The transportation of delicate items often requires greater control of cylinder acceleration and deceleration than is afforded by traditional air cushions. For this reason, SMC has developed the REC sine cylinder. The term "sine cylinder" is derived from the shape of the velocity curve at both ends of stroke. This control is achieved with the addition of two grooves on each cushion spear which
mass 1.34 0.78 0.36 0.51 Single clevis style REA 1.38 0.79 0.37 0.53 Double clevis style 1.35 0.81 0.36 0.54 Trunnion style REB 0.13 0.09 0.05 0.07 Additional mass per each 50 mm of stroke REC 0.14 0.14 0.07 0.07 Pivot bracket for clevis (With pin) Mounting bracket 0.23 0.06 0.06 0.06 Single knuckle joint CY 0.20 0.07 0.07 0.07 Double knuckle joint (With pin) Calculation: (Example) RECL32
Smooth acceleration/decelation without having influence from load, speed or pressure fluctuation Reference Example) Motion on RECL32-300 Reducing actuation cycle time Pressure Fluctuation Load Fluctuation Pressure (MPa) Pressure (MPa) Pressure (MPa) 0.5 0.5 0.3 0.5 Load (kg) Max. 500 mm/s of high speed transfer is possible.
Sine Cylinder Series REC 20, 25, 32, 40 Replacement Procedure is P.362 Construction !7 !9 @3 @2 !5 @1 @0 !8 !6 The numbers are the same as the "Construction" of the Best Pneumatics No.3 Series REC. *BLUE links will lead to purchase pages. Seal Kit List Description Material Note No. Replacement Parts: Seal Kit Kit no. Contents Bore size (mm) Qty. REC20-PS REC25-PS REC32-PS REC40-PS 20 25
CE2 ML2B Graph (1) Graph (2) RSA50, 63, 80 Bore size 50, 63, 80/ = 0 Bore size 50, 63, 80/ = 0.1 C J G5-S 1.0 1300 1300 RSH80 RSA80 RSH63 RSA63 RSH50 RSH50 RSA50 80 0.9 Operating pressure P [MPa] 1200 1200 CV 0.8 1100 1100 0.7 MVGQ 1000 1000 0.6 900 900 0.5 CC 63 80 Load weight m [kg] Load weight m [kg] 800 800 0.4 50 0.3 RB 700 700 0.2 600 600 J 0.1 63 500 500 50 1000 2000 3000 4000 5000