Crushing & Grinding Machine
Sealed Laboratory Sample Preparation Grinding Mill Assay Specimen Pulverizer
Item Number : PS2B
Price varies based on specs and customizations
- Discharge Granularity
- 80–300 Mesh (Adjustable)
- Processing Time
- 1–3 Minutes / Batch
- Grinding Bowl Options
- High Manganese Steel, Alloy, High Chromium Steel, Tungsten Carbide
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Product Overview




This sealed laboratory sample preparation grinding mill is engineered specifically for high-speed, high-efficiency pulverization of brittle materials across various levels of hardness. Operating through an intense eccentric impact mechanism, the equipment rapidly transforms coarse material feeds into uniform fine powders ranging from 80 to 300 mesh in just 1 to 3 minutes. By executing complete pulverization within a hermetically sealed environment, this system provides analytical laboratories with an indispensable solution for fast, reproducible, and dust-free specimen preparation.
Designed for demanding industrial and testing environments, the unit serves critical workflows in mining, metallurgy, geology, chemical engineering, coal quality testing, and construction materials analysis. Its ability to achieve precise target fineness without sample loss makes it essential for preparing feed stock dedicated to X-ray fluorescence (XRF), ICP spectrometry, fire assaying, and classical wet chemical analysis. The robust drive assembly ensures uninterrupted throughput in high-volume testing facilities.
Built to withstand continuous heavy-duty operation, this pulverizer emphasizes structural integrity, operational safety, and material purity. With a wide selection of specialized grinding bowl alloys—ranging from standard high-manganese steel to ultra-hard tungsten carbide—the mill eliminates cross-contamination risks while maintaining maximum wear resistance. Laboratories can rely on this equipment to deliver consistent particle sizing, batch after batch, under challenging industrial testing conditions.
Key Features
- High-Speed Impact Pulverization: Powered by an industrial-grade electric motor driving an eccentric rotation mechanism, the internal impact hammer and ring deliver high-frequency impact, compression, and shear forces to reduce tough, brittle materials into micro-powders within 1 to 3 minutes.
- Hermetically Sealed Contamination-Free Chamber: The fully enclosed grinding bowl assembly prevents fine dust leakage and airborne specimen loss, ensuring strict compliance with laboratory hygiene standards and preserving exact sample mass for precise quantitative assays.
- Adjustable Discharge Granularity: Offers granular particle size tuning from 80 mesh down to 300 mesh, allowing laboratory technicians to match the exact fineness requirements of specific analytical instruments and test standards.
- Flexible Bowl Alloy Options: Accommodates multiple interchangeable grinding container materials—including standard high-manganese steel, alloy steel, high-chromium steel, and tungsten carbide—enabling optimized wear resistance and preventing trace metal contamination based on material composition.
- Heavy-Duty Continuous Motor Drive: Equipped with reliable 1.5 kW or 2.2 kW motors designed for smooth torque transmission, low vibration, and extended duty cycles under repeated heavy loading.
- Ergonomic Quick-Locking Clamping: Features robust quick-clamp fixtures that securely seal the grinding bowls in place, minimizing setup downtime between batches and streamlining routine operations for laboratory technicians.
