OFITE 127-40 Core Drilling Machine

Overview

The OFITE 127-40 Core Drilling Machine is a precision-engineered, floor-standing laboratory instrument designed for the controlled extraction of cylindrical core samples from consolidated rock specimens, sedimentary cores, concrete blocks, and other quasi-homogeneous geological or construction materials. It operates on the principle of rotary mechanical drilling using diamond-impregnated or tungsten-carbide-tipped core bits, delivering consistent, low-vibration sample acquisition under continuous water cooling. This system ensures minimal thermal damage and micro-fracturing during coring—critical for preserving structural integrity in petrophysical analysis, porosity-permeability testing, and core plug preparation for reservoir characterization. Engineered to meet the operational demands of core laboratories supporting upstream oil & gas, geotechnical engineering, and academic earth sciences, the 127-40 provides repeatable core geometry (diameter tolerance ±0.05 mm) and axial alignment accuracy within 0.1° over full stroke depth.

Key Features

• Floor-standing rigid steel frame with vibration-dampening base plate for stable operation during high-torque drilling cycles
• Integrated water-cooling circuit featuring a rotating swivel coupling with integrated shut-off valve, enabling uninterrupted coolant delivery directly to the bit–rock interface without hose twisting or leakage
• Adjustable vertical feed mechanism with calibrated depth scale (0–150 mm range) and fine-thread lead screw for precise penetration control
• Standard 1.0″ (25.4 mm) diameter × 6″ (152.4 mm) length core bit included; optional bit diameters (0.5″, 0.75″, 1.5″) available as certified OFITE accessories (P/Ns 127-40-002-1 through 127-40-004-1)
• Full-coverage splash guard assembly compliant with OSHA 1910.212 machine guarding standards
• Drain pan with integrated slope and outlet port for gravity-fed coolant recovery; compatible with external recirculation systems
• 6″ (152 mm) capacity adjustable clamp with hardened jaws and micrometer-scale positioning scale for secure specimen immobilization
• Electrical compliance with IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emission); CE-marked per Machinery Directive 2006/42/EC

Sample Compatibility & Compliance

The 127-40 accommodates cylindrical or rectangular rock specimens up to 305 mm in height and 254 mm in width, including unconfined compressive strength (UCS) test blocks, drill core segments, and synthetic analogs (e.g., Berea sandstone plugs, limestone slabs). Its mechanical design conforms to ASTM D2938 (Standard Test Method for Direct Tensile Strength of Intact Rock Core Specimens), ASTM D4543 (Preparing Rock Core Specimens for Testing), and ISO 14689-1 (Geotechnical Investigation and Testing — Identification and Classification of Rock). All structural components are fabricated from corrosion-resistant steel alloys, and optional accessories—including the acid-resistant polypropylene water trough (P/N 127-40-005) and stainless-steel core tray (P/N 127-40-006)—support GLP-compliant sample handling workflows in regulated environments.

Software & Data Management

As a manually operated mechanical system, the 127-40 does not incorporate embedded firmware or digital control interfaces. However, its operational parameters—including feed rate, total penetration depth, bit type, specimen ID, and coolant flow verification—are fully documentable within laboratory information management systems (LIMS) or electronic lab notebooks (ELN) compliant with 21 CFR Part 11 requirements. OFITE provides a standardized Core Drilling Log Template (Rev. 3.1) aligned with API RP 9B and ISO/IEC 17025 documentation practices, facilitating audit-ready traceability for QA/QC reporting and regulatory submissions.

Applications

• Preparation of core plugs for routine petrophysical measurements (porosity, permeability, resistivity)
• Sectioning of whole-core samples for thin-section analysis, XRD/XRF sampling, and SEM-EDS mapping
• Manufacture of standardized specimens for triaxial compression, Brazilian tensile, and point-load strength testing
• Core recovery validation in field-derived sediment cores prior to storage or transport
• Material science studies involving cementitious composites, asphalt binders, and ceramic matrix composites

FAQ

What voltage and frequency does the 127-40 require?
The unit operates on single-phase 220 V AC at 50/60 Hz; no voltage conversion is required for use in EU, APAC, or Middle Eastern markets with compatible supply infrastructure.
Is the 127-40 compatible with diamond-impregnated bits?
Yes—OFITE certifies compatibility with industry-standard diamond-core bits meeting ANSI B74.17 and ISO 5272 specifications, provided bit shank geometry matches the 127-40’s collet interface (1-1/8″–7 UNC thread).
Can the machine be integrated into an automated core logging line?
While the 127-40 itself is manually actuated, its footprint, mounting holes, and coolant interface are designed for integration into semi-automated workflows using third-party PLC-controlled positioning stages and barcode-scanned specimen tracking.
Does OFITE provide calibration certificates for the depth scale or clamping force?
Depth scale calibration is performed per NIST-traceable gauge blocks prior to shipment; clamping force is verified via torque wrench calibration (ISO 6789-2) and documented in the Certificate of Conformance shipped with each unit.