Self-Cleaning Booth
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SAT S.p.A. HEADQUARTER: Via Meucci 2, 37135, Verona (VR) Italy S u r f a c e A l u m i n i u m Te c h OPERATIONS: Viale del Lavoro, 46/48 37060, Buttapietra (Vr) Italy Tel. +39 0376 256149 Fax +39 0376 256147 info@sataluminium.com www.sataluminium.com

This booth has been developed in compliance with the need of the most demanding powder coating markets in terms of industrial performances, healthy working environment, ergonomic use, cost effectiveness and quality of the final product. The entire powder coating application system has been re-design with the aim to get a colour change time in less than 5 minutes. The booth foresees the recovery circuit for the over-spray and is provided with electrostatic powder coating deposition equipment. The booth is suitable also for refitting of existing vertical powder coating plants replacing the...

Booth Structure and Advantages A POSSIBLE SCENARIO Considering the changes which affected the coated profiles market in these last 5-6 years, we have been thinking about a booth suitable both to be placed as a component for new plants and to refit existing vertical powder coating lines replacing the old equipment. In that case, with reference to the plant or to the intervention to be carried out, it is possible, case by case, to recover some elements of the existing line (filter, electrostatic powder equipment). As far as regards the new plants, it is important to point out how the fast...

FRONTAL VIEW Support structure with walkable ceiling: it permits the access to the cyclones upper side and to the booth ceiling Vertical suction slots: they drive the over-spray from the booth to the cyclones Sliding belts (bottom and vertical walls rotate during painting and colour change operations): they allow powder recovery and automatic cleaning of the booth Lower horizontal suction slots UPPER VIEW Box under the floor level for the automatic cleaning of the guns (inner part of powder hoses and external surface) Electrostatic guns Reciprocator

Cyclone Booth lateral sliding belts (walls) Booth horizontal sliding belt (floor) Vertical ducts for air extraction Reciprocator RECIPROCATOR It is the equipment on which the guns spraying the powder are fixed and allows their regular movement towards the profiles’ top and bottom during the spraying process, to get the “brush” effect all along the extrusion. It is composed of the following components: chain, encoder, gear motor with inverter, transmission and stretching gear wheels, trolley with adjustable arm, counterweight. After the start-up of the automatic cycle, the trolley carrying...

CYCLONES Behind the booth structure two high efficiency cyclones connected to the vertical powder suction collector pipes are foreseen. The cyclones separate and recover the over-spray, it means the sprayed powder which does not deposit on the profiles and remains inside the booth. The cyclones separate the air-powder mix extracted from the booth: while the clean air proceeds throughout the ducts located in the upper part (towards the final filter), the separated powder falls down to the bottom of the cyclone where there is a group of pneumatic valves that can perform the disposal cycle...

the cleaning process of the booth foresees a series of operations scheduled according to a logic sequence automatically managed the whole cleaning process of the booth (including the guns) does not require any intervention of the operator Thus the booth cleaning time takes less than 5 minutes Solutions studied to reach that result: 1) Four sliding belts (vertical walls and booth bottom floor) automatically cleaned in continuous As far as regards the powder hoses, inner part and external surface of the guns a cleaning process automatically managed through an optimized sequence of operations...

RUNNING COSTS The high efficiency of the deposition allows also a relevant reduction of the powder consumption in case of very small lots that are painted in powder-waste modality and in general, with all lots, during the waste-powder phase that occurs at the beginning of a new lot after a colour change (before switching to the powderrecovery modality). Thanks to the four sliding belts automatically cleaned, the powder, during the powder-recovery modality, is recovered in continuous so comparing with the situation of the previous generation booth model (where the powder lays on the walls...

The booth is equipped with a “dynamic” air extraction system that allows to adjust the extracted air flow-rate along the height of the reciprocator stroke trucking the position of the guns; in this way the powder does not escape the spraying zone. Thanks to the automatic cleaning of booth walls, guns powder hoses, the operator of the booth remains outside to control the process, to clean the powder centre and to feed the booth with required powder. The area of the booth can be surrounded by protective fences and the personnel will not be forced to have contact with the booth and the guns...

LIMITATIONS OF LIABILITY All data in this publication were verified with accuracy on the basis of knowledge currently available. Like all the information for the application, the data provided does not constitute binding indications, which are outside of our contractual obligations (including in relation to any rights of third parties) and for which we accept no responsibility. In particular, the figures presented are not guarantee specific about the characteristics and the user is responsible for supervising the materials we provide and the suitability for use expected.

SAT S.p.A. HEADQUARTER: Via Meucci 2, 37135, Verona (VR) Italy S u r f a c e A l u m i n i u m Te c h OPERATIONS: Viale del Lavoro, 46/48 37060, Buttapietra (Vr) Italy Tel. +39 0376 256149 Fax +39 0376 256147 info@sataluminium.com www.sataluminium.com