Ionisation systems - Import export

The majority of plastics used today are very susceptible to the formation of electrostatic charges on the surface. The result of this is that the surfaces are strongly attractive to particles floating in the surrounding air. These adhering particles must be removed before painting. Dirt is difficult to remove from three-dimensional or structured surfaces using conventional methods. Components such as goods carriers, which are used continuously in circulating operation, are usually also difficult to clean on account of their geometry. The dynamic ionisation station has been developed especially for these applications. The goods carriers with the three-dimensional workpieces usually pass through the ionisation station standing on, or suspended from conveyor systems. Ionisation electrodes installed in the inlet and outlet generate positively and negatively charged ions, which are transported by the flow of air to the plastic surfaces. The static surface charges are neutralised as a result. The rotary cleaning nozzles located in-between remove adhering particles from the surfaces of the workpieces using cleaned compressed air. Dust and material particles are blown away by a pulsating air flow from different directions due to the rotation of the nozzles. This highly effective method enables even dirt on shaped parts to be cleaned off reliably. The particles cleaned off in this station are fed to a filtered extraction device by targeted air guidance.

HELIO®Clean 3 is a combined conveying-/ mixing-/ and dedusting device for virgin material and regrind. The dust is removed through a 3-stage dedusting system with ionisized air. The compact design makes it ideal for mounting on the feed zone of the processing machine or on a drying container. Available in 1- or 2-component version, filling is carried out by the integrated compressed air conveying technology with Venturi suction lance(s). Dedusting capacity up to 25 kg/h. Quality: Dust in granules causes lowered mechanical properties of technical plastic resins, leads to problems with surface finish in case of transparent parts, to high rate of rejects basing on smudges or white/black dots in transparent injection moulding parts like for example optical lenses of PC and PMMA. Professional cleaning of resins brings the quality to the original state again and optically perfect parts can be produced.

Dust removal devices remove adhering dust particles from the workpieces by means of rotating blowing nozzles. The use of ionisation units enables the removal of electro-static charges from the plastic surface, which promote the adhesion of dust. In order to improve operation, the ionisation unit is combined with a dust removal/blow-off device. In the wood sector, this is generally integrated in the line without ionisation unit or installed directly downstream of a brush sanding/denibbing machine. We offer various dust removal/ionisation systems, according to the requirements of your production process. The COMFORT and PERFECT versions are additionally equipped with a rotating genuine hair brush to remove soiling from the surface. We would be please to provide more detailed information concerning the equipment features upon request.

The VEN BRUSH system technology is based on high pressure at low speed. Special hold-down brushes with wide support brushes or narrow support brushes for processing profiled workpieces, ensure the required pressure. For the pretreatment of workpieces of varying shapes or extremely fluctuating sizes, maximum perfection and flexibility are provided by the motor-driven height adjustment of each individual unit as well as by the infinite rotational speed setting. The high-performance vacuum transport belt ensures reliable transport and holds both small as well as large format workpieces in place. A Molton roller is built in to ensure constant cleaning of the conveyor belt. Unit diversity results in a wide performance spectrum and generates a high economic effect. The basis version of VEN BRUSH allows a selection of 2 unit positions to up to 5 unit positions. To be prepared for possibly changing requirements in your production process, you can also select the next larger variant and equip the free unit position as required at a later date. System examples for possible operating widths from 600 to 3,500 and operating lengths from 2,000 to 5,500 mm. Depending on your production requirements, you can individually select from: Short change times and high operating comfort are possible thanks to the quick-exchange brush system using a push-in system together with a coupling. The optional infinite angle setting of the round brushes permits impeccable edge processing. The use of the structured brush unit is intended for special surface processing. This brush is used to structurise furniture parts, hardwood and softwood, flooring boards or to provide an antique look of up to 1 mm deep at a throughfeed speed of 10 m/min. Where required, the VEN BRUSH can be extended by a dust removal system with rotating blow nozzles and ionisation system. Following a brushing or sanding/grinding effect, this complementary function ensures optimum workpiece cleanliness to meet high requirements. As an individual solution, VEN BRUSH convinces as a station in a Venjakob machine line or when integrated in an existing machine line. As such, control system configuration takes all interfaces into account, through to higher ranking control and monitoring. The high-performance system technology can be easily operated directly using a control panel or a touch panel.