Product photography / image presentation, not a live operation
Grinding & polishing
MP-3A
Metallographic grinding and polishing machine
The MP-3A is a three-disc cabinet grinder-polisher with a stainless-steel enclosure and selectable fixed or variable operating speeds.
TECHNICAL DATA
Technical specifications
Specifications are compiled from published references. Confirm configuration, options and delivery requirements with an engineer.
| Parameter | Specification / configuration |
|---|---|
| Model | MP-3A |
| Machine body configuration | Stainless steel cabinet, three discs and cleaning sink |
| Control method | Three discs with independent controls |
| Rotation direction | Forward and reverse rotation |
| Grinding disc speed | Stepless speed control (50-1500r/min) + preset speeds (400, 700, 900, 1400r/min) |
| Main unit power | 550W*3 |
| Speed control | Servo control |
| Grinding disc diameter | φ230mm (optional φ200) |
| Water spray | Adjustable orientation |
| Power supply | 220V |
| Dimensions | 1500*560*1050mm (L * W * H) |
| Weight | 90KG |
Specifications checked 2026-11-12 based on the archived public product page.
Working principle
Stepwise grinding & polishing
Each step removes the damage left by the previous one, rotating the direction by 90°, until only negligible relief remains and the structure is not smeared.
- P240 → P2000
- 90° rotation
- Diamond to mirror
Product overview
The MP-3A uses waterproof metallographic abrasive papers of different grit sizes and polishing materials to prepare metal, alloy and petrographic specimens. Fixed-speed pairs of 500/1000 or 600/1200 rpm can be set at the factory to customer requirements. Variable operation provides an adjustable range of 100 to 1500 rpm, allowing the user to select a speed for either grinding or polishing.
Understand the instrument in context
Select the instrument together with the material, specimen dimensions, target surface and downstream inspection task.
Explore preparation workflows →Questions before selecting
What specimen information should I provide?
Provide material, geometry, dimensions, target cross-section, batch size, current method and the problem to solve.
Are these specifications the final configuration?
The page supports preliminary selection. Confirm fixtures, consumables, power supply and optional features in the technical proposal.
Can I view an instrument demonstration?
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