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Grinding & Polishing Machines

Manual & Automatic Metallographic Sample Preparation

Conation Grinding & Polishing Machines provide efficient grinding and polishing of mounted metallographic specimens with excellent repeatability, ergonomic operation and controlled platen motion and durable construction. Manual and fully automatic configurations separate routine operator-led work from repeated high-volume preparation.

Single & Double DiscManual & AutomaticVariable SpeedMetallography Laboratories

Ideal for: Metallography Labs • Universities • Foundries • Heat Treatment • Automotive • Research

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Recommended source size

1600 × 900 px

Consistent Surface Preparation for Accurate Metallography

Proper grinding and polishing removes deformation from sectioning, prepares a flat surface and produces the mirror finish essential for reliable microscopic examination.

Preparation Workflow

  1. 1Mounted Sample
  2. 2Coarse Grinding
  3. 3Fine Grinding
  4. 4Polishing
  5. 5Microscopic Examination

Models & Variants

Highest automation appears first, followed by the single-disc automatic platform and the manual double and single disc machines.

CPM IIA
CPM-A IIFlagship Series

Automatic Double Disc Grinding & Polishing Machine

Automatic double-disc grinding and polishing for laboratories that need repeatable preparation across higher specimen volumes with less operator handling.

Technical Highlights

  • Double aluminium polishing discs
  • Pneumatic motorized polishing head
  • Centralized adjustable polishing force
  • Variable disc speed 50-800 RPM
  • Clockwise and anti-clockwise holder rotation
  • Holds 4, 5 or 6 mounted samples
  • Timer and buzzer
  • Emergency stop
  • Water solenoid control
  • LED RPM display
  • Custom disc sizes: 200 / 250 / 300 mm
  • Anti-corrosive fibre top

Best suited for

Production MetallographySteel PlantsAutomotiveResearch CentresHigh-throughput Laboratories
CPM A
CPM-A

Automatic Single Disc Grinding & Polishing Machine

Compact automatic metallography grinding and polishing machine offering programmable polishing with excellent repeatability.

Technical Highlights

  • Single aluminium polishing disc
  • Pneumatic motorized polishing head
  • Centralized adjustable polishing force
  • Variable disc speed 50-800 RPM
  • Clockwise and anti-clockwise holder rotation
  • Holds 4, 5 or 6 mounted samples
  • Timer and buzzer
  • Emergency stop
  • Water solenoid control
  • LED RPM display
  • Custom disc sizes: 200 / 250 / 300 mm
  • Anti-corrosive fibre top

Best suited for

Quality ControlAutomotiveResearchFailure Analysis
CPM II
CPM-II

Manual Double Disc Grinding & Polishing Machine

Heavy-duty double-disc manual grinding and polishing machine for routine metallography with higher productivity.

Technical Highlights

  • Double disc configuration
  • Variable speed 100-1200 RPM
  • Heavy torque motor
  • DC drive with LED RPM display
  • Washing bowl
  • Water faucets
  • Anti-corrosive fibre top
  • Belt drive

Best suited for

Routine laboratoriesUniversitiesHeat TreatmentGeneral Manufacturing

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Recommended source size

800 × 600 px

CPM-I

Manual Single Disc Grinding & Polishing Machine

Compact entry-level grinding and polishing machine for routine metallographic preparation.

Technical Highlights

  • Single disc configuration
  • Variable speed 100-1200 RPM
  • Heavy torque motor
  • DC drive with LED RPM display
  • Washing bowl
  • Water faucet
  • Anti-corrosive fibre top
  • Belt drive

Best suited for

Educational InstitutesSmall LaboratoriesRoutine QC

Common Features

Variable speed operation
Heavy-duty construction
Tabletop design
User-friendly operation
Robust transmission
Water cooling arrangement
High reliability
Custom disc diameters
Easy maintenance

Which Model Should You Choose?

Compare the automatic and manual grinding-polishing platforms by automation level, disc configuration, specimen handling and typical laboratory fit.

Scroll horizontally to compare all models.

RequirementCPM-A IICPM-ACPM-IICPM-I
OperationAutomaticAutomaticManualManual
Disc ConfigurationDoubleSingleDoubleSingle
AutomationPneumatic polishing headPneumatic polishing headManualManual
Sample Holder4 / 5 / 6 samples4 / 5 / 6 samplesIndividual specimenIndividual specimen
Disc Speed50-800 RPM50-800 RPM100-1200 RPM100-1200 RPM
Disc Diameter200 / 250 / 300 mm200 / 250 / 300 mmCustom disc diametersCustom disc diameters
MotorAutomatic polishing head and disc driveAutomatic polishing head and disc driveHeavy torque motorHeavy torque motor
Typical ApplicationsHigh-volume production, steel plants, automotive, researchFailure analysis, quality control, R&DRoutine metallurgy, heat treatment, general manufacturingTeaching, routine laboratories, educational institutes
Target LaboratoryHigh-throughput production and research labsQC, research and failure analysis labsRoutine metallurgy and manufacturing labsTeaching and compact routine labs
Investment LevelPremium automaticCompact automaticAdvanced manualEconomical manual

Review the deciding requirements.

Share the application, required range and operating conditions. An applications engineer will review the appropriate configuration.

Discuss the Comparison

Accessories

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Recommended source size

300 × 200 px

Paper holding ring

Secures grinding paper flat against the preparation disc.

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Recommended source size

300 × 200 px

Cloth clamping band

Holds polishing cloth securely around the disc perimeter.

aluminium-polishing-disc.jpg

Recommended source size

300 × 200 px

Aluminium polishing disc

Carries the selected grinding paper, polishing cloth or abrasive medium.

sample-holders.jpg

Recommended source size

300 × 200 px

Sample holders

Positions mounted specimens for consistent automatic preparation.

dc-drive.jpg

Recommended source size

300 × 200 px

DC drive

Controls disc rotation across the supported operating range.

rpm-indicator.jpg

Recommended source size

300 × 200 px

RPM indicator

Displays disc speed for repeatable preparation settings.

Applications

Heat Treatment
Steel Plants
Foundries
Automotive
Research
Failure Analysis
Universities
Quality Control
Manufacturing
Metallography

Need Help Choosing the Right Grinding & Polishing Machine?

Tell us your sample size, throughput and laboratory requirements. Our metallography specialists will recommend the ideal manual or automatic grinding and polishing system for your application.

Talk to an Application Engineer