Mitqi MC-1 Electrically Actuated Mini Isostatic Pellet Press with Manual Die Set for Fluorescence Sample Preparation

Overview

The Mitqi MC-1 is a compact, electrically actuated semi-automatic pellet press engineered for reproducible, low-to-medium force consolidation of powdered samples into uniform, binder-free pellets—primarily intended for X-ray fluorescence (XRF), Fourier-transform infrared (FTIR), and near-infrared (NIR) spectroscopic analysis. Unlike fully manual hydraulic presses, the MC-1 integrates an integrated electric motor-driven hydraulic pump that delivers controlled, repeatable pressure application (typically in the range of 1–15 tons, depending on die geometry and sample compressibility), while retaining full operator control over die insertion, alignment, and ejection. Its design follows fundamental principles of cold isostatic pressing (CIP), where pressure is transmitted uniformly through an incompressible fluid medium (e.g., oil) to the powder-filled die cavity, minimizing density gradients and edge effects common in uniaxial mechanical presses. The system operates at ambient temperature and does not require vacuum or heating, making it suitable for thermolabile, hygroscopic, or air-sensitive materials when used in conjunction with glovebox-compatible dies.

Key Features

• Compact benchtop footprint (≤300 × 250 × 400 mm) optimized for space-constrained analytical labs and QA/QC environments
• Electric motor-hydraulic actuation system providing smooth, stepless pressure ramping and hold capability—eliminating hand-pump fatigue and improving inter-operator consistency
• Interchangeable stainless-steel die sets (standard 13 mm, 20 mm, and 32 mm diameters; custom sizes available upon request) compatible with standard spectroscopic pellet specifications (e.g., ASTM E1361, ISO 20057)
• Mechanically robust frame with precision-ground platens and self-aligning die guide sleeves to ensure parallelism within ±0.02 mm across full stroke
• Integrated pressure gauge (0–20 MPa analog or digital option) with calibrated scale traceable to national metrology standards
• No external hydraulic power unit required—fully self-contained operation with low-noise brushless DC motor and sealed reservoir

Sample Compatibility & Compliance

The MC-1 accommodates a broad spectrum of inorganic and organic powders—including metal oxides, geological matrices, pharmaceutical excipients, polymer blends, and catalyst precursors—provided particle size distribution falls within typical spectroscopic pelletization ranges (D90 < 45 µm recommended). It supports both single-layer and multi-layer pellet fabrication using spacer shims. All wetted components comply with ISO 8502-3 for residual chloride limits and are passivated per ASTM A967. While the press itself is not certified to UL/CE for standalone electrical safety, it meets IEC 61010-1 requirements for laboratory electrical equipment when operated within specified ambient conditions (15–30 °C, <80% RH non-condensing). Documentation packages include factory calibration certificates, material declarations (RoHS 2011/65/EU), and conformity statements aligned with China’s CCC exemption policy for laboratory R&D instrumentation.

Software & Data Management

The base MC-1 operates without embedded firmware or software; however, optional digital pressure controllers (e.g., Mitqi DPC-2000 module) provide RS-485/Modbus RTU output for integration into LIMS or SCADA systems. When paired with third-party data acquisition hardware, pressure vs. time profiles can be logged and exported in CSV format for GLP-compliant audit trails. All manual operation records—including date, operator ID, sample ID, die size, applied pressure, dwell time, and final pellet thickness—are documented in accordance with internal SOPs referencing ISO/IEC 17025:2017 Clause 7.5.3 (Control of Records). Traceability is maintained via serialized die sets and stamped logbooks provided with each unit.

Applications

• Routine preparation of pressed pellets for wavelength-dispersive (WDXRF) and energy-dispersive (EDXRF) elemental analysis
• Standardless quantification workflows requiring high-density, low-porosity reference disks
• Method development for ASTM D7348 (determination of sulfur in petroleum products by XRF)
• QC release testing of raw materials in cement, mining, and metallurgical industries
• Research-scale densification studies for battery cathode precursor powders (e.g., NMC, LFP) prior to sintering
• Preparation of KBr or polyethylene matrix pellets for FTIR transmission analysis

FAQ

What is the maximum rated pressure output of the MC-1?
The hydraulic system is rated for continuous operation up to 15 metric tons (≈147 kN) of axial force, corresponding to ~115 MPa nominal stress for a 13 mm diameter die cavity.
Is the press compatible with inert-atmosphere pelletization?
Yes—die sets can be loaded inside argon- or nitrogen-filled gloveboxes; the press body itself requires no atmosphere control during operation.
Does the MC-1 support automated pressure cycling or programmable dwell sequences?
Not in the base configuration; such functionality requires integration with the optional DPC-2000 digital controller and external PLC.
What maintenance is required for long-term reliability?
Biannual inspection of hydraulic oil level and seal integrity; replacement of hydraulic fluid every 24 months or after 500 operating cycles, whichever occurs first.
Can custom die geometries (e.g., toroidal, multi-cavity) be fabricated?
Yes—Mitqi offers OEM die design and machining services under NDA, with lead times typically 4–6 weeks from drawing approval.