Standard cylinders DNC, ISO 15552 - Allied Automation, Inc.

Standard cylinders DNC-EL, standard hole pattern, with end-position lockingTechnical dataOperating and environmental conditionsPiston ∅ 32 40 50 63 80 100Operating mediumFiltered compressed air, lubricated or unlubricatedOperating pressure [bar] 2.5 … 12 1.5 … 12Ambient temperature 1) [°C] –20 … +80Corrosion resistance class CRC 2) 2CertificationGermanischer Lloyd1) Note operating range of proximity sensors2) Corrosion resistance class 2 as per Festo standard 940 070Components subject to moderate corrosion stress. Externally visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment or media such as coolants orlubricating agents.Impact energy [J]Piston ∅ 32 40 50 63 80 100Max. impact energy at the end positions 0.1 0.2 0.2 0.5 0.9 1.2Permissible impact velocity:Maximum permissible load:2xE perm.v perm. = mdead + m loadm load = 2xE perm.v 2− m deadv perm. Permissible impact velocityE perm. Max. impact energym Intrinsic Moving load (drive)m Load Moving effective load-H- NoteThis data represents the maximumvalues that can be achieved. Themaximum permissible impact energymust be observed.Forces [N]Piston ∅ 32 40 50 63 80 100Theoretical force at 6 bar, advancing 483 754 1,178 1,870 3,016 4,712Theoretical force at 6 bar, retracting 415 633 990 1,682 2,721 4,418Static holding force 500 2,000 5,000Sizing example-H- NoteWhen sizing pneumatic cylinders it isrecommended as a basic principlethat only 50% of the indicatedtheoretical forces (see above) beused.Given:Installation position = VerticalWorkpiece load = 44 kgF = m x g = 44 kg x 9.81 m/s 2= 431.6 NTo be calculated:Suitable piston ∅Examplewith32mmpiston∅:Theoretical force at 6 bar, advancing = 483 N50% of the theoretical force = 241.5 NStatic holding force with 32 mm piston ∅ =500NThe static holding force of end-position locking is within the permissible range(max. 500 N) with a workpiece load of 44 kg (431.6 N), however the cylinderwould be at 89% capacity.Result:A cylinder with a piston ∅ of 40 mm is therefore recommended for thisapplication.32 Internet: www.festo.com/catalogue/...Subject to change – 2010/02