Laboratory Pulverizer
Small High-Speed Laboratory Grinder for Powder Processing
Item Number: PP-SL18
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Product Overview
This high-speed grinder is a compact, benchtop unit engineered for the rapid comminution of dry materials in laboratory and light industrial settings. By utilizing a direct-drive high-speed motor coupled with precision alloy steel blades, it reduces sample particle size from coarse chunks to fine powders within seconds. The swinging body design and sealed grinding chamber deliver reliable, contamination-free processing, making it an indispensable tool for sample preparation workflows where consistency and speed are critical.
Designed for versatility, this system excels in grinding a wide array of materials—including fibrous plant tissues, hard minerals, brittle pharmaceuticals, and temperature-sensitive chemicals. Its widespread adoption across pharmaceutical quality control, food testing labs, agricultural research stations, and educational institutions speaks to its adaptability. With a capacity range of 50 to 500 grams and adjustable fineness from 30 to 300 mesh, the unit handles both small-batch R&D and moderate-volume routine testing with equal ease.
Built to meet the demands of rigorous daily use, this grinder features a robust 304 stainless steel chamber formed through a one-step deep-drawing process, ensuring no crevices for residue buildup and exceptional structural integrity. The alloy steel blades retain sharpness over thousands of cycles, while an integrated overload melt-safety device protects the motor, extending operational life. Its sealed dust-proof switch prevents ingress of fine particles, enhancing operator safety and simplifying maintenance. Backed by our commitment to quality, this unit delivers the precision and durability that modern laboratories require.
Key Features
- Powerful 1.3 kW High-Speed Motor: The heart of the grinder is a 1.3 kW motor that spins the blade assembly at 25,000 RPM, generating tremendous shear forces for near-instantaneous size reduction. This eliminates the slow, manual crushing steps common in older mills, significantly cutting sample preparation time while maintaining a compact footprint.
- Stepless Fineness Adjustment via Timer: Grinding fineness is controlled simply by setting the run time—longer cycles yield finer particles, allowing users to dial in any output from 30 mesh down to 300 mesh without changing screens or adjusting physical gaps. This repeatable method ensures batch-to-batch consistency critical for analytical reliability.
- Sealed, Dust-Free Operation: The grinding chamber forms a completely enclosed environment, with a specialized dust-proof and splash-proof switch that locks in place during operation. This design prevents cross-contamination between samples and keeps the lab bench clean, making it ideal for multi-user or multi-sample workflows.
- Durable 304 Stainless Steel Chamber: The chamber is fabricated from food-grade 304 stainless steel using a one-time deep-drawing process that eliminates welds and crevices, ensuring smooth interior surfaces for easy cleaning and maximum corrosion resistance. Its 1.2 L volume accommodates sample loads up to 500 g while maintaining efficient heat dissipation.
- High-Grade Alloy Steel Blades: The cutting blades are machined from hardened alloy steel, selected for exceptional abrasion resistance and toughness. Even when processing hard minerals or tough fibrous roots, the blades retain their edge, delivering consistent particle size distributions run after run.
- Swinging Body for Flexible Placement: The swinging chassis design requires no permanent mounting, allowing the grinder to be placed on any stable surface and operated in any orientation. Weighing only 10 kg, it is easily relocated between workstations, maximizing lab flexibility.
- Comprehensive Safety Features: Besides the sealed switch, an internal overload melt safety fuse automatically disconnects power if current exceeds safe limits, protecting both the motor and the user. These features comply with laboratory safety standards and reduce risk during unattended operation.
- Broad Material Compatibility: From soft leafy herbs to hard sand particles, this system accommodates a diverse spectrum of dry materials including grains, spices, plastics, minerals, and chemical powders. Its high-impact grinding mechanism avoids the smearing or melting that can occur in lower-speed mills, preserving sample integrity.
- Effortless Cleaning and Maintenance: The smooth, non-stick 304 stainless steel chamber surface and accessible design allow for complete disassembly and cleaning in minutes. No tools are required for routine cleaning, minimizing downtime between batches and preventing cross-contamination.
