Part detection systems: quality and savings Automatic guns positioning, triggering and setting improve finishing quality and reduce powder wasted in the recovery system. Technical solution Degree of automation Guns triggering Guns settings Guns stroke adjustment Guns in-out positioning Photo-cell or light barrier Part height detection Light barrier Part height + width detection Light barriers Code plates / Object numbers Part recognition, used in combination with one of the above detection methods Reduced overspray Powder savings © 2015 by Gema Switzerland GmbH - All rights reserved. Only with horizontal guns arrangement Stable, improved coating quality

Gap detection, how does it work? ● The presence of each object is detected at booth entrance (1) and tracked with the help of an encoder mounted on the conveyor ● Guns triggering: powder output is on when the object is in front of the gun and is off when no object is in front of the gun (2) 2 © 2015 by Gema Switzerland GmbH - All rights reserved.

Part height detection, how does it work? ● The presence and height of each object are detected at booth entrance (1) and tracked with the help of an encoder mounted on the conveyor ● Guns triggering (2): powder output is on when the object is in front of the gun and is off when no object is in front of the gun 2 © 2015 by Gema Switzerland GmbH - All rights reserved.

Part height detection, how does it work? ● The presence and height of each object are detected at booth entrance (1) and tracked with the help of an encoder mounted on the conveyor ● Guns triggering (2): powder output is on when the object is in front of the gun and is off when no object is in front of the gun ● Stroke adjustment (3): guns stroke is automatically adjusted depending on object height (only with horizontal guns arrangement) 2 © 2015 by Gema Switzerland GmbH - All rights reserved.

Height / width detection, how does it work? ● The presence, height and width of each object are detected at booth entrance (1) and tracked with the help of an encoder mounted on the conveyor ● Guns triggering (2): powder output is on when the object is in front of the gun and is off when no object is in front of the gun ● Stroke adjustment (3): guns stroke is automatically adjusted depending on object height (only with horizontal guns arrangement) ● Guns positioning (4): guns – object distance is automatically adjusted depending on object width © 2015 by Gema Switzerland GmbH - All rights reserved....

Part recognition, how does it work? ● The object presence and type is identified at booth entrance (1) (either by code plates or by a 3rd party PLC) and tracked with the help of an encoder mounted on the conveyor. Guns triggering (2): powder output is on when the object is in front of the gun and is off when no object is in front of the gun Guns setting (5): powder application parameters (powder output, electrostatics, etc.) are automatically adjusted for each object type Stroke adjustment (3): guns stroke is automatically adjusted depending on object height (only with horizontal guns arrangement)...

Reduced overspray ● Gema part detection systems ensure that the guns spray powder only on the object. Desired Overspray ● Guns are turned off when there is no object in front of them. ● Guns stroke is adjusted so that guns spend most of their time in front of the object. ● Excessive overspray is eliminated ● Reduced powder waste in the recovery system ● Reduced deterioration of powder in the recovery system © 2015 by Gema Switzerland GmbH - All rights reserved. Eliminated Overspray

Powder savings ● Gema part detection systems reduce powder overspray to a minimum. ● Reduced powder waste in the recovery system ● Powder application settings can be optimized based on the object to coat ● Optimized film thickness control ● Reduction of excessive film thickness © 2015 by Gema Switzerland GmbH - All rights reserved.

Stable, improved coating quality ● Gema part detection systems reduce powder overspray to a minimum. ● Reduced deterioration of powder in the recovery system ● Guns stroke, positioning and application settings can be optimized based on each individual object to coat Best coating quality for each individual object type Full automatic operation, no manual intervention required © 2015 by Gema Switzerland GmbH - All rights reserved.