platforms. Data export supports audit-trail-ready formats compliant with ISO/IEC 17025 documentation requirements. No cloud connectivity or vendor-hosted infrastructure is involved—data remains fully under user control at all times.

Applications

• Environmental site assessment: vertical profiling of contaminant plumes (e.g., PAHs, heavy metals, PFAS) in vadose and saturated zones.
• Agricultural soil health monitoring: collection of intact cores for bulk density, porosity, aggregate stability, and microbial biomass assays.
• Geotechnical reconnaissance: rapid SPT-equivalent resistance estimation prior to borehole drilling campaigns.
• Archaeological stratigraphy: non-invasive horizon-specific sampling for radiocarbon dating, pollen analysis, and artifact context mapping.
• Climatic soil carbon studies: standardized 1-m² grid sampling per IPCC Tier 2 protocols for SOC stock quantification.

FAQ

What soil types are suitable for RTTC-10 sampling?

The sampler performs optimally in non-gravelly, non-bouldery soils with grain sizes ≤2 mm and plasticity index <35. Gravel-rich or cemented layers require pre-augering or alternative methods.
Can the RTTC-10 be used in frozen ground?

No—sampling is not recommended below 0 °C due to reduced lithium battery output and increased risk of core fracture or barrel jamming.
Is calibration required before each use?

No formal calibration is mandated; however, daily functional verification (hammer actuation, depth scale alignment, liner seating) is advised per internal QA procedures.
Does the system meet FDA or CLIA requirements?

It is not a clinical diagnostic device and does not fall under FDA 21 CFR Part 11 or CLIA jurisdiction; it is intended solely for environmental, agricultural, and geological field sampling.
What maintenance intervals are recommended?

Battery health check every 6 months; O-ring replacement and impact mechanism lubrication annually or after 200 sampling cycles—per included maintenance log sheet.