Metallographic grinder and polisher for sample preparation
Optimize your metallographic sample preparation with precision grinding and polishing, achieving consistent microstructure analysis and superior surface finish quality with ease.

Grinds and Polishes Metallographic Samples
The Qpol 250 A1-ECO from QATM is a single-disc grinder and polisher designed specifically for metallurgical and materials science applications. It offers precise control over grinding and polishing processes, catering to metallographic sample preparation with variable speed ranges and adjustable pressure settings. The machine integrates seamlessly into laboratory workflows, utilizing a user-friendly 4.3″ touch screen for operation and program storage of up to 200 customized methods. It supports efficient polishing with optional dosing systems like Qdoser ECO, enhancing consistency and speed. Its robust construction includes an impact-proof plastic bowl and powder-coated aluminum casing, ensuring longevity and ease of maintenance. Capable of processing up to six samples simultaneously, it is suitable for producing microstructure analysis specimens and metallic alloy cross-sections, making it a valuable asset in research, quality control labs, and educational institutions.
Benefits
- Enhances productivity with programmable presets for 200 sample preparation methods.
- Streamlines cleaning and maintenance through single-disc design and quick-access components.
- Optimizes sample quality with adjustable pressure and rotational speed controls.
- Improves workflow efficiency with optional automated dosing systems.
- Reduces operator intervention with intuitive touch-screen interface and automated features.
- Applications
- Sample preparation,Metallography,Material science,Metallurgical analysis
- End products
- Surface finish quality test samples,Microstructure analysis specimens,Metallic alloy cross-sections,Metallographic samples
- Steps before
- Sample Cutting,Mounting,Pre-Grinding,Sample Cleaning
- Steps after
- Etching,Micro Hardness Testing,Visual Inspection,Digital Imaging
- Input ingredients
- metallographic samples,grinding medium,polishing medium,diamond suspension,lubricant,fresh water
- Output ingredients
- prepared metallographic samples
- Market info
- QATM is renowned for its expertise in manufacturing high-quality metallographic equipment and consumables, providing innovative solutions for material testing and analysis, which are trusted by laboratories and quality control professionals globally.
- Speed (grinder)
- 30 - 600 min-1
- Speed (head)
- 30 - 160 min-1
- Working wheel diameter
- Ø 200/250 mm
- Single pressing force
- 5-80 N
- Central pressing force
- 20-350 N
- Connection power
- 2.3 kVA
- Drive power (grinder)
- 0.55 kW (S1)
- Drive power (head)
- 0.18 kW (S1)
- Water connection
- 1x fresh water connection R½" max. 6 bars
- Sample capacity (single pressure)
- 1-6 samples ø 40 mm
- Dimension (W x H x D)
- 511 x 530-610 x 710 mm
- Weight
- ~ 64 - 72 kg
- Dosing system
- Qdoser ECO
- Automation level
- Manual / Touch screen controlled
- Changeover time
- Quick change with single-disc design
- CIP/SIP
- Manual cleaning with easy access
- Cleaning method
- Manual / Spin cycle
- Batch vs. continuous operation
- Batch processing
- Energy efficiency
- 3x 500ml containers
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- CE marking
- Yes
- Compact footprint
- 511 x 530-610 x 710 mm
- Weight
- ~ 64 - 72 kg
- Working wheel size
- Ø 200/250 mm
- Sample capacity (single pressure)
- 1-6 samples Ø 40 mm
- Control panel type
- 4.3" touch screen
- Control panel type
- 4.3" Touch Screen
- Integration possibilities
- Dosing system compatibility
- Optional accessories
- Protective Hood
- Optional dosing unit
- Qdoser ECO / Qdoser ONE