PRIMIX HOMOGENIZING MIXER MARKⅡ Model 2.5 (3 L Capacity)

Overview

The PRIMIX HOMOGENIZING MIXER MARKⅡ Model 2.5 is a high-performance, benchtop high-shear dispersing and emulsifying system engineered for reproducible, scalable laboratory-scale processing of viscous and heterogeneous formulations. Operating on the principle of rotor-stator high-shear homogenization, it generates intense mechanical energy through controlled fluid acceleration, cavitation, and turbulent shear within a precisely engineered gap between the rotating impeller and stationary stator. This mechanism enables efficient droplet breakup in immiscible systems (e.g., oil-in-water or water-in-oil emulsions) and deagglomeration of solid particles in suspensions—critical for achieving narrow particle size distribution (PSD), enhanced stability, and improved functional performance in end products. Designed for routine QC testing, formulation development, and pre-pilot batch validation, the MARKⅡ integrates Japanese precision engineering with robust operational safety and intuitive manual control—making it a reference-standard instrument for R&D labs in pharmaceuticals, cosmetics, coatings, food science, and advanced materials research.

Key Features

• Brushless DC motor delivering stable rotational speed across the full 600–12,000 rpm range—including precise low-speed control (<1,000 rpm) essential for heat-sensitive or shear-thinning samples.
• Removable rotor-stator assembly fabricated entirely from SUS304 stainless steel, ensuring corrosion resistance, cleanability, and compliance with ISO 8573-1 (compressed air purity) and USP Class VI material compatibility expectations for non-sterile lab use.
• High-torque capability enabling homogeneous processing of viscoelastic fluids up to 70 Pa·s—supporting applications such as polymer dispersion, pigment grinding, and thickened emulsion stabilization without stalling or thermal runaway.
• Dedicated analog instrumentation: real-time current monitoring (ammeter) and cumulative runtime logging (hour meter) provide traceable operational diagnostics for GLP-aligned lab documentation and preventive maintenance scheduling.
• Integrated 15 A grounded converter and EMI-filtered power input ensure stable operation under variable grid conditions; meets IEC 61000-4-2/4-3 immunity standards for electromagnetic compatibility in shared lab environments.

Sample Compatibility & Compliance

The MARKⅡ accommodates sample volumes from 0.3 L to 3.0 L in standard cylindrical vessels (recommended Ø145 mm × 225 mm height), supporting both open-beaker and jacketed reactor configurations. It is validated for use with aqueous, organic, and semi-aqueous media—including surfactant-rich systems, nanoparticle colloids, and thermally sensitive biopolymers. While not certified for sterile or pressurized operation, its wetted-path construction adheres to ISO 13485-derived surface finish specifications (Ra ≤ 0.8 µm) and supports cleaning validation per ASTM E3085-17 (residue detection). The unit complies with JIS C 61000-3-2 (harmonic current emissions) and conforms to CE marking requirements under the EU Machinery Directive 2006/42/EC.

Software & Data Management

This model operates via analog, hardware-based controls—intentionally omitting digital interfaces to maximize reliability, minimize calibration drift, and reduce cybersecurity exposure in regulated environments. All operational parameters (speed setpoint, runtime, motor load) are directly observable and manually logged, facilitating audit-ready recordkeeping aligned with FDA 21 CFR Part 11 Annex 11 principles where handwritten logs are permitted under defined SOPs. For labs requiring electronic data capture, third-party USB data loggers compatible with analog ammeter outputs may be integrated without voiding warranty or compromising EMC integrity.

Applications

• Pharmaceutical: Preparation of nanoemulsions for oral delivery, active pharmaceutical ingredient (API) suspension stabilization, and excipient dispersion screening.
• Personal Care: Development of silicone-free conditioners, high-viscosity hair gels, and uniform pigment dispersions for color cosmetics.
• Materials Science: Exfoliation of 2D nanomaterials (e.g., graphene oxide), carbon black dispersion in elastomer masterbatches, and ceramic slurry homogenization.
• Food Technology: Emulsification of plant-based dairy alternatives, viscosity modification of starch-protein blends, and microbial culture media blending under low-shear initiation protocols.

FAQ

Is the rotor-stator head interchangeable with the HOMOGENIZING DISPER Model 2.5?
No—the MARKⅡ uses a proprietary rotor geometry and stator clearance optimized for emulsification efficiency; interchangeability is mechanically and hydraulically incompatible.
Can this unit process abrasive slurries containing >20% silica or alumina?
Yes, provided the rotor bearing (CAC502A) is inspected after every 50 hours of cumulative operation and replaced per manufacturer-recommended intervals to maintain radial runout tolerance (<0.02 mm).
Does the device support continuous flow mode or only batch processing?
It is designed exclusively for batch operation; continuous inline processing requires integration with PRIMIX’s industrial-scale HM series systems equipped with feed pumps and temperature-controlled jackets.
What is the expected service life of the brushless motor under daily 4-hour usage?
Based on accelerated lifetime testing per JIS C 5003, the motor exhibits ≥20,000 hours MTBF when operated within ambient temperatures of 15–30°C and relative humidity <70% RH.
Is technical support available in English for international users?
Yes—Primix Co., Ltd. provides multilingual application engineering support via authorized regional distributors, including English-language troubleshooting guides, torque calibration certificates, and ISO/IEC 17025-accredited verification reports upon request.