Pestle and Mortar 4”
Product Code : SCL-CLE-11936
The StemAids 4-inch Pestle and Mortar is a high-durability laboratory instrument engineered for the reduction of solid aggregates into fine powders (comminution) and the intimate mixing of multiple solid phases (trituration). Manufactured from high-purity, glazed porcelain (with an unglazed grinding surface), it is designed to provide the necessary friction for mechanical breakdown while resisting chemical contamination. The 100mm (4”) diameter is the standard size for general laboratory use, offering a balance between sample capacity and ease of manual handling.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material |
High-Alumina Chemical Porcelain (ISO 9001:2015) |
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Diameter |
100mm (4 inches) |
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Surface Finish |
Glazed exterior; Unglazed (Matte) grinding surfaces |
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Thermal Resistance |
Thermal shock resistant; autoclavable |
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Chemical Resistance |
High resistance to acids and alkalis (except Hydrofluoric) |
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Design |
Deep-bowl mortar with a heavy-headed, ergonomic pestle |
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Hardness |
Typically 7–8 on the Mohs scale |
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ISO Compliance |
Manufactured under ISO 9001:2015 Quality Management Systems |
Key Pedagogical & Laboratory Outcomes
- Comminution Interface: Facilitates student understanding of Surface Area Kinetics. By grinding crystals into a fine powder, learners identify how increasing surface area accelerates dissolution rates and chemical reactivity.
- Trituration Application: Enables the preparation of Homogeneous Solid Mixtures; learners apply the mortar to blend active pharmaceutical ingredients (APIs) with excipients, ensuring uniform distribution of components.
- Mechanical Analysis: Supports the analysis of "Particle Size Reduction"; students evaluate the physical changes in a substance as it transitions from granular to amorphous states through mechanical force.
- Contamination Evaluation: Provides a platform for evaluating cleaning protocols; the high-density porcelain prevents "cross-contamination" between experiments, provided the matte surfaces are properly scrubbed between uses.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, high-impact packaging. Porcelain is susceptible to chipping; each set is individually nested in shock-absorbent cardboard or foam dividers to ensure zero-breakage during maritime or air transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and material purity certifications.
- Durability: The porcelain is fired at over 1300?C, resulting in a non-porous material that withstands the high mechanical pressure required for grinding hard minerals or crystalline salts.
Direct OEM Sourcing Advantages
Procuring the StemAids 4” Pestle and Mortar directly ensures vertical manufacturing control:
- Optimized Friction Surface: Direct oversight ensures the internal matte finish is consistently abrasive—not too smooth (which causes slipping) and not too porous (which traps sample residue).
- Ergonomic Pestle Geometry: We ensure the pestle head curvature matches the mortar’s internal radius perfectly, maximizing the contact area and reducing student fatigue during extended grinding.
- Direct Factory Inventory: Guaranteed availability of the standard 4” size, as well as smaller 3” and larger 6”/8” versions for varying laboratory scales.
- Quality Assurance: Every unit is inspected for structural "hairline cracks" and glaze integrity to ensure safety during high-pressure manual use.