AZZOTA BHY-205002 13 mm FTIR Pellet Die Set for KBr Spectroscopy

Overview

The AZZOTA BHY-205002 is a precision-engineered 13 mm FTIR pellet die set designed for reproducible, high-integrity sample preparation in Fourier Transform Infrared (FTIR) spectroscopy. It operates on the principle of uniaxial cold compression under controlled mechanical load—typically applied via hydraulic or manual laboratory presses—to consolidate fine particulate samples (e.g., KBr, NaCl, CsI) into optically homogeneous, transparent discs suitable for transmission-mode IR analysis. This die set complies with standardized sample preparation protocols defined in ASTM E1252–98 (Standard Practice for General Techniques for Qualitative Infrared Analysis) and USP (Infrared Absorption Spectrophotometry), ensuring spectral fidelity, minimal scattering artifacts, and inter-laboratory comparability. Its robust stainless-steel construction eliminates corrosion from halide salts and resists galling during repeated high-load cycles, supporting long-term dimensional stability critical for quantitative repeatability.

Key Features

• Optimized 13 mm inner diameter—industry-standard size for compatibility with most commercial FTIR spectrometers’ sample compartments and beam path geometries
• Rated for sustained mechanical loads up to 12 tons (117.6 kN), enabling full densification of refractory or low-compressibility matrices without die deformation
• Mirror-polished die sleeve and dual anvil surfaces minimize surface roughness (Ra < 0.05 µm), reducing light scattering and improving transmittance across 4000–400 cm⁻¹
• Integrated vacuum port on base assembly facilitates in-die evacuation prior to pressing—critical for eliminating air entrapment in hygroscopic KBr pellets and suppressing residual H₂O vapor bands near 1640 cm⁻¹ and 3400 cm⁻¹
• Modular design allows individual replacement of all components—including O-rings, anvils, and ejection tools—supporting GLP-aligned maintenance logs and traceable component lifecycles
• Zero tolerance shift between plunger and sleeve ensures concentric loading, preventing edge chipping and thickness variation across pellet cross-sections

Sample Compatibility & Compliance

The BHY-205002 accommodates a broad range of infrared-transparent matrix materials including potassium bromide (KBr), sodium chloride (NaCl), cesium iodide (CsI), and polyethylene (PE) for ATR support. It is routinely validated for pharmaceutical raw material identification (per ICH Q5C), polymer additive screening (ASTM D3350), and forensic trace evidence analysis (SWGMAT guidelines). All wetted surfaces meet USP Class VI biocompatibility requirements, and the absence of threaded interfaces or crevices supports ISO 14644-1 Class 5 cleanroom handling when used in regulated QC environments. Documentation packages include material certifications (EN 10204 3.1), dimensional inspection reports, and vacuum integrity test records upon request.

Software & Data Management

While the BHY-205002 is a passive mechanical tool and requires no embedded firmware or driver software, its use is fully integrated into digital lab workflows via companion documentation templates aligned with 21 CFR Part 11 compliance. Optional electronic batch records (EBR) can be generated using LIMS platforms such as LabWare LIMS or Thermo Fisher SampleManager, capturing press serial number, operator ID, vacuum dwell time, applied load (via calibrated pressure transducer), and final pellet thickness (measured with Mitutoyo IP67-certified micrometers). Audit trails are preserved for GMP audits, and calibration certificates for associated measurement devices are automatically linked within the system.

Applications

• Routine QC release testing of active pharmaceutical ingredients (APIs) and excipients using pharmacopeial KBr pellet methods (USP , EP 2.2.24)
• Quantitative analysis of crystallinity in polymorphic drug substances via peak ratio calibration against NIST-traceable reference standards
• Forensic fiber and paint chip identification through spectral library matching (ASTM E2926–22)
• Environmental microplastic characterization in filtered water samples, where pellet uniformity directly impacts detection limits for carbonyl stretch region quantitation
• Academic research in solid-state chemistry, particularly for in situ monitoring of mechanochemical reactions under inert atmosphere glovebox integration

FAQ

Is the BHY-205002 compatible with hydraulic presses rated above 12 tons?
Yes—its 12-ton rating indicates maximum recommended working load; it may be used at higher forces only if the press’s load cell and frame rigidity are independently verified to avoid plastic deformation of the die body.
Can this die set be sterilized for biological sample preparation?
Autoclaving is not recommended due to thermal expansion mismatch between stainless steel components and elastomeric seals; dry heat (160°C, 2 h) is acceptable for O-ring-free configurations.
What vacuum level is required for optimal KBr pellet formation?
A minimum of 50 mTorr (6.7 Pa) held for ≥60 seconds prior to loading ensures consistent removal of adsorbed moisture without inducing salt deliquescence.
Are custom inner diameters available beyond the standard 13 mm?
Yes—AZZOTA offers OEM manufacturing for 7 mm, 25 mm, and 32 mm variants with identical metallurgical specifications and vacuum interface geometry.
Does the die require recalibration after extended use?
No—dimensional stability is maintained per EN ISO 2768-mK tolerances; however, annual verification of anvil parallelism (≤0.5 µm deviation over 13 mm span) using optical flat interferometry is advised for GMP applications.