Automatic Metallographic Sample Grinding and Polishing Machine
MoPao-3
The MoPao® Model 3 automatic grinding and polishing machine is a single-disc benchtop unit—a next-generation, high-precision, automated sample-preparation system manufactured in accordance with international standards and employing state-of-the-art manufacturing technologies.
This machine is equipped with a microprocessor control system that enables stepless adjustment of the rotational speeds of the grinding and polishing discs and heads, as well as intuitive and convenient setting of sample preparation pressure and duration. Operators can complete the grinding and polishing processes simply by changing the grinding/polishing disc or the abrasive paper and fabric, thereby enhancing the machine’s versatility. The equipment features freely selectable rotation directions for the grinding/polishing discs, quick-change disc replacement, a multi-sample holder with pneumatic single-point loading, and automatic abrasive delivery (with an optional liquid dispenser). It also boasts smooth operation, high safety and reliability, low noise, and a cast-aluminum base that enhances rigidity during grinding and polishing. Additionally, the machine is fitted with a water-cooling system and abrasive-removal spray nozzles, which cool the specimen during grinding to prevent overheating from damaging the metallographic structure and continuously flush away abrasive particles; paired with a fiberglass-reinforced plastic housing and stainless-steel standard components, it offers an aesthetically pleasing appearance, improved corrosion and rust resistance, and easy cleaning. The MoPao®3 automatic grinding and polishing machine is designed for automated preparation of metallographic specimens through coarse grinding, fine grinding, and coarse-to-fine polishing, making it an ideal sample-preparation instrument for industrial enterprises, research institutions, and laboratory facilities at colleges and universities.
II. Main Technical Specifications
|
Grinding and polishing disc diameter
|
φ250mm (customizable to φ203mm or φ300mm)
|
|
Polishing pad rotational speed
|
50-1000r/min, adjustment increment 20rpm, 150r/min, 300r/min, 600r/min, 1000r/min (four-stage fixed speed)
|
|
Grinding and polishing pad steering
|
Adjustable clockwise or counterclockwise
|
|
Adjustable clockwise or counterclockwise
|
50–150 r/min (stepless speed regulation)
|
|
Loading range
|
5–60 newtons (N)
|
|
Number of samples
|
6 (standard)
|
|
Sample preparation time
|
0–995 seconds (s)
|
|
Specimen diameter
|
Φ30mm (standard), with custom options available for Φ22mm, Φ25mm, Φ30mm, and Φ40mm.
|
|
Compressed air pressure
|
0.6–0.9 MPa
|
|
Input voltage
|
Single-phase AC 220V 50Hz
|
|
Input Power
|
1.1KW
|
|
External dimensions
|
596×715×730mm
|
|
Net weight
|
98kg
|
|
Gross weight
|
125kg
|
III. Details of Consumable Gifts
|
Serial Number |
Name |
Unit |
Quantity |
Remarks |
|
1 |
Adhesive-backed metallographic sandpaper |
piece |
20 |
240# |
|
2 |
Adhesive-backed metallographic sandpaper |
piece |
20 |
400# |
|
3 |
Adhesive-backed metallographic sandpaper |
piece |
20 |
800# |
|
4 |
Adhesive-backed metallographic sandpaper |
piece |
20 |
1200# |
|
5 |
Silk velvet with adhesive backing |
piece |
3 |
|
|
6 |
Woolen fabric with adhesive |
piece |
3 |
|
|
7 |
Magnetic rubber pad |
piece |
1 |
|
|
8 |
Non-stick tray |
piece |
5 |
|
|
9 |
Diamond Suspension Grinding and Polishing Fluid |
bottle |
1 |
W2.5 500ml |
|
10 |
Diamond Spray Polishing Agent |
bottle |
1 |
W2.5 350ml |
