7.5KW Water-Cooled Spindle Motor 380V Chuck Nut ER32 800Hz D=125mm Constant Torque for CNC Router Metal Engraving

motorPneumatic MotorsSize: 125mm (diameter of the middle body: 125mm)Speed regulation mode: change the spindle speed through the three-phase output inverter and adjust the frequency of the inverter.Cooling method: water coolingPower interface:YD28-4 pin waterproof aviation plug is optional. Aviation plugs marked "1" "2" "3" "4" "1" "2" "3" are connected to the inverter (U V W) and 4 is connected to the inverter land .Power: 7.5kwVoltage: 380vFrequency: 800HzSpeed: 24000rpmNumber of strokes: 2Jump close: less than 0.01mmDiameter (mm): 1254pcs ceramic ball bearings (fully sealed angular contact bearings)Chuck: ER32Grease lubricationMain purpose: engraving iron steel stainless steel aluminum hardwood etc. (this is a high-precision high-torque professional metal spindle)The working environment temperature of the spindle is usually -10~40.Before installing the first electric spindle to rotate the spindle head by hand you should feel flexibility and no blockage.P4 fully sealed angular ceramic bearings can extend the life of the spindle.The longer the length the greater the torque and the greater the power.Careful assembly makes the spindle more precise.Accuracy is 0.01mm coaxial cable is less than 0.0025mm1. Our main shaft uses 4 bearings.2. The bearing is resistant to high temperature and low temperature3. The ball bearing has low friction low noise and long service life.What is labyrinth seal ?There are 4 labyrinth seals in the front section of the main shaft which can prevent the leakage of bearing lubricating oil and the entry of harmful pollutants (dust moisture corrosive gas) and bearing seals under high-speed conditions.Some questions about Metal Spindle1. Why does the customer who ordered said that 12000rpm has no torque and is not easy to u

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