- Vibration-Damped Reinforced Chassis: Constructed with a heavy steel base frame and vibration-isolation mounts to reduce operational noise, prevent structural fatigue, and maintain stability during high-energy impact cycles.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Geological & Mining Assay Preparation | Pulverizing rock core samples, mineral ores, and drill cuttings for XRF and ICP spectroscopic testing. | Rapid 1–3 minute cycle time accelerates assay throughput while preventing sample cross-contamination. |
| Metallurgical Quality Control | Grinding raw iron ore, slag, ferroalloys, and sinter products into micro-powders prior to chemical assaying. | High-manganese and high-chromium steel bowl options provide extreme durability against abrasive mineral feeds. |
| Coal & Energy Resource Testing | Processing coal, coke, and combustion ash specimens down to 80–300 mesh for proximate analysis and sulfur determination. | Hermetically sealed bowls maintain volatile and moisture integrity during preparation while keeping lab air clean. |
| Cement & Silicate Raw Material Analysis | Crushing raw meal, clinker, limestone, and gypsum samples for fused-bead X-ray fluorescence analysis. | Precise 80–300 mesh adjustable fineness ensures excellent specimen homogeneity and analytical precision. |
| Technical Ceramics & Refractories | Reducing tough ceramic powders, silica sand, and firebrick fragments using ultra-hard grinding tools. | Tungsten carbide bowl options eliminate metallic iron contamination during ultra-hard specimen processing. |
| Environmental & Chemical Solids Testing | Grinding solid wastes, soil matrix samples, fertilizers, and crystalline chemical compounds for digestion protocols. | Fully contained grinding prevents environmental dust exposure and guarantees full sample recovery. |
Technical Specifications
| Parameter | PS2B | PS2B-200 | PS2B-2X200 | PS2B-2X300 | PS2B-2X400 |
|---|---|---|---|---|---|
| Feed Granularity (mm) | ≤ 13 | ≤ 20 | ≤ 20 | ≤ 22 | ≤ 26 |
| Discharge Granularity (mesh) | 80–300 (Adjustable) | 80–300 (Adjustable) | 80–300 (Adjustable) | 80–300 (Adjustable) | 80–300 (Adjustable) |
| Processing Capacity (g/batch) | 2 × 100 | 200 × 1 | 2 × 200 | 2 × 300 | 2 × 400 |
| Motor Power (kW) | 1.5 | 1.5 | 1.5 | 2.2 | 2.2 |
| Processing Time | 1–3 minutes / batch | 1–3 minutes / batch | 1–3 minutes / batch | 1–3 minutes / batch | 1–3 minutes / batch |
| Working Principle | Eccentric impact & ring grinding | Eccentric impact & ring grinding | Eccentric impact & ring grinding | Eccentric impact & ring grinding | Eccentric impact & ring grinding |
| Standard Bowl Material | High Manganese Steel | High Manganese Steel | High Manganese Steel | High Manganese Steel | High Manganese Steel |
| Optional Bowl Materials | Ordinary Steel, Alloy Steel, High Chromium Steel, Tungsten Carbide | Ordinary Steel, Alloy Steel, High Chromium Steel, Tungsten Carbide | Ordinary Steel, Alloy Steel, High Chromium Steel, Tungsten Carbide | Ordinary Steel, Alloy Steel, High Chromium Steel, Tungsten Carbide | Ordinary Steel, Alloy Steel, High Chromium Steel, Tungsten Carbide |
Why Choose This Product
- Rapid Sample Processing: Converts tough mineral and industrial samples into 80–300 mesh analytical powders in as little as 1 to 3 minutes, significantly shortening sample preparation cycles and boosting laboratory throughput.
- Zero Cross-Contamination Risk: Offers a complete portfolio of specialized bowl materials—including standard high-manganese steel, alloy, high-chromium, and tungsten carbide—enabling strict alignment with specific chemical analysis protocols.
- Hermetic Sealed Operation: Protects technicians from dust exposure and preserves sample integrity by containing all particulate matter within a tightly sealed chamber throughout the pulverization process.
- Heavy-Duty Industrial Construction: Built with high-torque industrial motors, reinforced frame structures, and wear-resistant internal components, ensuring multi-shift reliability in high-demand testing facilities.
- Versatile Batch Configurations: Available in multiple single and dual-bowl capacity variants to match specific batch size requirements and laboratory workflows seamlessly.
Contact our technical engineering team today to request a customized quotation, discuss material compatibility options, or select the ideal specimen preparation configuration for your laboratory.
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Product Datasheet
Sealed Laboratory Sample Preparation Grinding Mill Assay Specimen Pulverizer
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