Metallographic sample grinding polishing machine MoPao®3

for sample preparationfor metalographic laboratoriesradius grinding

Overview
The MoPao®3 is a single‑disc benchtop automated grinding and polishing machine designed for metallographic sample preparation according to international standards. It uses microprocessor control with stepless speed adjustment for both the disc and the polishing/grinding head, and provides intuitive settings for loading force and process time. Operators perform sequential grinding and polishing by changing discs or abrasive media, enabling a wide range of sample workflows suitable for industrial, research and laboratory environments.

Key features

• Single‑disc benchtop configuration with quick‑change disc replacement
• Microprocessor control: stepless speed for head and stepless or selectable fixed speeds for disc
• Disc rotation selectable clockwise or counterclockwise
• Multi‑sample holder with pneumatic single‑point loading (standard 6 samples)
• Optional automatic abrasive delivery (liquid dispenser)
• Water cooling and abrasive‑removal spray nozzles to control sample temperature and remove debris
• Cast‑aluminum base and fiberglass‑reinforced plastic housing with stainless‑steel standard components for rigidity and corrosion resistance

Main technical specifications

• Grinding/polishing disc diameter: φ250 mm (optional φ203 mm or φ300 mm)
• Disc rotational speed: 50–1000 r/min, adjustment step 20 r/min; preset speeds: 150 / 300 / 600 / 1000 r/min
• Disc rotation direction: adjustable clockwise or counterclockwise
• Polishing/grinding head speed: 50–150 r/min (stepless)
• Loading range: 5–60 N
• Sample capacity: 6 samples (standard)
• Sample preparation time: 0–995 s
• Specimen diameter: Φ30 mm standard; optional Φ22 mm, Φ25 mm, Φ40 mm
• Compressed air: 0.6–0.9 MPa
• Input voltage: Single‑phase AC 220 V 50 Hz
• Input power: 1.1 kW
• External dimensions: 596 × 715 × 730 mm
• Net weight: 98 kg; Gross weight: 125 kg

Consumables included

• Adhesive‑backed metallographic abrasive paper, 240# — 20 pieces
• Adhesive‑backed metallographic abrasive paper, 400# — 20 pieces
• Adhesive‑backed metallographic abrasive paper, 800# — 20 pieces
• Adhesive‑backed metallographic abrasive paper, 1200# — 20 pieces
• Adhesive silk velvet pad — 3 pieces
• Adhesive wool fabric pad — 3 pieces
• Magnetic rubber pad — 1 piece
• Anti‑stick trays — 5 pieces
• Diamond suspension grinding and polishing fluid W2.5 500 ml — 1 bottle
• Diamond spray polishing agent W2.5 350 ml — 1 bottle

Notes
Optional accessories and configurations (e.g. liquid dispenser, different disc sizes, alternative sample holders) are available on request. Final configuration and supplied items are confirmed at order placement.