Atmospheric pressure plasmaPlasmaBeam DUO
Partial plasma surface treatment in manufacturing
With our atmospheric plasma surface treatment system PlasmaBeam DUO, you can use two nozzles to prepare your components perfectly for the following processes.
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Simultaneous surface pretreatment at two points using atmospheric plasma
Atmospheric pressure plasma offers a wide range of applications. The PlasmaBeam DUO is ideally designed for the localised pretreatment of a wide variety of surfaces, such as the cleaning and activation of polymers, metals, ceramics, glass and hybrid materials. Thanks to its unique design, the PlasmaBeam DUO from Diener electronic is suitable for use with robots and can be integrated into existing automated production lines. Thanks to its two atmospheric pressure plasma nozzles, it offers the option of treating substrates either across a double treatment width or in parallel at two different locations.
The atmospheric plasma processor PlasmaBeam DUO for surface cleaning and activation is used in many industrial sectors, e.g. in plastics engineering, the automotive sector, electrical engineering, elastomer technology, precision engineering, small-batch production, microsystems technology, medical technology, solar cell technology, research and development, as well as semiconductor technology and optics.
Cleaning
The Atmospheric pressure plasma system PlasmaBeam DUO offers a wide range of applications for the local ultra-fine cleaning of polymers, metals, ceramics and glass. This process breaks down molecular residues of contamination.
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Activation
Atmospheric pressure plasma is a highly efficient process for locally improving the adhesion of various substrates prior to painting, gluing, printing or bonding. Plasma activation using the Atmospheric pressure plasma PlasmaBeam DUO system creates polar bonding partners and increases the surface energy.
The STANDARD nozzle on 2 plasma generators
The atmospheric plasma system PlasmaBeam DUO comprises two basic components: the power supply unit and the plasma generator. The plasma generator receives the high-voltage power and the process gas supply from the power supply unit via a supply line. An arc discharge is initiated between high-voltage electrodes within the plasma generator. The plasma generated is discharged via the STANDARD plasma nozzle.
The PlasmaBeam DUO from Diener electronic is fitted with two STANDARD plasma generators. Each plasma nozzle achieves a treatment width of approx. 8–12 mm at high speed – ideal for activating the adhesive joint prior to bonding.
For effective surface treatment with atmospheric plasma systems, the following is important: the treatment should always be carried out whilst the workpiece is in motion!
Mounting of two or more plasma generators
As either the workpiece being processed or the plasma generator is in motion, the plasma generator must be permanently installed. On request, Diener electronic supplies task-specific mountings for the PlasmaBeam DUO to ensure the plasma generator is securely fixed in place.
Targeted, partial surface activation using PlasmaBeam
Atmospheric pressure plasma is a technical plasma that is excited at normal ambient pressure. The process gas is usually purified, dry compressed air, although pure oxygen or nitrogen may also be used. Excitation is achieved via a high-voltage gas discharge. Due to the short mean free path of the particles at atmospheric pressure, the plasma is spatially confined.
Consequently, the atmospheric pressure plasma in the PlasmaBeam DUO from Diener electronic is always partial, enabling targeted activation of the surface exactly where it is required.
Free from Volatile Organic Compounds
Plasma surface treatment is the key approach to VOC-free (Volatile Organic Compounds) manufacturing. It functionalises the component without the need for wet chemical processes such as solvents or primers. The environmentally harmful use of chemicals, rinse water and drying times is virtually eliminated, thereby conserving resources. Thanks to the process stability, the scrap rate can be reduced, thereby also contributing to the principle of sustainability.
Manual / Semi-automatic control
In manual mode, the PlasmaBeam DUO atmospheric pressure system from Diener electronic is controlled via controls on the front panel. In semi-automatic mode, it is controlled via a SUB-D connector on the rear panel. Automatic process monitoring is provided by the plasma current, gas pressure and gas flow controls (depending on the PlasmaBeam DUO) built into the unit.
Remote connection – SUB-D connector
The PlasmaBeam DUO atmospheric pressure plasma systems can be controlled via the remote connection. The external PC control unit for your production line can activate the plasma ON/OFF function and read the system status (‘Plasma ON / OFF / Ready’).
In the PlasmaBeam PC version, the remote control works in the same way as with the PlasmaBeam DUO. However, it offers the added benefit of error message transmission.
