YM-1 Metallographic Sample Pre-grinder

YM-1 Metallographic Sample Pre-Grinder: The Secret to Faster, Smoother Polishing‌

‌Before polishing comes precision grinding – and the YM-1 Pre-Grinder cuts sample prep time in half. Designed for metallurgical labs, its ‌vacuum-driven abrasive paper system‌ (no adhesives!) and 900 RPM motor ensure flawless surfaces, so your polisher can work its magic faster. Compact, lightweight (22kg), and built for daily use.

‌Key Features‌

• ‌Vacuum Paper Lock‌: Centrifugal force holds abrasive paper firmly – no glue, no mess. Just swap discs in seconds.
• ‌Pre-Polishing Power‌: 900 RPM motor + 230mm grinding disc smooths even the toughest alloys and ceramics.
• ‌Lab-Space Friendly‌: At 460×340×330mm, it fits cramped workspaces without sacrificing stability.
• ‌Zero Downtime‌: YS7118 motor (0.2kW, 380V) runs cool and quiet for 8-hour shifts.
• ‌Water-Cooled Grinding‌: Built-in water flow prevents overheating and extends abrasive life.

‌Technical Specs Table‌

Parameter	Specification
Grinding Disc Diameter	230mm
Abrasive Paper Size	230mm
Speed	900 RPM
Motor	YS7118, 0.2kW, 380V, 50Hz
Dimensions	460×340×330mm
Weight	22kg

‌Why Labs Love the YM-1‌

• ‌2x Faster Prep‌: Perfectly flat samples mean less time spent polishing.
• ‌No Adhesive Residue‌: Vacuum system keeps workstations clean and safe.
• ‌ISO-Ready‌: Consistent results for aerospace, automotive, and metallurgy certifications.

During the metallographic sample preparation, pre-grinding is the essential former procedure before polishing. The pre-grinding enhances greatly the efficiency of the sample preparation. YM-1 is designed according to the customers’ requests and adapted to various kinds of materials. The size of the disc and the transmission power are larger than the same products in the market, which is the ideal equipment for pre-grinding. Working principle: the water flows into the rotating grinding disc through the water tube, and then the water below the abrasive paper flows out under the centrifugal force of the rotating disk, which generates a vacuum space and presses the abrasive paper on the disc tightly to do the pre-grinding work. When the disc stops rotating, the effect disappears and the abrasive paper can be easily taken off.

Main Parameters:

Grinding Disc Diameter	230mm
Abrasive Paper Diameter	230mm
Rotating Speed	900r/min
Electromotor	YS7118, 0.2kw, 380V, 50Hz
Dimensions	460×340×330mm
Weight	22kg