Atmospheric pressure plasmaPlasmaBeam STANDARD
Partial plasma surface treatment in manufacturing
The PlasmaBeam STANDARD system enables plasma surface treatment of approximately 8–12 mm and is operated either manually or semi-automatically.
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Precise surface pretreatment using atmospheric plasma
Atmospheric pressure plasma offers a wide range of applications. The systems are primarily designed for the localised pre-treatment of a wide variety of surfaces, for example for cleaning and activating polymers, metals, ceramics, glass and hybrid materials. Thanks to the unique design of the PlasmaBeam STANDARD from Diener electronic, the plasma system is robot-compatible and can be integrated into existing automated production lines.
The atmospheric plasma processor for surface cleaning and activation is used in many industrial sectors, e.g. in plastics technology, the automotive industry, 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.
The STANDARD nozzle on the plasma generator
The principle of the atmospheric plasma system PlasmaBeam STANDARD comprises the basic components: the power supply unit and the plasma generator. The plasma generator receives the high-voltage and process gas supplies from the power supply unit via a supply line. An arc discharge is initiated between the high-voltage electrodes in the plasma generator. The plasma generated is discharged via the STANDARD plasma nozzle.
The PlasmaBeam STANDARD from Diener electronic is fitted with the standard plasma generator. The plasma nozzle achieves a treatment width of approx. 8–12 mm at high speed – ideal for activating the adhesive joint prior to bonding.
To ensure effective surface treatment with atmospheric plasma systems, it is important to note the following: the treatment must always be carried out whilst the workpiece is in motion!
Mounting the STANDARD plasma generator
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 STANDARD to ensure the plasma generator is securely fixed in place.
Targeted, localised 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 STANDARD 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 enables the functionalisation of components without the use of 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, which also contributes to the principle of sustainability.
Manual / Semi-automatic control
In manual mode, the PlasmaBeam STANDARD atmospheric pressure system from Diener electronic is controlled via the 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 STANDARD) built into the unit.
Remote connection – SUB-D connector
The PlasmaBeam STANDARD 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 for the PlasmaBeam STANDARD. 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. We at Diener electronic would be happy to advise you on the automation of surface treatment.
Technical data
Housing dimensions
Tabletop
Control unit
Manual control
Semi-automatic control
Dimensions Plasma nozzle
⌀ 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: 2 m³/h
Generator
40 kHz | Power output 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
What are the main benefits of activation using atmospheric pressure plasma?
PlasmaBeam technology is suitable for in-line processes, e.g. plasma activation of continuous rubber profiles and hoses prior to printing, bonding, flocking or coating.
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 activation without the need for masking – the remaining surface areas are not affected.
What is the treatment range for the PlasmaBeam STANDARD systems?
The treatment width for the PlasmaBeam STANDARD 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 STANDARD system?
When installing the PlasmaBeam STANDARD, 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 STANDARD?
The machining speeds for the PlasmaBeam STANDARD 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 STANDARD produce any exhaust fumes?
Yes, in this PlasmaBeam STANDARD, 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 STANDARD?
Virtually all solid materials, with the exception of thin polymer films and fluorinated polymers, can be electronically activated using Diener electronic’s PlasmaBeam STANDARD.
Which gases are typically used in the PlasmaBeam STANDARD?
Compressed air is the most cost-effective option. The PlasmaBeam STANDARD 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 STANDARD operate continuously, for example for 4–5 hours on the production line?
The PlasmaBeam STANDARD 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 STANDARD?
The PlasmaBeam STANDARD 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 STANDARD model?
The PlasmaBeam STANDARD 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.
Are exhaust air filters required for the PlasmaBeam STANDARD?
Yes, all systems must be connected to a proper exhaust system, regardless of the type of gas used. Nitrogen oxides, exhaust gases, fine oil mist (from oil pumps), etc. are produced, which must not be inhaled; furthermore, the gases are often acidic, meaning they accelerate the rusting of surrounding parts, machinery and equipment.