- Ergonomic and User-Friendly Operation: The intuitive one-touch switch and lightweight swinging body reduce operator fatigue. An open, unobstructed chamber mouth makes loading and unloading samples simple, even when wearing gloves.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Pharmaceutical R&D | For particle size reduction of active pharmaceutical ingredients, excipients, and traditional Chinese medicine powders used in dissolution testing, bioavailability studies, and formulation development. The sealed chamber prevents active compound loss and cross-batch contamination. | Ensures reproducible particle size distribution and meets FDA cGMP guidelines for sample preparation. |
| Food Quality Control | Grinding grains, spices, nuts, and dried food samples for proximate analysis, mycotoxin screening, or moisture content determination. The stainless steel chamber is food-safe and easy to sanitize between samples. | Eliminates carryover, maintaining sample integrity for accurate compliance testing. |
| Agricultural Research | Processing seeds, plant tissues, soil samples, and fertilizers to fine powders for nutrient analysis, soil characterization, and pesticide residue detection. Wide capacity range handles both small and large sample loads. | Reduces sample prep time while delivering consistent fineness for reliable analytical results. |
| Chemical Lab Testing | Pulverizing pigments, polymers, and chemical intermediates for quality inspection, particle size distribution measurement, and reaction monitoring. The corrosion-resistant chamber withstands mild acidic or alkaline residues. | Durable construction supports high-throughput testing with minimal maintenance. |
| Geology & Mineralogy | Crushing small ore samples, rocks, and minerals for geochemical analysis, XRF sample preparation, or petrographic studies. The hardened alloy steel blades resist abrasion from siliceous materials. | Extends blade life and ensures consistent comminution even with hard, brittle samples. |
| Traditional Medicine Preparation | Fine grinding of dried herbs, roots, barks, and seeds for extraction, encapsulation, or direct dispensing in pharmacies and clinics. The high-speed action preserves volatile oils and active compounds. | Enables on-demand, dust-free grinding that maintains aroma and therapeutic properties. |
| Educational & Research Labs | Used as a teaching tool in materials science, chemistry, and biology courses to demonstrate sample size reduction. The simple, safe design allows students to operate this unit with minimal supervision. | Provides reliable, repeatable results for educational experiments while teaching lab safety. |
| Environmental Sample Preparation | Grinding soil, sediment, and dried sludge samples for heavy metal analysis or contamination studies. The sealed design prevents release of potentially hazardous dusts during grinding. | Protects operator safety while delivering homogeneous samples for trace-level analysis. |
Technical Specifications
The following table details the complete technical specifications of the PP-SL18 small high-speed grinder.
| Parameter | Specification |
|---|---|
| Model | PP-SL18 |
| Product Name | Small High-Speed Grinder |
| Power | 1.3 kW |
| Voltage | 220 V |
| Rotational Speed | 25,000 r/min |
| Grinding Fineness | 30–300 mesh |
| Grinding Capacity | 50–500 g |
| Grinding Chamber Size | 19 × 7.5 cm (diameter × height) |
| Chamber Manufacturing Process | One-step deep drawing |
| Chamber Volume | 1.2 L |
| Chamber Material | 304 stainless steel |
| Blade Material | High-grade alloy steel |
| Switch Type | Sealed dust-proof & splash-proof |
| Body Structure | Swinging type |
| Weight | 10 kg |
| Dimensions (L×W×H) | 200 × 220 × 350 mm |
| Overload Protection | Melt-safety fuse |
Why Choose This Product
- Proven Reliability in Demanding Labs: This grinder is built on an evolution of the original Taiwanese design, refined over years of field use to offer unmatched durability. The one-piece deep-drawn chamber and high-quality stainless steel construction have been validated in thousands of labs worldwide, ensuring that your investment withstands the test of time.
- Superior Particle Control and Consistency: Unlike conventional hammer mills, the precise timer-based fineness adjustment eliminates guesswork, producing uniform powders with narrow particle size distributions. This consistency translates directly into more accurate analytical results and higher confidence in research outcomes.
- Uncompromising Safety and Cleanliness: Every aspect of the design—from the sealed dust-proof switch to the automatic overload protection—prioritizes operator safety and contamination prevention. The fully enclosed grinding process means no sample loss, no harmful dust release, and minimal cleanup, meeting strict laboratory hygiene standards.
- Versatility Without Compromise: Whether you are grinding soft, fibrous botanicals or hard, brittle minerals, the high-speed impact mechanism adapts effortlessly. This reduces the need for multiple mills and simplifies inventory, saving both capital and bench space.
- Dedicated Support and Customization: As a manufacturer with deep expertise in sample preparation, we offer responsive pre- and post-sales support, including guidance on optimization for specific materials. Contact our team to discuss custom blade configurations or integration into automated workflows. Discover how this high-speed grinder can elevate your sample preparation processes—request a quote today.
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