High-temperature Resistant Alumina Ceramic Mortar and Pestle

High-temperature Resistant Alumina Ceramic Mortar and Pestle

Product Descriptions

Based on alumina purity, Ceramic Mortar and Pestle is categorized into three grades—95-grade (standard), 99-grade (high-purity), and 99.7% high-purity alumina (analytical grade)—to meet varying requirements for precision and purity. They are resistant to acids, alkalis, and organic solvents; the dense, non-absorbent material prevents cross-contamination of samples. The 95-grade alumina version offers superior hardness, high-temperature resistance, and minimal impurity leaching, making it suitable for grinding high-purity powders. Glazed versions are easy to clean, while unglazed inner surfaces offer higher grinding efficiency. Durable and robust, these tools are standard laboratory equipment for solid material pulverization, powder mixing, and sample pretreatment.

Material Grade Comparison

Product Core Advantages

1. Ultra-high hardness and exceptional wear resistance

With a Mohs hardness of 9 (second only to diamond), it far surpasses traditional materials such as glass (Mohs 5.5) and agate (Mohs 7). It exhibits minimal self-wear during the grinding process and offers a service life dozens of times longer than that of ordinary glass mortars; the grinding surface remains smooth and flat even after prolonged use, ensuring consistently high grinding efficiency.

2.Chemically inert and highly corrosion-resistant

Alumina ceramics possess extremely stable chemical properties; they withstand exposure to strong acids, strong alkalis, and organic solvents, and do not react with most chemical substances. When grinding corrosive samples, they introduce no contaminating impurities, thereby ensuring sample purity and the accuracy of experimental data.

3.High-purity material for contamination-free grinding

99.7% high-purity alumina mortar: Features extremely low impurity levels, making it suitable for applications requiring exceptional cleanliness, such as trace analysis and the preparation of high-purity materials.Smooth with dense surface (water absorption <0.05%): Minimizes sample adhesion, facilitates easy cleaning, and eliminates cross-contamination.

4.High-temperature resistance and excellent thermal stability.

With a melting point as high as 2050°C, it can be used in environments exceeding 1600°C. It features a low coefficient of thermal expansion and excellent thermal shock resistance, allowing for the direct grinding and processing of high-temperature samples to meet specialized experimental requirements.

5.High mechanical strength; resistant to compression and impact.

It features a compressive strength of ≥850 MPa and a flexural strength of ≥350 MPa at room temperature, combining high hardness with good toughness. The mortar walls are thick and robust, capable of withstanding significant grinding pressure without fracturing, ensuring safe and reliable use.

6.Excellent electrical insulation properties

Volume resistivity exceeds 10¹⁴ Ω·cm, and dielectric strength reaches 15–20 kV/mm. It provides reliable electrical insulation during live grinding or in high-voltage environments, making it suitable for processing specialized samples such as electronic materials and conductive powders.

Product Specifications

1.Mortar Specifications

Note: Non-standard customization is available; special dimensions, irregular shapes, mortars with lids, mortars with bases, etc., can be customized according to customer requirements.

2.Pestle Specifications

The pestle is designed for use with the matching mortar; both are made of the same grade of alumina and precision-machined to ensure a perfect fit against the mortar's inner wall.The head of the pestle can be customized according to grinding requirements as either a rounded type (suitable for fine grinding) or a flat type (suitable for large-area grinding).

Precision Machining Process

Application Areas

1.Chemical analysis and laboratory research

   Sample pre-treatment: pulverizing, grinding, and mixing solid samples to prepare powders for analysis

   Reagent preparation: grinding and homogeneous mixing of high-purity reagents

   Catalysis research: grinding and preparation of catalyst supports; processing of high-specific-surface-area materials

2.Pharmaceuticals and biomedicine

   API milling: ultrafine grinding of drug powders to ensure uniform particle size

   TCM pulverization: fine grinding of Traditional Chinese Medicine materials while preserving active ingredients

   Formulation R&D: uniform mixing of active ingredients and excipients to ensure product quality

3.Food and agriculture

   Food additive grinding: ultrafine pulverization of food-grade raw materials

   Agricultural product testing: pre-treatment grinding of grain and soil samples

   Condiment processing: fine grinding of spices and colorants

4.Electronics and New Materials

   Electronic ceramic powders: grinding of electronic materials such as barium titanate and zirconia

   Battery materials: pulverization and mixing of cathode and anode materials

   Nanomaterial preparation: ultrafine grinding of high-purity materials, avoiding metal contamination

5.Metallurgy and minerals

   Ore analysis: pulverization and sample preparation of mineral samples

   Metal powders: grinding and homogenization of alloy powders

   Refractory materials: grinding of raw materials such as high-purity alumina and magnesia

Usage Method

1. Handle with care: although highly durable, the material is brittle; avoid violent impacts.
2. Load moderately: do not fill beyond one-third of the mortar's volume to prevent spillage during grinding.
3. Apply force evenly: maintain uniform contact between the pestle and the grinding surface; avoid applying excessive pressure to a single point.
4. Grind with a rotating motion: use a clockwise or counter-clockwise rotation to ensure even grinding.

Cleaning and Maintenance

Prompt cleaning: rinse with distilled water immediately after use to prevent sample residue.

Gentle cleaning: use a soft-bristled brush for light cleaning; avoid using hard tools that could scratch the grinding surface.

Drying and storage: allow to air-dry naturally or dry at a low temperature after cleaning; store in a dry, well-ventilated area.

Regular inspection: periodically check the grinding surface for cracks or severe wear, and replace promptly if necessary.

Ordering Information

1.Customization Services

   Dimensions: customization available for non-standard specifications regarding aperture, depth, and wall thickness.

   Structure: options include mortars with lids or bases, as well as split-type or integrated designs.

   Purity: select from 95%, 99%, or 99.7% alumina grades based on experimental requirements.

   Accessories: pestles can be customized with varying lengths, diameters, and head shapes.

2.Quality Assurance

   Every product batch undergoes multiple tests, including density, hardness, strength, and water absorption.

   Material composition analysis reports and certificates of conformity are provided.

   Comprehensive after-sales service system with a professional technical team offering usage guidance.

3.Packaging & Logistics

   Shock-absorbing foam, individual packaging boxes, and an outer carton ensure safe transport.

   Supports international shipping.

Our workshop

Why choose us?

1.Customized R&D, rather than standard product adaptation

2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency

3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.

FAQ

Q1: What products does your company offer?

We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.

Q2: Can you customize non-standard parts?

Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.

Q3: What about accuracy and delivery time?

Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.

Q4: Main application areas?

Power, electronics, machinery, chemical, and aerospace industries.

Q5: Quality assurance measures?

Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.

Q6: Do you provide technical support?

We provide professional support such as material selection consultation, design optimization, and failure analysis.