piezobrush® PZ3 - das weltweit kleinste Plasma Handgerät mit PDD Technologie®
piezobrush® PZ3

piezobrush® PZ3

Effective plasma handheld device for manual use

Piezobrush® PZ3 has been designed as a compact plasma handheld device for use in laboratories, predevelopment and assembly of small series. With a maximum power consumption of 18 W, the Piezoelectric Direct Discharge (PDD®) technology is used to generate cold active plasma at a temperature of less than 50°C. The heart of this portable plasma device is the TDK piezo plasma generator CeraPlas™ – a high-voltage discharge device for generating cold atmospheric-pressure plasma. Plasma is used to increase the surface energy of many materials with high efficiency, as well as to reduce germs and odors.


piezobrush® PZ3
piezobrush® PZ3 with Module Nearfield
piezobrush® PZ3 Plasma discharge


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Fields of application

◊ Joining technology
◊ Development and optimization of production processes
◊ Research facilities and laboratories
◊ Microbiology, microfluidics and food technology
◊ Medical and dental technology
◊ Prototype and architectural model making
◊ Small-scale production

Possible use cases

◊ Activation and functionalization of surfaces of various materials
◊ Improvement of wettability
◊ Optimization of bonding, painting, printing and coating processes
Surface treatment of plastics, glass, ceramics, metals, semiconductors, natural fibres and composite materials
◊ Ultra-fine cleaning and odour reduction

The table below shows the surface energy of different plastics. In each case, the surface energy is shown after treatment with the piezobrush® PZ3, the plasmabrush® PB3 (plasma high-performance system) and without prior plasma treatment.

Surface energy of plastics before and after plasma treatment

Technical data piezobrush® PZ3

  • Electrical connection: 110-240 V / 50-60 Hz
  • Power consumption: max. 18 W
  • Weight: 110 g
  • Design: Handheld unit with plug-in power supply, integrated fan
  • Sound pressure level: 45 dB
  • Plasma temperature: < 50 °C
  • Treatment speed: 5 cm²/s
  • Typical treatment distance: 2 – 10 mm
  • Typical treatment width: 5 – 29 mm


Different surfaces have to be activated with the appropriate accessories to achieve an ideal result. Currently two different modules are available for the piezobrush® PZ3 plasma handheld device. The PDD technology used to generate the cold plasma in piezobrush® PZ3 is based on the discharge of high electric fields. Therefore, the electrical conductivity of the component to be treated is of decisive importance when choosing the modules.

Module Standard

piezobrush® PZ3 Module Standard for the treatment of non-conductive surfaces

This module is designed for the surface treatment of non-conductive substrates such as plastics, ceramics or glass. For effective treatment, a module-to-substrate distance of 1 to 5 mm is recommended. If uncontrolled arcing occurs on the substrate during use, the device switches off automatically. In this case the surface is at least partially conductive and should therefore be treated with the module Nearfield.

Module Nearfield

piezobrush® PZ3 - Modul Nearfield

This module is used to treat (partially) electrically conductive materials such as metals, CFRP, indium tin oxide or conductive plastics. However, this module may also be necessary for the ideal treatment of materials with conductive coatings or assemblies with conductive components. With this module, the plasma only ignites when it is close enough to a conductive surface (this may also be hidden under a thin insulating layer). At a distance of a few millimeters, a violet glow is visible in the gap between module and substrate indicating that the treatment is being performed.

The device automatically detects which module is currently in the device and automatically adjusts the parameters accordingly.


For process control of plasma treatment, the piezobrush® PZ3 is equipped with various features that can be selected and modified via the display.

  • Process control
    ◊ Stopwatch: For monitoring the treatment time
    ◊ Countdown: Time setting with automatic switch-off function
    ◊ Metronome: Acoustic feedback after defined treatment time
  • Power adjustment: Reduction of plasma power in several increments

Display piezobrush® PZ3 for process control

piezobrush® PZ2 vs. piezobrush® PZ3

The piezobrush® PZ3 is designed as successor of the piezobrush® PZ2. The table gives an overview of the respective advantages of the two devices.

piezobrush® PZ2

  • Handheld device with power supply
  • Changeable nozzles
  • No process control available
Piezobrush PZ2 als Leihgerät testen

piezobrush® PZ3

  • Handheld device with power supply
  • Changeable piezo module
  • Processcontrol with:
    Stopwatch, Countdown, Metronome
piezobrush® PZ3
110-240 V / 50-60 Hz
max. 30 W
170 g
57 dB
< 50 °C
4 cm²/s
2 – 10 mm
20 mm
Standard, Nearfield
Multigas / Needle
Argon, helium and nitrogen

Electrical connection
Power consumption
Sound level
Plasma temperature
Treatment speed
Typical treatment distance
Max. treatment width
Standard modules
Special modules
Operating mode with inert gas

110-240 V / 50-60 Hz
max. 15 W
110 g
45 dB
< 50 °C
5 cm²/s
2 – 10 mm
29 mm
Standard, Nearfield
available Q1/2021
available Q1/2021

You want to have more information about the piezobrush® PZ2.

Technology – Plasma handheld with Piezo Technology

In order to provide products having convincingly compact dimensions, we developed the PDD® Technology. PDD stands for piezoelectric Direct Discharge. It is based on the direct, electric discharge at an openly operated piezoelectric transformer (PT).

By means of PDD® Technology, low input voltage is transformed. This results in high electric field strengths. The ambient process gas – typically air – is dissociated and ionized.

The advantages of direct discharge control are obvious: The excitation of gas molecules is highly efficient and safe. Furthermore, the power density of the compact device is extremely high. In practice, a processing performance level is now achieved that had previously been possible only by means of considerably larger installations. This is the ideal device for manual applications in laboratories, medical technology, in commerce and in industry.

The piezobrush® has been conceived for application by end-users. Here, relyon plasma has paid particular attention to usability and user-friendliness. The piezobrush® requires no specialist, technical knowledge and no complex infrastructure.

The CeraPlas F plasma generator, from TDK Electronics, is a direct high-voltage discharge component for plasma generation, forms the heart of the plasma handheld. The piezoelectric RF plasma generator offers a high ionization rate and an effective ozone generation rate as well as multigas ignition, low power consumption and no magnetic fields.

piezobrush® PZ3 as loan unit

Would you like to test the piezobrush® PZ3 plasma handheld? No problem – our piezobrush® PZ3 is also available on loan. We will send you the piezobrush® PZ3 for a rental fee and you can test the tool directly on your premises in your individual working environment. If the piezobrush® PZ3 convinced you during the test phase, we will of course credit the rental fee to the purchase price. Otherwise, you can simply return the rental unit to us at the end of the test phase.



  • DateDescriptionLanguageDownload
    2022Comparison piezobrush® PZ2 and piezobrush® PZ3ENFlyer
    2020Whitepaper: Operation Principle and CharacteristicsENWhitepaper
    2021Whitepaper: Ozone controlENWhitepaper
    2021Flyer - piezobrush® PZ3 in the dental labENFlyer

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