Small High Speed Grinder for Laboratory Sample Preparation

Product Overview

This compact high‑speed grinder is engineered for rapid sample pulverizing in laboratory settings. Its powerful 25,000 rpm motor and alloy steel blades deliver precise size reduction from 30 to 300 mesh in under three minutes, making it ideal for quick analytical preparation. Ideal for QA/QC, R&D, and academic settings, it shortens sample preparation from minutes to seconds. The 304 stainless steel chamber with hygienic deep‑drawn construction resists contamination and simplifies cleaning.

Built for versatility, the unit processes 50 to 400 grams per batch and handles everything from soft botanicals to hard minerals. Its sealed, dust‑proof design and low vibration allow it to be operated on any lab bench without special fixtures, providing unmatched convenience in multi‑user environments.

Reliability is ensured by an overload protection circuit and rugged build quality. This grinder consistently delivers uniform particle size, reducing re‑grinds and ensuring reproducible results across countless cycles in demanding industrial and research labs.

Key Features

This high‑speed grinder incorporates a suite of engineering innovations that dramatically improve safety, precision, throughput, and ease of use. The following features make it the preferred choice for demanding laboratories worldwide.

• Ultra‑High‑Speed Grinding Motor: The 1.2 kW motor reaches 25,000 rpm, generating centrifugal forces that pulverize even tough fibrous materials within 1–3 minutes. The directly coupled rotor minimizes energy loss, while a precision winding ensures stable speed under load, giving exceptionally fast and consistent grinding cycles.
• Hardened Alloy Steel Blades: Fabricated from a high‑carbon, wear‑resistant alloy, the blades are heat‑treated to a uniform hardness and sharpened to a razor‑like edge. This metallurgy resists chipping and dulling when milling abrasive materials such as quartz or limestone, guaranteeing thousands of cycles before replacement.
• Seamless Deep‑Drawn 304 Stainless Chamber: The 1.0‑liter grinding chamber is created in a single deep‑drawing operation, yielding a vessel with no welds, seams, or crevices. This monolithic container prevents sample hang‑up and cross‑contamination, while the electropolished interior meets stringent hygiene standards for food and pharmaceutical labs.
• Airtight Sealing and Dust Control: A high‑durometer silicone gasket and screw‑on lid form a pressure‑tight closure that locks in dust. The external switch is independently sealed to IP66, protecting against airborne powders and liquid splashes, so the grinder can be used safely with fine, hazardous, or sticky powders.
• Timer‑Based Fineness Adjustment: Unlike mills that require mechanical gap adjustments, this grinder lets operators set the desired fineness by simply selecting the run time via an integrated mechanical timer. Short bursts produce coarse 30‑mesh material, while longer cycles yield ultra‑fine 300‑mesh powders, giving complete control without tools.
• Vibration‑Dampening Swing Design: The swing‑type chassis absorbs and dissipates kinetic energy, eliminating the need for permanent mounting. Even at top speed, the unit stays firmly planted on benchtops, and the low 9 kg weight allows one person to reposition it as workflow demands change.
• Overload Protection and Operator Safety: A resettable thermal fuse automatically disconnects power if the motor overloads, preventing costly damage. An interlock microswitch ensures the lid is fully closed before startup, and the blades stop rotating within seconds of lifting the lid, meeting international lab safety standards.
• Exceptional Material Versatility: Capable of grinding soft cellulose, brittle salts, tough roots, and hard rock, this system adapts effortlessly. Typical materials include dried herbs, coffee beans, rice husks, urea pellets, clay, and metal oxides, making it indispensable for contract labs that handle diverse sample streams.
• Rapid, Residue‑Free Cleaning: The entire grinding assembly detaches without tools in seconds. Smooth stainless surfaces resist adhesion, so a simple water rinse or solvent wipe removes all traces. For validated protocols, the chamber and blades can be autoclaved or washed in a parts cleaner, reducing downtime to minutes.
• Space‑Efficient Footprint: Measuring just 210 × 210 × 330 mm, the grinder occupies minimal bench area and fits into fume hoods, glove boxes, or crowded instrumentation racks. A built‑in cord storage keeps the workspace tidy, reinforcing its role as a truly portable preparation station.

Applications

Technical Specifications

The PP‑SL19 high‑speed grinder is built to these exacting specifications, verified on every unit before shipment.

A complete set includes the grinder unit, a spare blade set, silicone gasket, and an instruction manual. Custom configurations—including alternative voltages, corrosion‑resistant blade coatings, and modified chamber geometries—are available on request. Contact our engineering team for a tailored solution.

Why Choose This Product

• Robust, Long‑Lasting Construction: The marriage of thick‑walled 304 stainless steel and hardened alloy blades ensures resilience against daily punishment. Real‑world feedback confirms that these grinders often operate for over a decade in busy labs with only routine cleaning, offering a truly unmatched lifecycle value.
• Precision‑Engineered for Consistency: From the dynamically balanced motor shaft (runout <0.02 mm) to the blade hub machined to h7 tolerance, every component is manufactured with painstaking accuracy. This discipline yields highly reproducible particle size distributions, batch after batch, reducing the need for re‑grinds and improving data quality.
• Hygienic and Easy to Validate: The crevice‑free deep‑drawn chamber simplifies cleaning validation in GLP/GMP settings. Its smooth, non‑reactive surface can be swabbed or rinsed to zero residue, and the entire grinding assembly is autoclavable, supporting the strictest cross‑contamination protocols.
• Adaptable to Unique Challenges: Not all samples are alike. We offer customizations such as cryogenic conversion kits, diamond‑like carbon blade coatings, and stackable sieve inserts. Our application specialists collaborate with your team to pilot grind parameters and configure the optimal hardware for your specific material.
• Responsive Global Support Network: Pre‑purchase grinding trials, on‑site installation, and prompt spare‑parts dispatch ensure that your workflow never stalls. Our sample preparation engineers are available to troubleshoot, optimize methods, and even develop new accessories, making this purchase a long‑term partnership.

In a market crowded with disposable appliances, this high‑speed grinder distinguishes itself as a premium, professional‑grade instrument engineered for non‑stop operation. Request your personalized demonstration or quotation today and join the global community of scientists who rely on our sample preparation solutions to achieve faster, more precise results.