Order Code	Product Name
L-11-02-M03	Magnetic Diamond Grinding Discs for Metallographic Sample Preparation | FKN PANDA

Magnetic Diamond Grinding Discs for Metallographic Sample Preparation

Brief Introduction

Magnetic Diamond Grinding Discs are resin-bonded precision grinding consumables developed for high-standard specimen preparation in mining, metallurgical and industrial laboratories. Using premium raw materials and mature compression molding technology, these discs provide stable grinding performance for hard minerals, rock core samples and high-hardness alloy specimens.

Featuring renewable honeycomb and hexagonal groove abrasive structures, the discs allow regular surface dressing to remove accumulated swarf and expose fresh diamond grains, restoring cutting performance and extending service life. The integrated magnetic base enables rapid tool-free replacement, simplifying laboratory grinding operations and supporting consistent mineral analysis and metallurgical testing workflows.

Application Scope

Magnetic Diamond Grinding Discs are widely used in mineral sample preparation, metallographic microstructure testing, geological core analysis and precision grinding of high-hardness materials. They provide uniform surface finishing for rock samples, core samples and mineral specimens requiring reliable microscopic observation and material evaluation.

In metallurgical laboratories, these grinding discs are suitable for processing hard metals, tungsten carbide and titanium carbide specimens before microscopic inspection. They also support precision preparation applications involving aerospace alloys, composite materials, engineering ceramics, silicon wafers and optical glass, meeting diverse laboratory specimen finishing requirements.

Features

Renewable Grinding Structure Ensures Consistent Surface Quality

The compression-molded honeycomb and hexagonal groove abrasive structures provide renewable grinding performance. Dressing every 30–40 minutes with a dressing stone removes grinding swarf and exposes fresh diamond grains, maintaining stable cutting performance during extended laboratory operation. The consistent abrasive action helps reduce uneven material removal and supports standardized specimen surfaces for mineral analysis and metallurgical testing.

Magnetic Base Design Improves Operation Efficiency

The built-in magnetic base enables fast tool-free installation and replacement, reducing adjustment time during daily grinding operations. The integrated resin bond molding structure maintains secure connection between abrasive layer and base, supporting stable performance during repeated specimen preparation processes.

Strong Cutting Performance Extends Consumable Service Life

The optimized grooved and hexagonal abrasive structures improve chip removal efficiency and reduce abrasive clogging. Uniform diamond grain distribution maintains sustained cutting capability, while the renewable design reduces replacement frequency compared with conventional grinding discs.

Wide Compatibility Supports Standard Laboratory Workflows

Available particle sizes and diameter specifications support coarse grinding through ultra-fine finishing procedures. The magnetic quick-change structure is compatible with semi-automatic and automatic metallographic grinding workflows commonly used in mining and metallurgical laboratories.

Cost-Efficient Design Supports Long-Term Laboratory Operation

Localized production with resin compression molding technology provides stable grinding performance and competitive procurement advantages. The renewable abrasive structure reduces long-term consumable consumption and supports cost-effective operation for high-frequency laboratory preparation tasks.

Specification

Product Name: Magnetic Diamond Grinding Discs

Bond Type: Resin bond

Structural Types: Grooved pattern, Hexagonal pattern

Core Feature: Renewable grinding performance, magnetic quick-change base

Dressing Cycle: Dress with dressing stone every 30–40 minutes to restore cutting performance

Full Specifications

Grooved Pattern

• 120# (125μm): 200mm, 230mm, 250mm, 300mm

• 180# (80μm): 200mm, 230mm, 250mm, 300mm

• 400# (40μm): 200mm, 230mm, 250mm, 300mm

• 800# (20μm): 200mm, 230mm, 250mm, 300mm

• 1500# (10μm): 200mm, 230mm, 250mm, 300mm

Hexagonal Pattern

• 2500# (6μm): 200mm, 230mm, 250mm, 300mm

• 5000# (3μm): 200mm, 230mm, 250mm, 300mm

Applicable Materials: Rock/core samples, metallographic specimens, hard metals, tungsten carbide, titanium carbide, aerospace alloys, composite materials, engineering ceramics, crystals, silicon wafers and optical glass.

Why Choose FKN PANDA

FKN PANDA supplies magnetic diamond grinding discs designed for global mining laboratories, metallurgical testing facilities and material research applications. With resin bond technology, renewable abrasive structures and magnetic quick-change design, these grinding consumables provide stable performance for demanding specimen preparation workflows.

Complete particle size and diameter options support different grinding stages from coarse preparation to ultra-fine finishing. The renewable groove design reduces long-term consumable replacement requirements, while reliable workflow compatibility helps mining technical teams, laboratory QC departments and distributors achieve efficient and consistent sample preparation operations.

Magnetic Diamond Polishing Disc – FAQ

Q1. How to select magnetic diamond polishing discs for different ore hardness in automated mining laboratory sample preparation?

Selecting magnetic diamond polishing discs requires consideration of ore hardness, mineral composition, sample preparation stage, and the requirements of the final analysis. Hard mineral samples such as complex ores or metallurgical specimens may require suitable diamond abrasive grades to achieve controlled material removal and surface refinement. In automated mining laboratories, the disc selection should also match the polishing machine configuration and workflow requirements. Proper selection helps maintain consistent sample surfaces during the preparation sequence from sectioning and grinding to microscopic examination and mineral evaluation.

