Guns_Nozzles
11Pages

Gun nozzles for every application Different extensions, flat spray, round spray and angle nozzles are designed to offer the best results even with difficult applications. Manual Gun ^^^H Automatic Gun OptiSelect GM03 ^^^H OptiGun GA03 Highest powder transfer efficiency Perfect powder application quality © 2015 by Gema Switzerland GmbH - All rights reserved.

Gun nozzle design ● Powder coating requires a perfect combination of nozzle design and high voltage supply to achieve an homogeneous powder cloud. ● The high voltage field plays a very important role ensuring a perfect powder atomization and charging. ● Different object geometries to be coated require different nozzle geometries to ensure that the powder cloud is ideal and at the right speed. © 2015 by Gema Switzerland GmbH - All rights reserved. without high voltage with high voltage Homogeneous powder distribution

Gun nozzles and extensions ● The nozzles and extensions are interchangeable for the manual and automatic guns, thanks to the compatible and smart gun shaft design. ● All nozzles and extensions are compliant to the ATEX directives. ● The use of high quality non-stick materials prevents powder accumulations and allows a high quality color change. © 2015 by Gema Switzerland GmbH - All rights reserved.

Extensions for round and flat jet nozzles ● Manual and automatic guns can be provided with robust and solid nozzle extensions of 150 and 300 mm length. These nozzles are interchangeable with the standard nozzles and offer a perfect flexibility of use. ● Special smaller and lighter-weight extensions are also available. o In manual applications they offer easy and stress-free operation over a long working time. o In automatic application, they are ideal for inside coating of narrow areas like in boilers. © 2015 by Gema Switzerland GmbH - All rights reserved.

Angle nozzles for special applications ● A wide range of 45°, 60° and 90° angle nozzles are available for challenging applications. ● The typical area of use are complex geometries like profiles, chassis, beam frames and cabinet coating. ● The angle nozzles are also ideal for variety of applications where fixed guns are needed. © 2015 by Gema Switzerland GmbH - All rights reserved.

SuperCorona add-on to improve quality In a corona gun the high voltage electrode generates a big quantity of air Only a few air ions really charge the powder particles, the other ions remain free and are attracted by the surface to coat (which is grounded). The high accumulation of free ions on the surface to coat can produce an uneven powder layer and the so called "orange peel effect" or back-ionization problems. SuperCorona discharges the excessive free ions to ground and avoids Traditional Charging with SuperCorona © 2015 by Gema Switzerland GmbH - All rights reserved.

Flat jet nozzles: NF20, NF21, NF22 Flat jet nozzle type NF20 Angle = 50° Velocity = moderate - low Distance to object maximal = 250 mm Flat jet nozzle type NF21 Angle = 30° Velocity = high Distance to object maximal = 400 mm Flat jet nozzle type NF22 Angle = 30° Velocity = high Distance to object maximal = 450 mm © 2015 by Gema Switzerland GmbH - All rights reserved. Standard manual nozzle • flat parts • profiles Automatic & manual nozzle • complex parts (deep recess) • target spraying Automatic & manual nozzle • complex parts (deep recess) • target spraying • robot applications

Flat jet nozzles: NF24, NF25 Flat jet nozzle type NF24 Angle = 65° Velocity = low Distance to object maximal = 200 mm Flat jet nozzle type NF25 (mini) Angle = 50° Velocity = moderate - low Distance to object maximal = 250 mm Remark: In combination with extension Ø 25mm, reduced diameter to penetrate into cavities /Powder cloud like NF20 © 2015 by Gema Switzerland GmbH - All rights reserved. Automatic & manual nozzle • large object • flat parts • complex parts when nozzle close to the object Automatic & manual nozzle • flat parts • profiles

Flat jet nozzles: NF26, NF27 Flat jet nozzle type NF26 (mini) Angle = 30° Velocity = high Distance to object maximal = 450 mm Automatic & manual nozzle • complex parts (deep recess) • target spraying • robot applications Remark: In combination with extension Ø 25mm, reduced diameter to penetrate into cavities Flat jet nozzle type NF27 Angle = 40° Velocity = high - moderate Distance to object maximal = 350 mm Remark: Alternative for large flat objects or complex parts, when nozzle close to the object = NF24 © 2015 by Gema Switzerland GmbH - All rights reserved. Standard automatic nozzle •...

Round jet nozzle NS09 deflector 16/24 Round spray nozzle type NS09 Deflector Ø16 mm Ømaximal Powder cloud = 60 mm Velocity = low Automatic & manual nozzle • flat parts • low speed coating • powder cloud 60mm Distance to object maximal = 120 mm Round spray nozzle type NS09 Deflector Ø24 mm Ømaximal Powder cloud = 90 mm Velocity = low Distance to object maximal = 160 mm © 2015 by Gema Switzerland GmbH - All rights reserved. Automatic & manual nozzle • flat parts • low speed coating • powder cloud 90mm

Round jet nozzle NS09 deflector 32/50 Round spray nozzle type NS09 Deflector Ø32 mm Ømaximal Powder cloud = 110 mm Velocity = low Automatic & manual nozzle • flat parts • low speed coating • powder cloud 110 mm Distance to object maximal = 160 mm Round spray nozzle type NS09 Deflector Ø50 mm Ømaximal Powder cloud = 200 mm Velocity = low Distance to object maximal = 180 mm © 2015 by Gema Switzerland GmbH - All rights reserved. Automatic & manual nozzle • flat parts • low speed coating • powder cloud 200 mm