OFITE L5M-A High-Shear Laboratory Homogenizer

Overview

The OFITE L5M-A High-Shear Laboratory Homogenizer is an engineered solution for precision fluid processing in research laboratories, quality assurance environments, and pilot-scale manufacturing. Based on the proven rotor-stator principle of high-shear mixing—where mechanical energy is transferred via rapid rotation of a precision-machined rotor within a fixed stator—the L5M-A generates intense localized shear gradients, cavitation, and turbulent flow to achieve efficient emulsification, homogenization, particle size reduction, dispersion, and dissolution. Unlike low-shear impeller mixers, this system delivers reproducible microstructural outcomes critical for formulation development, stability testing, and process scale-up. Its design adheres to fundamental rheological and fluid dynamic principles, enabling direct correlation between lab-scale results and full-scale production performance—particularly valuable in pharmaceutical, cosmetic, food, and materials science applications where batch consistency and regulatory traceability are mandatory.

Key Features

• 1 HP brushless motor delivering consistent torque across the full speed range (0–10,000 rpm), engineered for thermal stability during extended operation
• Continuously variable electronic speed control with intuitive touchscreen interface—eliminates mechanical potentiometers and reduces contamination risk during sterile or GMP-aligned workflows
• Digital tachometer with ±1% accuracy and real-time current monitoring, supporting load-based process verification and motor health assessment
• Programmable integral timer with memory retention, configurable for single-step or multi-phase protocols (e.g., pre-wet, high-shear, cooldown phases)
• Rotor-stator assemblies available in multiple geometries (e.g., standard, fine-gap, high-flow) to optimize shear intensity for viscosity ranges from 50,000 mPa·s
• Compact footprint (94 × 31 × 51 cm) and 25 kg mass ensure benchtop stability without requiring anchoring, while facilitating integration into fume hoods or ISO Class 5/7 cleanrooms

Sample Compatibility & Compliance

The L5M-A accommodates sample volumes from 1 mL (using micro-geometry probes) to 12 L (with large-batch vessels), supporting both batch and recirculation modes at up to 20 L/min flow rate. It is compatible with aqueous, organic, and semi-solid systems—including suspensions, o/w and w/o emulsions, polymer solutions, nanoparticle dispersions, and thermosensitive biologics—provided appropriate probe material selection (e.g., 316L stainless steel, PTFE-coated options) and temperature management protocols are applied. The instrument meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage safety (LVD Directive 2014/35/EU). While not intrinsically rated for hazardous locations, its sealed motor housing and IP54-rated control panel support use in controlled industrial labs compliant with ISO/IEC 17025 and cGMP Annex 11 documentation practices.

Software & Data Management

The integrated touchscreen controller logs timestamped operational parameters—including speed setpoint, actual rpm, elapsed time, and motor current—at user-defined intervals (1–60 sec). All data are exportable via USB to CSV format for integration into LIMS or ELN platforms. Audit trail functionality records operator ID (via optional RFID badge reader), parameter changes, and system events—supporting compliance with FDA 21 CFR Part 11 when deployed with validated electronic signature workflows. No proprietary software installation is required; raw logs are human-readable and machine-parseable without vendor lock-in.

Applications

• Pharmaceutical: Preparation of nanoemulsions for oral delivery, homogenization of liposomal formulations, and viscosity-controlled suspension deagglomeration per USP <1059>
• Food Science: Development of stable plant-based dairy alternatives, enzymatic reaction mixing under controlled shear, and texture optimization of protein gels
• Materials Research: Exfoliation of 2D nanomaterials (e.g., graphene oxide), carbon nanotube dispersion in polymer matrices, and ceramic slurry homogenization
• Chemical Engineering: Kinetic studies of interfacial reactions in multiphase systems, catalyst dispersion in viscous media, and solvent-free polymer blending trials
• QC/QA Labs: Routine viscosity benchmarking, batch-to-batch uniformity assessment, and accelerated stability protocol execution per ICH Q5C guidelines

FAQ

What is the minimum sample volume the L5M-A can process effectively?
With the optional micro-probe assembly and 10 mL jacketed vessel, the system achieves reproducible homogenization down to 1 mL—validated using polystyrene latex standards (ISO 13320) and confirmed via laser diffraction particle sizing.
Can the L5M-A be used for temperature-sensitive samples?
Yes—when coupled with a recirculating chiller (e.g., Julabo F25) and jacketed vessel, the system maintains sample temperatures between 4 °C and 60 °C during operation; thermal rise is typically <2 °C over 5 min at 8,000 rpm in water.
Is calibration traceable to NIST standards?
Speed calibration is performed using a NIST-traceable optical tachometer (Optronics OT-3000); current and timer functions are factory-verified against metrology-grade references and documented in the Certificate of Conformance supplied with each unit.