1.5kw ER11 Air Cooled Spindle Motor, VFD, Spindle bracket


  • 220vAC 1.5kw ER11 Air Cooled Spindle Motor 65mm 4 bearings
  • 220v 1.5KW QL Inverter / VFD
  • 65mm spindle bracket

12 in stock


 Product Package:

  • 220vAC 1.5kw ER11 Air Cooled Spindle Motor 65mm 4 bearings
  • 220v 1.5KW QL Inverter / VFD
  • 65mm spindle bracket

1.5kw Air cooled Spindle

1.5kw ER11 Air Cooled Spindle Motor



Check out : ER16 Spindle

Basic parameters of 1.5kw Air cooled Spindle:

  • Size: 65 x 204mm (Body diameter:65mm; Length:204mm)
  • Speed Ways: Through 3-phase output inverter and adjust the inverter frequency to change the spindle speed.
  • Cooling: Air cooling
  • Power Interface: Optional H17-4 pins waterproof air plug. The air plug marked “1 “,”2″,” 3″,” 4″, “1 “,”2 “,”3” were connected to inverter (U, V, W), 4 connected inverter ground. (Pay attention! our spindle “4” connecting to GND, promised personal safety!!)
  • Power: 1.5kw (1HP=0.735kw)
  • Voltage: 220vAC (If you need 110v/380v spindle, please leave message to us, thank you)
  • Current: 6A
  • Frequency: 0-400Hz
  • Speed: 0-24000rpm
  • Runout Off: 0.01mm
  • Bearing Type: 2X7002C P4 DT and 2X7002C P4 DT
  • Full sealed angular contact bearings
  • Collet: ER11
  • Clip Knife diameter: 7mm,6.35mm,6mm,5mm,4mm,3.175mm,3mm,2mm,1mm
  • Air Cooling ER11 collet chunk
  • Grease Lubrication

Main Application of 1.5kw Air cooled Spindle:

Engrave for wood, bamboo, normal PCB, PVC, PMMA, plastic, duotone board(ABS)and etc non-metal, also can engrave on gold, silver, copper, aluminium, Pb etc soft metal surface working.

1.5kw ER11 Air Cooled Spindle Motor




  • P4 fully sealed angular contact bearings ,2×7002 P4 DT &2×7002 P4 DT, Increase spindle life.
  • Longer length makes the torque bigger, more powerful.
  • Careful assembly make the spindle more precision.
  • Precision 0. 01mm.Coaxial degree less than 0.0025mm
  • Shipment within 4 days, promise the delivery time.
  • We are the spindle manufacturer; we offer only best quality and best price to you.
  • Pay attention: The spindle size is 65 x 204mm mm, bigger torque.
  • The voice of the spindle is extremely low, almost no vibration.

Difference between ceramic ball bearings and Steel ball:

1.5kw Air cooled Spindle ceramic ball bearings

  • Bearing is P4 grade,2×7002C P4 DT &2×7002C P4 DT, increase spindle life.
  • Low vibration, low noise and high torque.
  • High precision, runout off less than 0. 01mm.Coaxial degree less than 0.0025mm
  • Shipment within four days, there is no fake tracking number, make sure that you receive time.
  • We are the spindle manufacturer, we offer only best quality and best price to you


Inverter / VFD:

1.5kw Air cooled Spindle 1.5KW inverter

Basic Parameters:

  • Power: 1.5kw
  • Input Voltage: 220v (±20%)
  • Input Phase: 1 or 3 phases
  • Input Frequency: 50-60Hz (±5Hz)
  • Output Voltage: 220v
  • Output Phase: 3 phases
  • Output Current: 7A
  • Output Frequency: 0-1000Hz
  • Control Method: V/F control; Open-loop flux vector control