For all versions of the PlasmaBeam with PC control, a Profinet connection is available on request. Please do get in touch with us. Here at Diener electronic, we’d be happy to advise you on the automation of surface treatment processes.
PlasmaBeam DUO for continuous objects
Thanks to the intensive plasma activation at high speed, it is possible to feed ‘almost’ continuous objects through the atmospheric-pressure plasma generator. It is the product, not the plasma generator, that moves. This means that the PlasmaBeam DUO from Diener electronic can be used to treat continuous rubber or metal profiles, tubes or hoses.
Technical data
Housing dimensions
Tabletop
Control unit
Manual control
Semi-automatic control
Dimensions Plasma nozzle
Quantity: 2
⌀ 32 mm xD 210 mm
Weight: 1.0 kg
Cable length: 3 m
Treatment width
approx. 8 - 12 mm
Process and cooling gas
Dry, oil-free compressed air
Inlet pressure: 5 - 8 bar
Gas consumption: 4 m³/h / nozzle
Generator
40.00 kHz | Power output 2 x 300 W
Gas supply
6 mm quick-connect bulkhead fitting
Power supply
230 V | 16 A
Technical changes reserved.
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FAQ Frequently Asked Questions
Can the two nozzles on the PlasmaBeam DUO be controlled individually?
No, the nozzles in the DUO version can only be controlled simultaneously.
What are the main benefits of treatment with atmospheric pressure plasma?
PlasmaBeam technology is suitable for in-line processes, e.g. plasma cleaning of continuous metal profiles and tubes prior to coating, gluing, bonding or painting.
This technology is suitable for use with robots, i.e. the 2- or 3-dimensional surfaces can be scanned with the plasma beam using robots.
PlasmaBeam enables localised surface cleaning without the need to mask the remaining area; for example, cleaning Al, Au and Cu bond pads prior to wire bonding without coming into contact with the rest of the surface.
What is the treatment range for the PlasmaBeam DUO systems?
The treatment width for the PlasmaBeam DUO systems from Diener electronic is between approx. 8–12 mm per nozzle. However, the cleaning width must be checked in advance for each application (e.g. by measuring the contact angle). When using pure oxygen (O₂) or nitrogen (N₂), the treatment width is slightly increased.
What is the recommended distance between the nozzle and the surface for the PlasmaBeam DUO system?
When installing the PlasmaBeam DUO, we recommend that you do not exceed a distance of 12 mm when using compressed air. The optimum speed is in the range of approximately 5–7 mm, but may vary depending on the distance.
What processing speeds are possible with the PlasmaBeam DUO?
The machining speeds for the PlasmaBeam DUO range from approx. 10–20 mm/s (for metals) up to several metres per second (for folding carton processing). Speeds of approximately 150–400 mm/s are often used.
Does the PlasmaBeam DUO produce any exhaust fumes?
Yes, in this PlasmaBeam DUO, the plasma is generated using compressed air or nitrogen in an electrical discharge. This primarily releases nitrogen oxides (NO and NO₂). A smaller quantity of carbon-containing exhaust gases is, of course, also possible (CO₂, CO). The system must be equipped with an effective exhaust air system!
Which materials can be activated using the PlasmaBeam DUO?
Virtually all solid materials, with the exception of thin polymer films and fluorinated polymers, can be electronically activated using Diener electronic’s PlasmaBeam DUO.
Which gases are typically used in the PlasmaBeam DUO?
Compressed air is the most cost-effective option. The PlasmaBeam DUO system from Diener electronic can be used with pure nitrogen or even with forming gas (N₂/H₂) up to a maximum H₂ concentration of XX per cent.
Can the PlasmaBeam DUO operate continuously, for example for 4–5 hours on the production line?
The PlasmaBeam DUO system from Diener electronic is designed for continuous operation and often runs non-stop for several hours during production.
Is it problematic to treat electronic components using the PlasmaBeam DUO?
The PlasmaBeam DUO from Diener electronic operates on the so-called ‘remote plasma’ principle, and the electrical discharge does not, as a rule, come into contact with the surface at all.
How can the cleaning quality of atmospheric plasma be described in relation to the PlasmaBeam DUO model?
The PlasmaBeam DUO from Diener electronic can remove very thin, trace-like organic contaminants. For heavier contamination (e.g. oil stains, drops, layers of paint), we recommend pre-cleaning using other methods.
