TN Testing TNM-AX6 Fully Automatic Hydraulic Multi-Cavity Hot Mounting Press

Overview

The TN Testing TNM-AX6 is a fully automatic, hydraulic-driven, multi-cavity hot mounting press engineered for high-throughput metallographic sample preparation in quality control laboratories, failure analysis centers, and R&D facilities. It operates on the principle of thermosetting resin compression molding under controlled temperature and pressure—leveraging precise thermal management and consistent hydraulic force to minimize void formation, edge recession, and interfacial delamination between specimen and mounting medium. Unlike conventional single-cavity presses requiring sequential operation, the TNM-AX6 integrates six independent mold cavities within a single heated platen assembly, enabling parallel processing of up to six specimens per cycle—typically completed within 15 minutes. Its design prioritizes reproducibility across shifts and operators, eliminating manual intervention during critical phases (e.g., pressure ramping, dwell timing, cooling initiation), thereby reducing operator-induced variability in microstructural integrity assessment.

Key Features

• Fully automated 6-cavity hot mounting cycle with programmable temperature (110–200 °C), molding time, and cooling duration—no manual pressure adjustment required.
• Hydraulic pressure system delivering stable 130 kgf/cm² operating force and peak 114 kgf/cm² (1625 psi) cavity pressure, ensuring uniform resin flow and minimal shrinkage-induced edge pullback.
• Pre-heating function maintains all six mold positions at setpoint temperature during idle periods—reducing thermal lag and improving cycle-to-cycle consistency in continuous production.
• Rotary downward-fill mechanism simplifies resin loading: specimens and thermosetting resin (e.g., phenolic, epoxy, or acrylic) are placed into mold tubes; patented top mold alignment ensures repeatable seating and eliminates misalignment-related flash or incomplete fill.
• Integrated safety architecture includes dual-stage thermal cutoff (prevents operation below safe start temperature and halts heating above max threshold), emergency stop button, mechanical overload protection, and lid-interlocked actuation.
• Intuitive touchscreen interface with preloaded mounting protocols (e.g., “Standard Phenolic”, “Fast-Cure Epoxy”, “Low-Shrink Acrylic”) reduces training time and minimizes input errors—ideal for labs with rotating technical staff or GLP-compliant environments requiring audit-ready operation logs.

Sample Compatibility & Compliance

The TNM-AX6 accommodates standard Ø32 mm metallographic molds and supports specimens up to 30 mm in height—compatible with ferrous/non-ferrous metals, ceramics, composites, and coated substrates. Its consistent thermal profile and pressure delivery meet foundational requirements for ASTM E3, ISO 15510, and JIS Z 2241 specimen preparation standards. While the unit itself does not carry CE or UL certification out-of-box, its electrical architecture (3-phase 220/380 V, 50/60 Hz) and safety subsystems align with IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emissions) frameworks. When operated with validated resin systems and documented SOPs, data generated from TNM-AX6-mounted samples support traceability in ISO/IEC 17025-accredited testing laboratories.

Software & Data Management

The TNM-AX6 features embedded firmware—not cloud-connected software—with non-volatile memory storing up to 99 user-defined cycles. Each cycle records timestamp, setpoints (temperature, time, pressure status), and operational flags (e.g., “cooling initiated”, “emergency stop triggered”). Cycle history is exportable via USB port as CSV files for integration into LIMS or internal QA databases. Though not FDA 21 CFR Part 11 compliant by default, the system supports ALCOA+ principles when paired with procedural controls: unique operator login (via optional RFID reader upgrade), electronic signature prompts for critical parameter changes, and immutable audit trails when used with external logging servers.

Applications

• Routine QC metallography in foundries, forging plants, and heat treatment facilities where >50 specimens/day require edge-retentive mounting for grain size, inclusion rating, or decarburization depth analysis.
• Failure analysis labs preparing cross-sections of solder joints, brazed interfaces, or additive-manufactured parts—where preservation of fragile boundaries and thermal-affected zones is essential.
• Academic and industrial research groups performing comparative studies of resin shrinkage behavior, interfacial adhesion strength, or thermal stress modeling in mounted composites.
• Third-party testing labs serving automotive or aerospace clients requiring ISO 17025-aligned documentation of specimen preparation conditions for hardness, micro-indentation, or SEM-EDS workflows.

FAQ

What resin types are compatible with the TNM-AX6?
Phenolic, epoxy, and acrylic thermosetting resins—both standard and low-shrink formulations—are supported. Resin viscosity and cure kinetics must align with the machine’s 15-minute cycle window and 110–200 °C operating envelope.
Does the TNM-AX6 support cold mounting?
No. This is a dedicated hot-mounting system. Cold mounting requires separate vacuum-impregnation equipment.
Can the machine be integrated into an automated lab workflow?
Yes—via dry-contact I/O signals (start/stop/status) and USB data export. PLC-level integration requires optional relay module (part no. TNM-I/O-KIT).
Is water cooling mandatory?
Yes. Continuous flow cooling (minimum 1.5 L/min at 15–25 °C inlet) is required for thermal stabilization during back-to-back cycles. The unit includes integrated flow sensors that halt operation if flow falls below threshold.
How often does the hydraulic oil require replacement?
Under continuous multi-shift operation, hydraulic fluid inspection is recommended every 1,000 hours; replacement interval is 3,000 hours or biannually—whichever occurs first—using ISO VG 46 anti-wear hydraulic oil.