KJ GROUP SFM-MGI-32V High-Throughput V-Shaped Mixer
| Brand | KJ GROUP |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | SFM-MGI-32V |
| Instrument Type | Electric Laboratory Mixer |
| Max. Batch Volume | 50 mL × 32 vials |
| Speed Range | 20–90 rpm (10 rpm increment) |
| Temperature Control | Not equipped |
| Timer Range | 1–900 min (1 min increment) |
| Vial Capacity | 50 mL per V-tube (32 tubes) |
| Dimensions (W×D×H) | 800 × 340 × 380 mm |
| Weight | 20 kg |
| Power Supply | 110/220 V, 50/60 Hz |
Overview
The KJ GROUP SFM-MGI-32V High-Throughput V-Shaped Mixer is an engineered solution for parallel dry powder blending in research and quality control laboratories. Based on the classical V-cone mixing principle—where two symmetrically angled cylindrical chambers converge at a central apex—the device induces gentle yet effective convective motion through controlled rotational tumbling. Unlike high-shear or planetary mixers, this design relies on gravity-driven repositioning and inter-diffusion of particles across the inclined surfaces, minimizing mechanical stress, heat generation, and particle attrition. It is particularly suited for homogenizing free-flowing, low-cohesion powders with similar bulk density and particle size distribution—such as excipients in pharmaceutical formulation development, catalyst precursors in materials synthesis, or food-grade functional blends. The absence of internal agitators or blades eliminates dead zones and ensures complete material recovery post-mixing, supporting GLP-compliant documentation workflows.
Key Features
- Simultaneous processing of 32 independent 50 mL V-shaped mixing tubes—enabling statistically robust screening of formulation variables (e.g., excipient ratios, coating uniformity, or blend stability).
- Brushless DC motor coupled via precision shaft coupling to a rigid aluminum alloy rotation frame—delivering consistent torque output and long-term speed stability across the full 20–90 rpm range.
- Intuitive touch-panel interface with real-time rpm display and programmable timer (1–900 min), supporting repeatable process parameter locking for SOP adherence.
- All wetted surfaces—including tube interiors, silicone caps, and contact fixtures—fabricated from electropolished AISI 316 stainless steel or medical-grade silicone—ensuring corrosion resistance, non-reactivity, and ease of cleaning between batches.
- Modular tube retention system using spring-loaded clamping plates—allowing rapid loading/unloading without tools while maintaining precise angular alignment during rotation.
- Integrated safety cutoff and thermal protection circuitry compliant with IEC 61000-6-3 (EMC) and IEC 61000-6-2 (immunity) standards.
Sample Compatibility & Compliance
The SFM-MGI-32V is validated for use with granular solids, crystalline powders, and microbeads exhibiting Hausner ratio < 1.25 and Carr index < 15%, indicating excellent flowability. It is not recommended for cohesive, hygroscopic, or fibrous materials requiring shear-assisted dispersion. In pharmaceutical applications, the mixer supports compliance with USP “Powder Blending” and ICH Q5C guidelines for consistency of blended intermediates. Its sealed tube configuration prevents cross-contamination and meets basic containment requirements for OEL Band 3 (10–100 µg/m³) handling when used with appropriate PPE. All structural components conform to RoHS Directive 2011/65/EU and REACH Annex XVII restrictions on heavy metals and SVHCs.
Software & Data Management
While the SFM-MGI-32V operates as a standalone instrument without embedded data logging, its timer and speed settings are fully reproducible and manually recordable in laboratory notebooks or LIMS entries. For regulated environments (e.g., GMP manufacturing support labs), users may integrate external USB-based data loggers or time-lapse imaging systems to capture operational metadata—including start/stop timestamps, ambient temperature/humidity, and operator ID—for audit trails. The device’s deterministic mechanical behavior (no variable-frequency drive or PID loops) ensures that set parameters translate directly into physical output—facilitating straightforward validation protocols per ASTM E2500-13 (“User Requirement Specification for Equipment Qualification”).
Applications
- Pre-formulation studies: Rapid evaluation of binary and ternary powder blends for tablet compression trials.
- Catalyst preparation: Uniform dispersion of metal nanoparticles onto porous supports prior to calcination.
- Reference standard preparation: Homogenization of certified reference materials (CRMs) for analytical calibration.
- Food ingredient pre-blending: Combining vitamins, minerals, and carriers under low-energy conditions to preserve heat-sensitive actives.
- Academic materials science: Screening of solid-state reaction precursors where mechanical activation must be avoided.
FAQ
Is the SFM-MGI-32V suitable for mixing liquids or slurries?
No. This instrument is designed exclusively for dry, free-flowing solid-phase mixing. Liquid introduction risks motor overload, seal failure, and unbalanced rotation.
Can the V-tubes be autoclaved?
Yes—AISI 316 stainless steel tubes and silicone caps are compatible with standard steam autoclaving cycles (121°C, 15 psi, 20 min). Verify cap integrity after repeated cycles.
Does the unit comply with FDA 21 CFR Part 11 requirements?
The base instrument does not include electronic signature capability or audit-trail functionality. However, its deterministic operation allows full traceability when paired with external documentation systems meeting Part 11 criteria.
What maintenance is required?
Biannual inspection of coupling alignment, silicone cap elasticity, and electrical connections is recommended. No lubrication of the drive train is necessary due to brushless motor design.
Are custom tube volumes available?
Standard configuration uses 50 mL V-tubes. KJ GROUP offers OEM customization—including 10 mL, 100 mL, or tapered geometries—subject to minimum order quantity and mechanical validation.
