2. Concept of a ‘dual stroke’ bodymaker first put forward January 2006 in response to Flexible manufacturing Perceived benefits: Greater range of can sizes from single machine Maintain higher speed at shorter stroke

3. 22” 26” stroke

8. Cradle assembly Slideways Support arm Discharge plate PTO assembly Rotary cup feed drive Discharge drive Push rods Ram Guards + Etc.

9. 22” 26” stroke Spacer for dome station Spacer for stripper housing

10. Effect of varying pivot point ‘A’ on stroke ‘A’‘A’

11. 26” 22” 396.3 mm 451.5 mm Dual stroke geometry BDC 26”FDC 26” BDC 22”FDC 22”

12. Dynamic effects of dual stroke configuration 26” geometry remains as standard: Velocities & accelerations remain unchanged Short stroke geometry: Velocities & accelerations of some components increase slightly. Reaction forces comparable with standard geometry Swing lever mass increases around 12 kg

13. Dual Stroke Swing Lever

16. Capabilities Speed: 22” stroke: rated at 390 cpm 26” stroke: rated at 340 cpm Can sizes: 202, 15cl211, 56.8cl Note: Max. can height 205 mm, using 2 ring tool pack Tallest cans shoehorned in using thinner dies

17. Design considerations BDC does not correlate between stroke changes Disrupts the relationship between ram position & redraw cam zero Redraw cam 26” BDC position 22” BDC position Cup feed is the main challenge

18. Toolpack length 250 mm Stripper adapter to give effective cradle length 260 mm

19. Toolpack length Stripper adapter spaced to give cradle length 260 mm 250 mm

20. Discharge 62mm Discharge datum 22” configuration Discharge datum 22” configuration Note: longer ram only required for cans > 16oz

21. Effect on Trimmer 62 mm

22. Sliding Base Trimmer Required No alteration to turret or process Effect on Trimmer