Liquid Nitrogen Cryogenic Pulverizer
Water Cooled Cryogenic Ultra Fine Cell Wall Breaking Mill
Item Number: PP-LN08
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Product Overview

This water-cooled cryogenic ultra-fine mill is a high-performance vibrating grinder designed for cell wall breaking and superfine powder production. By combining high-speed impact and shear forces with precise temperature control, the system achieves exceptional particle size reduction down to the sub-micron range while preserving sensitive active ingredients. Its fully enclosed, non-classification design prevents material loss and cross-contamination, making it a reliable solution for demanding R&D and small-batch production environments.
Primary use cases span pharmaceuticals, nutraceuticals, food processing, and advanced materials science. The equipment excels at processing fibrous, tough, and heat-sensitive materials—including medicinal herbs, spores, functional foods, and mineral powders. Laboratories and pilot plants benefit from its ability to produce uniform particle distributions with high bioavailability, whether for TCM formulations, capsule blends, or analytical sample preparation.
Built with a robust vibration mechanism and a Japanese NACHI main bearing, this unit delivers consistent performance under continuous operation. The fully sealed stainless-steel construction and GMP-compliant design ensure cleanliness and safety, while the integrated water-cooling jacket and chiller extend its capabilities to low-temperature grinding. This system is engineered to meet the rigorous standards of GLP and GMP facilities, offering stability and confidence in every batch.
Key Features
- Full-Enclosed Non-Classification Technology: A multi-jar, screen-free design completely seals the grinding process, preventing the loss of active constituents and eliminating dust emissions for a cleaner working environment.
- Compression Micro-Grinding Mechanism: High-velocity impact and shear within the vibrating jars subject every particle to uniform forces, drastically reducing grinding time and producing dense, precisely composited microparticle aggregates with enhanced bioavailability.
- Dynamic Process Optimization: The equipment adapts its operational parameters to match the unique characteristics of different materials, ensuring optimal efficiency and particle outcomes for each application.
- Integrated Mechatronics: Advanced automation minimizes manual intervention, delivering reproducible results and reducing the risk of human error or contamination across batches.
- GMP-Compliant Sanitary Design: All product-contact surfaces are mirror-polished 304 stainless steel (food/pharmaceutical grade), free of heavy metals such as arsenic, cadmium, mercury, lead, and copper, guaranteeing purity and cleanability.
- Versatile Cleaning and Changeover: The modular construction allows rapid disassembly and reassembly; cleaning can be performed with water, compressed air, alcohol, or steam, enabling fast product changeovers with minimal downtime.
- Broad Material Compatibility: Handles fibrous, tough, high-hardness, moisture-containing, and sticky materials with equal effectiveness. Supports both dry and wet grinding—simply add water, alcohol, or other liquids as needed.
- Precision Temperature Control: An external water jacket with insulated plumbing connects to a dedicated chiller, allowing grinding temperatures to be maintained between 7–30 °C (standard) or as low as –35 °C with an optional ultra-low-temperature configuration, safeguarding thermo-sensitive actives.