Q2. What factors should be considered when choosing magnetic diamond discs for mineral sample preparation?

Important factors include diamond grit size, disc compatibility with automatic polishing equipment, magnetic mounting design, sample characteristics, and the required surface finish. Mining laboratory samples can vary significantly in hardness, structure, and mineral distribution, so the polishing consumable should be selected according to the intended analytical purpose. For metallurgical testing and mineral microstructure analysis, stable disc performance and consistent surface preparation are important considerations. Laboratories should evaluate existing equipment specifications and preparation procedures when selecting magnetic diamond polishing discs.

Q3. What are the differences between magnetic and adhesive-backed diamond discs for automated mining laboratory workflows?

Magnetic and adhesive-backed diamond discs differ mainly in their mounting method and workflow compatibility. Magnetic discs are designed for applications where quick installation and replacement are required with compatible polishing systems, while adhesive-backed discs use bonding layers for attachment to polishing plates. In automated mining laboratory operations, mounting efficiency, changeover requirements, and equipment compatibility should be considered when selecting a disc type. The appropriate choice depends on the laboratory’s polishing equipment, sample volume, and requirements for consistent preparation cycles.

Q4. How does magnetic disc diamond distribution influence surface finish uniformity during ore sample preparation?

Diamond abrasive distribution affects how evenly material is removed during polishing and can influence the consistency of the prepared surface. Uniform abrasive distribution helps support stable polishing behavior across different areas of mineral samples, which is important for microscopic observation and microstructure evaluation. In mining laboratories, consistent surface preparation reduces variations during analysis of ore textures, mineral boundaries, and metallurgical phases. Selecting suitable magnetic diamond discs based on sample characteristics and analytical requirements helps maintain reliable preparation quality.

Q5. How can magnetic diamond polishing discs improve repeatability in automated mineral analysis workflows?

Magnetic diamond polishing discs can support repeatable preparation workflows by providing a standardized polishing interface for compatible automatic systems. Consistent mounting, controlled abrasive performance, and established polishing procedures help reduce variations between multiple sample preparation cycles. In mining laboratories, repeatability is important because prepared surfaces are used for mineral identification, microstructure observation, and metallurgical evaluation. When implementing new laboratory setups, expanding preparation capacity, or replacing existing consumables, laboratories should consider how polishing discs integrate with their overall sample preparation process.

Q6. How should laboratories select magnetic disc grit sequence based on ore sample characteristics?

The selection of magnetic disc grit sequence should be based on sample hardness, mineral structure, previous preparation steps, and the final analytical objective. Coarser diamond grades are generally used for earlier material removal stages, while finer grades are applied for surface refinement before microscopic or analytical examination. Composite ore samples with different mineral hardness may require carefully controlled preparation procedures to achieve uniform surfaces. A suitable grit sequence helps laboratories maintain consistent preparation quality throughout mineral testing and metallurgical evaluation workflows.

Q7. Which magnetic diamond disc specifications are suitable for high-throughput automated mining laboratory operations?

For high-throughput automated operations, magnetic diamond disc specifications should match the polishing machine design, sample volume, and required preparation standards. Laboratories should consider factors including mounting compatibility, abrasive grade selection, replacement procedures, and workflow consistency. In continuous mineral testing environments, reliable consumable management helps maintain stable preparation processes for multiple samples. Proper specification matching supports efficient laboratory operation while maintaining the surface quality required for mineral analysis, metallurgical testing, and microscopic examination.

Q8. What compatibility requirements exist between magnetic diamond discs and fully automatic polishing machines?

Compatibility between magnetic diamond discs and fully automatic polishing machines depends on the machine’s mounting system, disc dimensions, polishing platform design, and operating requirements. Before selection, laboratories should confirm that the consumable matches their existing automated equipment configuration. Proper compatibility helps ensure stable installation, efficient operation, and consistent polishing performance during routine sample preparation. This consideration is particularly important for mining laboratories that operate automated workflows involving large numbers of geological, mineral processing, or metallurgical samples.

Q9. What are the limitations of standard magnetic diamond discs when polishing composite mineral samples with varying hardness?

Composite mineral samples may contain phases with significantly different hardness levels, which can create challenges during polishing. Standard magnetic diamond discs may require careful selection of abrasive grade and preparation procedures to achieve a balanced surface finish across different mineral components. In metallurgical and mineralogical workflows, inappropriate polishing conditions may influence surface quality and microscopic interpretation. Laboratories should evaluate sample characteristics and adjust polishing parameters according to their analytical requirements to achieve reliable preparation results.

Q10. How can laboratories optimize magnetic diamond disc replacement schedules for consistent surface quality?

Optimizing replacement schedules requires monitoring preparation results, sample characteristics, polishing conditions, and changes in surface quality during operation. Instead of using a fixed replacement interval for all applications, laboratories should establish procedures based on actual workflow requirements and consumable performance. In automated mining laboratory environments, effective consumable management helps maintain consistent sample preparation conditions, reduce unexpected workflow interruptions, and support reliable mineral testing and metallurgical evaluation processes.

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