KER-5L Electric 3D Motion Mixer
| Origin | China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Model | KER-5L |
| Motor Power | 0.55 kW |
| Mixing Drum Capacity | 5 L |
| Drum Rotational Speed | 18 rpm |
| Weight | 80 kg |
| Dimensions (W×D×H) | 65 × 58 × 56 cm |
| Max Loading Volume | 70% of drum capacity (independent of material density) |
| Mixing Cycle Time | 6–12 min (user-adjustable) |
| Uniformity | ≥99% |
| Construction | 316L stainless steel drum, fully polished interior |
Overview
The KER-5L Electric 3D Motion Mixer is an industrial-grade powder and granular material blending system engineered for high-fidelity homogenization under gravity-driven motion principles. Unlike conventional tumbling or ribbon mixers, this unit employs a true three-dimensional orbital motion mechanism—simultaneous rotation (X-axis), revolution (Y-axis), and axial oscillation (Z-axis)—to induce complex particle trajectories without centrifugal force generation. This kinematic architecture ensures uniform dispersion across materials with divergent bulk densities, particle sizes, moisture contents, and flow characteristics—including free-flowing powders, cohesive agglomerates, heat-sensitive pharmaceutical actives, and high-value composite precursors. Designed for R&D laboratories, pilot-scale formulation centers, and GMP-compliant production environments, the KER-5L delivers reproducible batch-to-batch consistency while eliminating segregation, stratification, and dead-zone accumulation.
Key Features
- Triple-axis motion control: Independent synchronization of drum self-rotation and planetary orbit ensures chaotic yet deterministic particle reorientation—critical for achieving ≥99% mixing uniformity per ASTM D5472 and ISO 4044 standards.
- Stainless steel 316L mixing drum: Fully electropolished interior surface (Ra ≤ 0.4 µm) minimizes residue retention and enables rapid cleaning validation per FDA 21 CFR Part 11 and EU GMP Annex 15 requirements.
- Electromagnetic speed regulation: 0.55 kW brushless motor provides stable 18 rpm operation with ±0.3 rpm repeatability over continuous 8-hour cycles—optimized for thermal stability and low mechanical wear.
- Load-flexible design: Accommodates up to 3.5 L (70% of 5 L volume) regardless of material apparent density (0.2–2.5 g/cm³), eliminating need for density-based recalibration.
- Acoustic optimization: Enclosed geartrain and vibration-damped mounting reduce operational noise to ≤62 dB(A) at 1 m distance—suitable for shared laboratory spaces.
- Modular service architecture: All maintenance-access components—including drive coupling, support bearings, and control interface PCB—are field-replaceable without specialized tools.
Sample Compatibility & Compliance
The KER-5L accepts dry powders, microgranules, coated particles, and brittle crystalline solids with particle size distributions ranging from 10 µm to 3 mm. It is routinely validated for use with USP Class 1–3 excipients, API blends prior to tablet compression, battery cathode precursor mixtures (e.g., NMC, LFP), and ceramic green-body formulations. The mixer conforms to IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emission) standards. Its non-explosive design (no internal sparking elements) meets ATEX Zone 22 classification for combustible dust handling when operated within certified ventilation enclosures.
Software & Data Management
While the base model features analog timer control (6–12 min range, ±10 s accuracy), optional digital upgrade kits integrate RS-485 Modbus RTU communication for integration into MES/SCADA systems. Audit-trail-capable firmware logs cycle start/stop timestamps, actual runtime, motor current draw, and door interlock status—supporting 21 CFR Part 11 electronic record compliance when paired with validated timestamp servers. Batch reports export as CSV files containing mixing duration, drum orientation sequence count, and operator ID (via optional RFID badge reader).
Applications
- Pharmaceutical solid dosage development: Blending of low-dose APIs with lactose or microcrystalline cellulose carriers under QbD frameworks.
- Advanced materials synthesis: Homogenization of multi-component catalyst precursors prior to calcination.
- Food ingredient scaling: Uniform distribution of vitamins, enzymes, or colorants in dry functional blends.
- Electronics manufacturing: Pre-sintering mixing of conductive pastes and dielectric slurries without shear-induced particle fracture.
- Academic research: Fundamental studies on granular dynamics, segregation thresholds, and mixing kinetics in non-Newtonian particulate systems.
FAQ
What is the recommended cleaning protocol between batches?
Rinse the drum with purified water followed by 70% IPA; verify cleanliness via visual inspection and residual solvent GC analysis per USP .
Can the KER-5L handle abrasive materials like silicon carbide powders?
Yes—316L stainless steel construction resists abrasion up to Mohs 7.5; however, extended use with >10 wt% abrasive loading requires quarterly bearing inspection.
Is validation documentation available for GMP audits?
IQ/OQ protocols, calibration certificates for timer and tachometer, and material traceability records are provided upon request.
Does the mixer require compressed air or external cooling?
No—fully electric operation with passive convection cooling; ambient temperature range: 15–30°C.
How is mixing endpoint determined?
Endpoint is defined by time-based validation (e.g., 8 min for most pharmaceutical blends); real-time monitoring requires optional inline NIR probe integration.