- Low-Noise Operation: A composite transparent soundproof enclosure significantly reduces ambient noise, improving operator comfort and lab safety.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Traditional Chinese Medicine (TCM) & Herb Processing | Ultra-fine grinding of single or compound herbal powders, including ganoderma spores, ginseng, and ligneous plants, for increased efficacy and solubility. | Cell wall breaking rate >98% maximizes active ingredient bioavailability and reduces dosage requirements. |
| Nutraceutical & Functional Food Production | Micronization of spirulina, pollen, dietary fibers, and high-viscosity materials to improve mixability and absorption in supplements and fortified foods. | Uniform particle size distribution (D90 < 50 µm) ensures consistent product quality and prolonged shelf stability. |
| Pharmaceutical R&D & Pilot Manufacturing | Preparation of fine active pharmaceutical ingredients (APIs) and excipients under controlled conditions, meeting stringent GMP standards. | Full containment and clean-in-place capability prevent cross-contamination and support regulatory compliance. |
| Cosmetics & Personal Care Ingredients | Superfine grinding of natural extracts, mineral pigments, and organic powders for premium skin-care products. | Enhanced texture and dispersion properties lead to smooth formulations and improved sensory profiles. |
| Advanced Materials & Sample Preparation | Processing of polymers, ceramics, and composite materials for analytical testing, thermal analysis, and material characterization. | Cryogenic grinding avoids thermal degradation and ensures representative particle size for accurate analytical results. |
| Spore & Hard-Shell Material Breaking | High-efficiency rupture of tough spore coats (e.g., ganoderma lucidum) and hard botanical seeds that resist conventional milling. | Achieves over 90% wall-broken rate at 2500 mesh, unlocking intracellular contents for superior nutraceutical value. |
Technical Specifications
Main Unit
| Parameter | Value |
|---|---|
| Model | PP-LN08 |
| Power | 1.1 kW |
| Voltage | 380 V 3-phase (220 V 2-phase customisable) |
| Main Bearing | Japanese NACHI |
| Jar Nominal Volume | 6 L |
| Amplitude | 6.0 mm |
| Number of Jars | 2 |
| Loading Volume | 1.2 L |
| Jar Wall Thickness | 12 mm |
| Tumble Limit | Double spiral |
| Tumble Mechanism | Fully sealed support structure |
| Grinding Media Material | Food & pharmaceutical grade 304 stainless steel |
| Grinding Media Size | Φ20 × 174 mm |
| Grinding Mode | Vibratory |
| Overall Dimensions (Main Unit) | L1030 × W750 × H1500 mm |
| Weight (Main Unit) | 480 kg |
| Overall Appearance | Stainless steel fully enclosed |
| Placement Environment | GLP laboratory or Class 100,000 GMP workshop |
| Lead Time | 15 working days |
Cooling System
| Parameter | Value |
|---|---|
| Cooling Connection | Rubber hose |
| Chiller Configuration | 1 HP water chiller |
| Cooling Temperature Range | 7–30 °C (standard), down to –35 °C with optional ultra‑low configuration |
| Refrigeration Method | Compressor |
| Chiller Power | 0.75 kW (220 V) |
| Water Jacket | External jacket with thermal insulation |
| Cooling Medium | Water or ethylene glycol |
| Chiller Weight | 65 kg |
Performance Metrics
| Metric | Specification |
|---|---|
| Throughput Capacity (General) | 0.5–4.0 kg/h, achieving 90–98% pass at 300 mesh |
| Lingzhi Spore Powder Throughput | 0.25–0.5 kg/h at 2500 mesh, cell wall breaking rate ≥98% |
| Temperature Control Stability | ±0.5 °C uniformity during extended runs |
Why Choose This Product
- Proven Long-Term Reliability: The system is built around a Japanese NACHI main bearing and a rugged vibratory platform, delivering years of trouble-free service under heavy laboratory use.
- Precision Temperature Management: An insulated external water jacket, coupled with a dedicated compressor chiller, maintains stable low temperatures throughout the grinding cycle, preventing thermal degradation of valuable bioactives.
- Full GMP & GLP Compliance: From the mirror-polished 304 stainless steel construction to the fully sealed design, every aspect meets pharmaceutical-grade sanitary standards, making it ready for regulatory environments.
- Exceptional Material Versatility: Whether processing tough cellulose fibers, sticky resinous materials, or hard mineral particles, this mill adapts effortlessly—supporting both dry and wet grinding for unlimited formulation possibilities.
- Advanced Automation & Safety: Mechatronic controls reduce manual labour and variability, while the transparent soundproof enclosure and dust-free operation create a safer, cleaner laboratory workspace.
Contact us today to discuss your cryogenic grinding needs. Our engineers will work with you to configure a custom solution—whether you require an ultra-low temperature upgrade, a specific voltage, or integration into an existing production line—and provide a detailed quotation promptly.
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