Single Wheel Abrasive Grinding Machine Pre-grinder with Water Inlet

YM-1 Pre-Grinding Machine – The Fast, Clean Start to Perfect Polishing‌
‌Why waste hours prepping samples? The YM-1’s ‌water-powered vacuum system‌ grips abrasive paper tightly while grinding – and releases it instantly when you stop. With a ‌230mm disc‌, ‌900 RPM speed‌, and a ‌22kg lightweight frame‌, it’s the easiest way to prep steel, ceramics, or alloys for polishing. Perfect for small labs that hate cluttered workflows and messy setups.

‌Key Features ‌

• ‌Water Magic‌: No clamps or adhesives – water creates a vacuum to hold abrasive paper in place.
• ‌Compact & Quiet‌: Smaller than a microwave (460×340×330mm) and quieter than a coffee grinder.
• ‌380V Muscle‌: Handles tough materials without overheating.
• ‌Zero Tools Needed‌: Swap abrasive paper in seconds – just lift and replace.
• ‌Spill-Proof Design‌: Water flows through the disc, keeping your workspace dry.

‌Technical Specs‌

Parameter	Details
Disc Diameter	230mm (Fits most standard papers)
Speed	900 RPM (Ideal for fast material removal)
Motor	YS7118, 0.2kW, 380V, 50Hz
Dimensions	460×340×330mm (Fits cramped labs)
Weight	22kg (Move it anywhere)

‌Why YM-1 Stands Out‌

• ‌No Adhesive Residue‌: Competitors use glue or tape – the YM-1’s water system leaves no sticky mess.
• ‌Time Saver‌: Spend 5 minutes pre-grinding instead of 15.
• ‌Beginner-Friendly‌: New technicians can learn it in 2 minutes.

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