1. SKS Welding Systems GmbH Dual Wire 2.0

2. November 04, 2015 Page 2 Dual Wire 2.0 SKS Welding Systems Dual Wire 2.0 Weld Package With the Weld Package Dual Wire 2.0™, materials thicker than 1,5 mm can be joined fast and easy. With two separate cooling circuits to increase the operational time of the welder and achieve a better cooling effect with this separation.

3. November 04, 2015 Page 3 SKS Welding Systems 1 – Power Sources 2 – Weld Process Controller and Software 3 – Interface 4 – Wire Feeders 5 – Cables 6 – Mounting Kits 7 – Ground Cable 8 – Control Cable 9 – Torch System 10 – Water Cooler Dual Wire 2.0 Standard components Easy to install High deposition rate High welding speed Good accessibility One weld control controls complete process Standard components Easy to install High deposition rate High welding speed Good accessibility One weld control controls complete process

4. November 04, 2015 Page 4 SKS Welding Systems Weld Process Controller Innovative control concept with touch screen With the Q84r and Q84s up to four Weld Packages can be controlled centrally. The Q84r/s is available in two types: 10“ TFT (Q84r) und 7“ TFT (Q84s) For single weld machine the Q80 with 7“ touch screen is available. Dual Wire 2.0

5. November 04, 2015 Page 5 LSQ Power Sources (1) LSQ Power Sources ensure the optimum arc energy for the process. LSQ interconnect bus for doubling power (2 Power Sources can be connected) Direct Control Technology DCT is switching the transistors without any fixed clock frequency. Up to ten times faster switching compared to standard inverter technology. 2 x LSQ5: 840 A - 60% duty cycle SKS Welding Systems Dual Wire 2.0

6. November 04, 2015 Page 6 SKS Welding Systems LSQ Power Sources (2) Less parts for higher reliability and filterless external cooling for less dirt inside the power source Dual Wire 2.0

7. November 04, 2015 Page 7 Power Feeder (1) SKS weld systems are designed for less weight The use of lightweight materials and a technical sophisticated design enables small and lightweight products, with maximum reliability. Our systems are thus designed specifically for the latest generation of robots. They support the high acceleration and reliability. Power Feeder: 3.8 kg. SKS Welding Systems Power Feeder 5 series Dual Wire 2.0

8. November 04, 2015 Page 8 SKS Welding Systems Power Feeder Simple installation of weld components for higher operational times Power Feeder (2) Dual Wire 2.0

9. November 04, 2015 Page 9 SKS Welding Systems Dual Wire 2.0 This torch system is realized with standard SKS components and is welding with a single potential: High material deposition rate, high welding speed, good accessibility, easy cleaning Additionally two separated cooling circuits for a longer lifetime of consumables. Round Nozzle Parallel Wires Dual Wire 2.0

10. November 04, 2015 Page 10 SKS Welding Systems SKS Dual Wire 2.0 - single potential Dual Wire 2.0

11. November 04, 2015 Page 11 SKS Welding Systems How it works (1) Dual Wire 2.0

12. November 04, 2015 Page 12 SKS Welding Systems Tandem – separated potentials Dual Wire 2.0

13. November 04, 2015 Page 13 SKS Welding Systems SKS Dual Wire 2.0 Tandem Two wires provide a single arc and a common welding pool. Every wire has ist own arc but a common welding pool. Dual Wire 2.0

14. November 04, 2015 Page 14 SKS Welding Systems Comparison (1) left: SKS Dual Wire 2.0 right: Tandem Dual Wire 2.0

15. November 04, 2015 Page 15 SKS Welding Systems Comparison (2) Dual Wire 2.0 Constant wire distance Independent of wire stickout Improved accessibility due to smaller dimensions Parallelism of wire allows welding in different positions (punch, drag) Easier to program Standard SKS components – no special equipment necessary Standard reamer for gas nozzle Reduced investment: Equipment Space needed Adjustments Maintenance Tandem Wire is dependend on wire stickout Different angle between wires and work- piece according to welding position (punch, drag) Poor accessibility of work piece Torch is susceptible to disturbance (short circuit between contact tips caused by welding spatters) Increased time for programming Special reamer for gas nozzle (slower) Additional investment: Equipment Space needed Adjustments Maintenance Dual Wire 2.0

16. November 04, 2015 Page 16 SKS Welding Systems More Value with Innovations, Modularity and Flexibility Application (mild steel) Axle part Seam type: fillet weld Weld process : DD- KF- Pulse Welding speed : 160 cm/min Heat input per unit lenght : 422J/mm Base material : S500MC 2,5mm Base material : S500MC 2,8mm Wire material : 2x SG-ER70S 1,0mm Shielding gas: : 92%Ar-8 %Co2 Feature: less spatters, good penetration, high weld speed

17. November 04, 2015 Page 17 SKS Welding Systems More Value with Innovations, Modularity and Flexibility Application (mild steel) Axle part Seam type: overlap seam Weld process : DD- KF- Pulse Welding speed : 170 cm/min Heat input per unit lenght : 365J/mm Base material : S500MC 2,5mm Base material : S500MC 2,8mm Wire material : 2x SG-ER70S 1,0mm Shielding gas: : 92%Ar-8 %Co2 Feature: less spatters, good penetration, high weld speed

18. November 04, 2015 Page 18 SKS Welding Systems More Value with Innovations, Modularity and Flexibility Application (aluminum) Tank application Seam type: butt weld (V-Grove) Weld process : DD- I- Pulse Welding speed : 50 cm/min Heat input per unit lenght :J/mm Base material : AW- 5083 16mm Base material : AW- 5083 16mm Wire material : 2x SG-AlMg4,5MnZr 1,2mm Shielding gas: : 100%Ar Feature: high deposition rate