1.5kw Air cooled Spindle 1.5 KW inverter


  • Two speed control modes: no PG vector control (SVC), V/F control
  • No PG vector control (SVC): starting torque 0.5Hz up to 150%
  • 8-stage simple PLC function, multi-speed control and PID control
  • Support multiple frequency settings: digital setting, analog setting, PID setting, RS485 communication setting
  • I/O terminals can be freely programmed to combine multiple working modes according to user needs.
  • With jump frequency control function, it can effectively suppress mechanical resonance and make the system more stable and reliable.
  • With instantaneous power-down retention function, it can avoid the impact of production due to instantaneous power failure
  • With over torque and under torque detection
  • Automatic voltage adjustment function to effectively solve the low frequency oscillation problem of high-power motor
  • Provide a variety of fault protection functions: over-current, over-voltage, under-voltage, over-heat, overload, lack of equal real-time monitoring and protection to ensure safe operation
  • Built-in reactor with inverter above 37kW, which improves the power factor of the input side and improves the efficiency and stability of the whole machine.
  • 0.75~15kW built-in braking unit.


winding machine, mixer, extruder, slitter, winder, compressor, ventilator, pump, grinder, conveyor, elevator, centrifuge and other speed control machines.

Spindle bracket:

1.5kw ER11 Air Cooled Spindle bracket



  • Cast aluminium fixture is high quality aluminium, which is casting with a special manufacturing process, compared with ordinary aluminium, this product has toughness, strong shock resistance, high hardness and strong antioxidant activity.
  • Cast aluminium fixture is mainly used for fixation of ancillary products, thereby ensuring the verticality of balancing and ancillary products, ancillary products to improve running accuracy, reduce noise, reduce the accumulated error.


Basic Parameters:

  • Diameter: 65mm
  • Material: Cast Aluminium



  • Compared with the aluminium profile fixture, the accuracy is much higher, and it is hard to deform.
  • Inner wall is smooth, outer walls is sandblasted, relatively fine uniform, but not smooth.
  • Cast aluminium fixture is much heavier than aluminium profile fixture.

spindle features

spindle connections

inverter function

Inverter function

Preparations before use:

  • Spindle working environment temperature is usually -10 ~ 40.
  • Before installing the first electric spindle axis head turned by hand, should feel flexible, non-blocking phenomenon.


Use Correctly:

  • 1.5kw Air cooled Spindle in the preservation and transportation, high-speed grease inside the bearing state will change, customers should be running at low speed for 30 minutes. 3000 rpm and then follow the poor increase, run 20 minutes each. Spindle and the inverter should be working together. The inverter’s specifications and parameter settings need match spindles parameter. (Because of high-speed grease inside the bearing state will change, when you get the spindle, maybe the noise sounds not normal. Please run it 30 minutes or even more, the noise will be normal.)
  • Connect the inverter spindle, three-phase inverter power cord should be soldered in the plug 1 (U), 2 (V), 3 (W) feet, 4 feet for the ground. After the power is turned on, to observe whether the spindle rotation axis indicates the direction consistent. If inconsistency should be immediately shut down, replace the inverter and spindle connected two wires of three-phase power supply.
  • During normal operation, 1.5kw Spindle Motor often encounters the phenomenon of heat, always check whether the air-cooled spindle housing and duct clogging dust. If clogging dust, to promptly clean up. If you do not clean up, it is easily to make the spindle burned.
  • Every day before using the spindle must be running at low speed for 15-20 minutes. Clamping the cutters to spindle, collet nuts, collets, cutters must be clean enough. Shank inserted into the collet must be greater than 15mm.

product package

Care and Maintenance:

  • Spindle frequency power supply connected rated voltage, it should be consistent with the technical parameters of the spindle; speed can be adjusted by changing the frequency, and voltage is proportional to the change.
  • Spindle being not used; spindle appearance should be oiled. Plus, the shaft protection device, put in a dry place.
  • To replace the spindle bearings, certain professional and technical personnel should be replaced. Supporting special tools, bearings should be replaced fully cleaned without removing the stator coils.


Water-cooled spindle and Air-cooled Spindle differences:

  • Cooling in different ways: water-cooled spindle motor uses water cycle to cool the heat generated after the high-speed rotating spindle, whereas air cooled spindle motor uses fan-cooled approach for cooling.
  • Noise: Water-cooled spindle motor is basically no noise, but the air-cooled spindle motor is very loud.
  • Life aspects: Water-cooled spindle motor pay attention to maintenance, frequently changes the water or the use of industrial water coolers, air-cooled spindle fan mainly by the wind blowing the heat transferred to the heat sink, so as to achieve the cooling effect.
  • If you need use for metal, hard wood, granite, stone, you can choose metal spindle, then metal spindle is much better than wood spindle.


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