There are no instructions with the unit, how do i install the ptfe plastic pieces and why do we need them?

Hi, dear friend, please kindly check the product page, the user manual could be uploaded now. Or we could send you the electronic edition. The white teflon parts are the spare parts for the probe inside if the internal one may be wearing out the most, please kindly check this video of how to change the teflon parts by the holder.

For the 110V version: 1. What is no-load (operating in air) current draw at maximum speed? 2. What is maximum power?

Hi friend, the no-load current draw of the 110v machine at max speed(20000-22000) is 2A. The max power is 220W.

After about one year of use, the machine is making a loud noise--it sounds like perhaps it needs oil/grease? Is this part of regular maintenance?

Dear friend, it means the carbon brush of the motor is worn out, and the motor needs to be replaced. But because the motor is not easy to replace, it is recommended to replace the entire machine head. Please kindly open the motor cover and take a picture of the motor inside. You could send the picture to us and we will let the technician have a check.

MXBAOHENG High Speed Homogenizer Lab Disperser Emulsifier 5~1000ml Speed Adjustable 6000~22000rpm w/ 2 Working Heads (110V)

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