Jet Mills
Benchtop Micro Air Jet Mill for Ultrafine Grinding of High Value Powders
Item Number: PP-JM01
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Product Overview
This micro air jet mill is a compact benchtop system designed for ultrafine grinding of small, high-value powder samples in laboratory environments. It delivers output particle sizes of 2–5 microns from 100-mesh feed material, making it ideal for applications where precision and minimal sample loss are critical. The unit employs high-pressure compressed air to generate supersonic airflow, causing rapid particle-on-particle collisions and shear within a self-contained grinding chamber.
The self-grinding mechanism eliminates mechanical blade contact, ensuring zero metallic contamination and preserving material purity. A unique purging feature uses a short burst of compressed air to clear internal surfaces, allowing fast changeover between different powders—perfect for labs that handle frequent material switches. Heat-sensitive and high-hardness brittle materials, such as ceramics, pharmaceutical actives, and advanced fillers, are processed gently under quasi-low-temperature conditions, protecting their chemical integrity.
Engineered for durability and consistency, this system maintains stable performance across its 0.5–200 g/hr processing range. Its small footprint conserves precious bench space, while robust construction ensures reliable operation in demanding research, quality control, and pilot-scale development settings.
Key Features
- Supersonic Airflow Grinding: Accelerates particles to ultra‑high speeds using compressed air, producing a narrow particle size distribution (d50 typically 2–5 µm) and more regular, spherical particle shapes for superior powder performance.
- Zero‑Contamination Design: The self‑impact milling process requires no grinding media or mechanical blades, eliminating metal wear and cross‑contamination—critical for high‑purity applications in pharmaceuticals, battery materials, and advanced ceramics.
- Rapid Material Changeover: A quick purge with compressed air completely cleans the mill between batches, drastically reducing downtime and preventing cross‑contamination when switching between high‑value powders.
- Quasi‑Low‑Temperature Operation: The expanding gas jet cools the grinding zone, protecting heat‑sensitive compounds like phenols, flavonoids, and organic pigments from oxidative degradation and loss of bioactivity.
- Exceptional Recovery Rate: Its fluid‑bed design and efficient product‑collection bag minimize sample holdup, ensuring over 98% recovery of even sub‑gram quantities—ideal for precious research materials.
- Precise Parameter Control: Independently adjustable feed‑nozzle pressure (0.3–0.4 MPa) and crushing pressure (0.6–0.7 MPa) give operators fine control over particle size and throughput.
- Compact Benchtop Footprint: With dimensions of just 540 × 340 × 250 cm, the unit fits easily in crowded laboratories, and a 5.5 kW power requirement allows standard electrical connectivity.
- Versatile Material Handling: Capable of grinding hard, brittle materials (Mohs 1–9) including zircon sand, silica, alumina, carbon black, and pearl powder, as well as cohesive, heat‑sensitive powders.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Advanced Ceramics | Micronisation of zircon sand, zirconia, and alumina for high‑performance ceramic components | Narrow particle spread improves green‑body density and sintering uniformity |
| Paints & Coatings | Ultrafine grinding of pigments, extenders, and AC foaming agents | Consistent 2–5 µm dispersion enhances colour strength and film smoothness |
| Pharmaceuticals & Nutraceuticals | Low‑temperature milling of heat‑sensitive actives (e.g., herbal extracts, vitamins) | Preserves total phenol and flavonoid content; no risk of thermal degradation |
| Cosmetic Powders | Preparation of ultra‑fine pearl powder, talc, and functional fillers | High recovery minimises loss of expensive raw materials; quick‑purge prevents batch contamination |
| Battery & Energy Materials | Processing of cathode materials (LiCoO₂, LiFePO₄) and conductive carbon black | Contamination‑free milling ensures high electrochemical purity and uniform particle shape |
| Rubber & Plastics | Micronisation of silica, carbon black, and mineral fillers for elastomers and thermoplastics | Uniform dispersion enhances mechanical reinforcement and surface finish |
| Fluorescent & Optical Powders | Grinding of phosphors and luminescent pigments without damaging crystal structure | Gentle impact preserves optical properties while achieving target fineness |
| Food & Functional Ingredients | Milling of spices, fibre powders (e.g., Tartary buckwheat bran), and micro‑encapsulated flavours | Low‑temperature, high‑purity process retains nutritional value and aromatic compounds |
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PP-JM01 |
| Processing Capacity | 0.5–200 g/hr |
| Feed Particle Size | ≤ 100 mesh (149 µm) |
| Output Particle Size | 2–5 µm |
| Air Consumption | > 0.4 m³/min |
| Feed Nozzle Pressure | 0.3–0.4 MPa |
| Crushing Pressure | 0.6–0.7 MPa |
| Power Requirement | 5.5 kW |
| Dimensions (L × W × H) | 540 × 340 × 250 cm |
| Weight | 85 kg |
Why Choose This Product
- Industry‑Proven Particle Engineering: The supersonic jet milling technology guarantees a reproducible 2–5 µm particle size with a narrow span, enabling your downstream processes to achieve tighter quality control and fewer rejections.
- Ultra‑Clean, Investment‑Safe Design: The absence of grinding media avoids minute metal contamination, preserving both product purity and your laboratory certification requirements. Quick compressed‑air purging allows you to run multiple samples daily without cross‑talk.
- Built for High‑Value, Low‑Volume Work: With sub‑gram processing capability and >98% recovery, this unit protects your most expensive precursor powders—paying for itself through material savings alone in many research settings.
- 24/7 Reliability in Demanding Environments: Constructed from wear‑resistant stainless steel and engineered for continuous suction‑type operation, the system delivers consistent performance with minimal maintenance, backed by responsive global support.
- Customisation & Expert Guidance: Our application specialists can adapt nozzle configurations, collection bag materials, and pressure profiles to your specific powder challenge. Contact us today for a tailored solution and a comprehensive quotation.
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