230mm Grinding And Polishing Machinery DC brushless motor with Keyboard

230mm DC Brushless Grinder/Polisher – 4 Samples, 1 Machine, Zero Compromises‌
‌Need to polish 4 alloys at once but stuck with clunky manual gear? This ‌ABS-armored 230mm beast‌ handles steel, titanium, or ceramics with ‌stepless 100-1000 RPM‌ and ‌60N pneumatic pressure‌ – all via a ‌digital keypad‌ even interns can master. Swap discs in seconds (thanks to elastic clamps), set timers up to 99min, and let the ‌65dB hum‌ keep your lab sane. Built for 8-hour shifts, 5 days a week.

‌Key Features ‌

• ‌4-Sample Muscle‌: Fit Φ22/30/45mm holders – prep small batches without crowding.
• ‌Pneumatic Precision‌: 0-60N programmable pressure for delicate or stubborn alloys.
• ‌DC Brushless Power‌: 400W motor – 30% longer lifespan than brushed models.
• ‌ABS Armor‌: Toxic-free coating + spill-proof tray – survives acid drips and coolant spills.
• ‌Lab Whisperer‌: 65dB operation – no earplugs needed.

‌Technical Specs Table‌

Parameter	Details
Disc Diameter	230mm (Fits standard abrasives)
Speed Range	100–1000 RPM (stepless) or 4 fixed speeds
Motor	DC Brushless, 220V, 400W (0.5HP)
Sample Capacity	4 holders (3 sizes)
Max Pressure	60N (adjustable via pneumatic system)
Dimensions	757×623×645mm (Compact for small labs)
Weight	78kg (Heavy-duty stability)

‌Why This Machine Wins‌

• ‌Budget Hero‌: 30% cheaper to run than 1kW industrial grinders.
• ‌Lab Space Savior‌: 230mm disc + 757mm width – fits cramped workspaces.
• ‌No Training Needed‌: Digital keypad > complicated touchscreens.

YMPZ-2 Automatic Metallographic Sample Grinding and Polishing Machine

 In the metallographic sample preparation, pre-grinding, polishing and grinding are the indispensable procedures. This machine is produced with ABS sewage collection plate and cover and is the latest product with a new and beautiful appearance. This machine is controlled by single chip microcomputer, with grinding disc stepless speed regulation and digital tube display. The motor is DC brushless motor and don’t need to replace the brush, used for a long time. The machine is non-toxic painted. Strong large support chassis design ensures the precision rotary balance. Powerful motor brings strong power and efficient grinding and polishing experience. Spindle leak-proof design ensures the bearing almost without damage and the super mute design brings a good experience. It supports for fast disc replacing system, with the use of elasticity. Equipped with the automatic grinding head, it replaces the manual grinding and polishing. And it can set time and rotating speed of grinding head, which improves the grinding and polishing quality and efficiency of samples. This machine can be adapted to various materials preparation of test samples and the two discs operate independently. With low noise, convenient operation, beautiful appearance and safe use, it is the ideal equipment for metallographic sample preparation.

Main Parameters:

Grinding and Polishing Disc Diameter	230mm
Abrasive Paper Diameter	230mm
Rotating Speed	100～1000r/min, stepless; Or four speed 250r/min, 500r/min, 750r/min, 1000r/min
Rotating Direction	Clockwise or Anticlockwise
Electromotor	DC brushless motor, 220V, 400W
Sample Holding Quantity	4 pcs
Sample Holder Specification	Φ22mm, Φ30mm, Φ45mm (choose one)
Pressure Method	Single pneumatic pressure
Pressure Force	0~60N
Rotating Speed of Grinding Head	20~120r/min, stepless
Time Setting	0~99min
Electromotor of Grinding Head	Stepper motor, 26V
Dimensions	757×623×645mm
Weight	78kg