Micro Solid Sample Grinder High Speed Pulverizer for Laboratory Small Batch Grinding

Product Overview

Sample preparation is the foundation of accurate analytical results. This micro solid sample grinder addresses the critical need for fast, reliable pulverization of small sample quantities, delivering homogeneous powders that improve the precision of downstream techniques like XRF, ICP, and NIR. Its high-speed motor and enclosed grinding chamber ensure that even the toughest materials are reduced to target particle size with minimal effort.

Engineered for versatility, this system accommodates a broad spectrum of materials—from hard minerals and ceramics to fibrous plants and polymers. The grinding capacity of 5-50 grams makes it particularly suitable for laboratories working with expensive standards, limited sample availability, or multiple small batches in quick succession. Competing mills often require larger sample volumes, but this grinder is optimized for micro-scale work, eliminating waste.

Unlike traditional mills that rely on sieves to control fineness, this grinder uses time-based grinding: simply set the desired interval, and the high-speed blade produces consistent particle distribution batch after batch. The one-piece stainless steel chamber, formed without welds or seams, guarantees contamination-free processing and effortless cleaning—a vital feature for labs that alternate between different sample types.

Built with the same engineering rigor as our larger industrial mills, this compact device is designed for continuous daily use. Its direct-drive motor minimizes maintenance, while safety interlocks and thermal overload protection ensure operator safety and equipment longevity. From academic research to production QC, it is the dependable choice for micro-scale grinding.

Key Features

• High-Speed Direct-Drive Motor: The 300W motor spins at 25,000 rpm, delivering instantaneous torque that pulverizes even hard minerals like feldspar or quartz down to analytical fineness. Unlike belt-driven mills, the direct coupling eliminates power loss and ensures consistent speed under load.
• Compact, Space-Saving Design: With a footprint of only 110×110 mm and a weight of 3.5 kg, this grinder fits on crowded lab benches or inside fume hoods. No bolting down is required; simply place it on a sturdy surface and it's ready to run.
• Seamless Stainless Steel Chamber: The chamber is formed through a one-piece stretching process, creating a smooth, crevice-free interior. This design prevents sample entrapment, facilitates rapid cleaning between runs, and eliminates the risk of corrosion from acidic or alkaline materials.
• Transparent Viewing Window: The clear polycarbonate lid serves as a viewing port, enabling real-time observation of the grinding progress. This allows operators to stop the process exactly when the desired consistency is achieved, avoiding over-grinding.
• Precision Particle Size Control: Grinding time, rather than sieve size, determines final fineness. Soft materials like grains require as little as 30 seconds, while hard ores may need 90-120 seconds to reach 200 mesh. The manual timer provides repeatable control across batches.
• Exceptional Versatility: From brittle ceramics to fibrous plant tissue, the grinder’s robust blade and high speed make it suitable for an unmatched range of materials: coal, cement, fertilizers, slag, spices, dried herbs, and composite materials, among others.
• Superior Sample Recovery: The fully enclosed chamber and efficient blade sweep ensure that >99% of the loaded sample is recovered as usable powder—critical when handling rare geological specimens or expensive pharmaceutical reference standards.
• Ergonomic and Safe Operation: A single switch controls power, and the lid acts as a safety interlock: the motor cannot run when the lid is open. The grinder also automatically shuts off after 3 minutes of continuous operation to protect the motor and sample from overheating.
• Low Noise, Low Vibration: Despite its extreme rotational speed, precision balancing of the rotor and the use of vibration-absorbing feet keep noise levels below 70 dB, making it suitable for use in quiet laboratory environments.
• Tool-Free Maintenance: Disassembling the chamber for cleaning or blade inspection requires no tools. Simply unscrew the wing nut, remove the blade, and wipe down the chamber—total downtime between samples is under a minute.

Applications

Technical Specifications

Why Choose This Product

• Proven Performance in Demanding Labs: The high-speed 25000 rpm motor has been tested across thousands of cycles with consistent particle size output, demonstrating its reliability for routine quality control and contract research labs where downtime is unacceptable.
• Engineered for Food and Pharma Compliance: The seamless stainless steel chamber and blade are not only durable but also easy to sanitize. The design minimizes pinch points and crevices, supporting cleaning protocols required in regulated industries.
• Quick Return on Investment: By speeding up sample preparation from minutes to seconds, this grinder significantly increases lab throughput, allowing more analyses per shift and reducing labor costs associated with manual grinding.
• Global Spare Parts and Service: As part of a full-line manufacturer of powder processing equipment, we stock replacement blades, lids, and motors, ensuring fast delivery to keep your operation running. Our technical team is available for application advice and troubleshooting.
• Flexible Customization: Voltage configurations (e.g., 110V, 220V), alternative blade materials, and adaptation for glovebox or inert atmosphere use are available upon request. We work with you to tailor the solution to your specific application.

Don’t let sample preparation be the weak link in your analytical chain. Contact us today to request a quote, schedule a demonstration, or discuss how this micro solid sample grinder can be tailored to your laboratory’s specific needs.