BROT-LAB Model 1.22.10 Vertical Core Drilling Machine

Overview

The BROT-LAB Model 1.22.10 Vertical Core Drilling Machine is a precision-engineered laboratory instrument designed specifically for non-destructive coring and sampling of intact cylindrical rock cores up to 1 meter in length. Built upon a robust cast-iron frame with vibration-damped base construction, this machine operates on the principle of controlled rotary mechanical cutting using diamond-impregnated or tungsten-carbide core bits. Its vertical orientation ensures axial alignment stability during drilling—critical for preserving structural integrity and minimizing lateral stress-induced fracturing in heterogeneous or low-cohesion geological specimens. The system integrates real-time thermal management via dual-path coolant delivery (internal bit flushing + external surface cooling), enabling consistent cutting performance across variable lithologies including sandstone, shale, limestone, basalt, and consolidated sediments.

Key Features

• Twelve-step infinitely variable spindle speed control (150–2,840 rpm) achieved through belt-pulley configuration, optimized for matching rotational energy to rock hardness and bit geometry.
• Adjustable worktable with ±45° tilt capability in both height and angular orientation—facilitating oblique-angle coring for anisotropic property analysis (e.g., bedding-plane permeability testing).
• Dual-mode coolant delivery system compatible with water or oil-based fluids; integrated internal channeling cools drill bit flutes while external spray suppresses dust and dissipates interfacial heat at the bit-rock interface.
• Emergency stop button compliant with IEC 60204-1 safety standards, housed within easy reach and electrically interlocked with spindle and pump motors.
• Acoustically insulated housing maintains operational noise below 70 dB(A) at 1 m distance—meeting ISO 7779 and EU Machinery Directive 2006/42/EC requirements for laboratory environments.
• Modular accessory support for optional upgrades: closed-loop sediment-recycling water circulation unit and cryogenic LN₂-compatible drilling module for sub-zero temperature core acquisition (e.g., permafrost or ice-core studies).

Sample Compatibility & Compliance

The Model 1.22.10 accommodates full-diameter rock cores ranging from 60 cm to 100 cm in length and 25.4 mm to 101.6 mm in diameter (1″–4″). It supports standardized core preparation protocols aligned with ASTM D2937 (Standard Test Method for Density of Soil in Place by the Drive-Cylinder Method), ISO 14688-1 (Geotechnical investigation and testing — Identification and classification of soil — Part 1), and USGS Open-File Report methodologies for geological sample archiving. All mechanical interfaces conform to EN ISO 12100:2010 (Safety of machinery — General principles for design) and are CE-marked under the EU Machinery Directive. Optional LN₂ integration meets ASTM D5308 (Standard Practice for Cryogenic Preservation of Soil Samples).

Software & Data Management

While the Model 1.22.10 operates as a manually controlled mechanical system, its modular architecture allows integration with third-party digital logging platforms via analog voltage output (0–10 V) for spindle RPM and coolant flow rate monitoring. When paired with optional sensor kits (e.g., torque transducer, acoustic emission probe), data streams may be recorded into LIMS-compliant databases supporting 21 CFR Part 11 audit trails. BROT-LAB provides calibration documentation traceable to COFRAC-accredited national standards, including motor speed verification reports and coolant flow linearity certificates.

Applications

• Preparation of cylindrical subsamples for triaxial compression, uniaxial compressive strength (UCS), and Brazilian tensile testing per ASTM D7012 and ISO 14688.
• Extraction of oriented cores for microstructural analysis (SEM-EDS, XRD, CT scanning) where preservation of stratigraphic continuity is essential.
• Generation of plug samples for porosity-permeability correlation studies in reservoir characterization workflows.
• Coring of frozen or partially saturated specimens under controlled thermal conditions when equipped with the LN₂ module.
• Method development for unconventional resource evaluation—including shale gas matrix sampling and coalbed methane core handling.

FAQ

Is the machine suitable for drilling soft sediments or unconsolidated materials?
Yes—the low-speed range (150–500 rpm) combined with adjustable feed pressure enables stable coring of clay-rich, silty, or loosely cemented formations without slurry extrusion or core distortion.
Can custom bit diameters below 1 inch be supplied?
Yes—BROT-LAB offers bespoke core bit manufacturing down to Ø6 mm (0.25″) upon request, with full dimensional certification and material compliance reporting (ISO 5832-1 for medical-grade stainless steel variants).
What maintenance intervals are recommended for the spindle motor and coolant pump?
Spindle motor bearings require relubrication every 2,000 operating hours; the 150 W recirculation pump should undergo filter replacement and seal inspection biannually or after 500 core operations, whichever occurs first.
Does the system comply with GLP or GMP documentation requirements?
All delivered units include Factory Acceptance Test (FAT) documentation, IQ/OQ templates, and calibration records meeting ISO/IEC 17025:2017 and EU Annex 11 expectations for regulated laboratories engaged in geological QA/QC programs.