VELP OV5 High-Speed Probe Homogenizer

Overview

The VELP OV5 High-Speed Probe Homogenizer is a precision-engineered rotor-stator homogenization system designed for reproducible mechanical disruption, emulsification, dispersion, and homogenization of liquid and semi-liquid samples in research, quality control, and production laboratories. Operating on the principle of high-shear fluid dynamics—where intense radial velocity gradients are generated between a rapidly rotating rotor and a concentric stationary stator—the OV5 delivers controlled energy input to break down particle aggregates, lyse cells, stabilize emulsions, and reduce droplet or particle size distributions. Its modular probe architecture enables rapid adaptation across diverse sample viscosities (up to 10,000 mPa·s) and volumes (from milliliters up to 40 L of aqueous media), making it suitable for both benchtop development work and scalable process optimization studies.

Key Features

• Wide speed range (10,000–30,000 rpm) with digital speed control and real-time RPM display for precise shear rate modulation.
• Interchangeable rotor-stator sets—including narrow-gap, high-shear, and macro-dispersion configurations—each optimized for specific applications such as tissue homogenization, nanoparticle dispersion, or polymer emulsification.
• Stainless steel probe shaft with integrated PTFE seals ensures chemical resistance, thermal stability, and leak-free operation under continuous duty cycles.
• Tool-free, snap-hook coupling mechanism allows full rotor-stator assembly or disassembly in under five seconds—minimizing cross-contamination risk and enabling rapid cleaning or sterilization (autoclavable components).
• Integrated electronic overload protection prevents motor damage during high-viscosity processing or probe jamming events.
• Soft-start motor eliminates torque shock at startup, enhancing mechanical longevity and ensuring operator safety during probe immersion.
• Interlocked safety switch deactivates the drive unit when the probe housing is opened or improperly seated—compliant with IEC 61000-6-2 and EN 61000-6-4 electromagnetic compatibility standards.

Sample Compatibility & Compliance

The OV5 accommodates a broad spectrum of sample matrices: biological suspensions (e.g., mammalian tissues, bacterial cultures), pharmaceutical suspensions, food emulsions (mayonnaise, dairy blends), polymer solutions, and nanomaterial dispersions. Its ability to process fluids up to 10,000 mPa·s supports applications involving hydrocolloids, methylcellulose gels, and high-concentration protein formulations. All wetted parts comply with FDA 21 CFR §177.2600 for indirect food contact, and the instrument bears CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). For regulated environments, the OV5 supports audit-ready documentation protocols when paired with optional data logging accessories compliant with 21 CFR Part 11 requirements (electronic signatures, user access controls, and immutable audit trails).

Software & Data Management

While the base OV5 operates via intuitive front-panel controls, optional RS-232 or USB interfaces enable integration with laboratory information management systems (LIMS) and PC-based control software. This configuration permits automated method recall, parameter logging (speed, duration, timestamp), and export of CSV-formatted operational records—facilitating adherence to ISO/IEC 17025, ASTM E2500, and USP analytical instrument qualification frameworks. Firmware updates are delivered via secure VELP-certified channels, maintaining traceability throughout the instrument lifecycle.

Applications

• Cell lysis and subcellular fractionation in molecular biology workflows.
• Preparation of uniform nanoemulsions for topical drug delivery systems.
• Routine homogenization of environmental water samples prior to microbial or heavy metal analysis.
• Dispersion of carbon nanotubes and graphene oxide in polymer matrices for composite R&D.
• Quality assurance testing of viscosity-stable sauces, dressings, and functional beverages.
• Homogenization of vaccine adjuvant suspensions to ensure consistent particle size distribution (PSD) critical for immunogenicity.

FAQ

What is the maximum recommended operating time per cycle?
Continuous operation is rated for up to 5 minutes at full speed (30,000 rpm); extended use requires ≥2-minute cooling intervals to maintain thermal stability of the motor windings and bearing assembly.
Can the OV5 be used in explosion-proof environments?
No—the standard OV5 is not ATEX- or IECEx-certified; however, VELP offers custom intrinsically safe variants upon request for hazardous area deployment.
Is calibration required before first use?
RPM accuracy is factory-verified against NIST-traceable tachometric standards; no user calibration is needed, though periodic verification using an external optical tachometer is recommended per ISO/IEC 17025 internal quality procedures.
Are spare rotors and stators supplied with the instrument?
The standard configuration includes one universal rotor-stator set; additional geometries (e.g., micro-tip, high-torque, or corrosion-resistant Ti-grade) are available as configurable options.
Does the OV5 support sterile processing?
Yes—all stainless steel and PTFE components are autoclavable at 121°C for 20 minutes; rotor-stator assemblies must be fully disassembled and dried prior to sterilization to prevent seal deformation.