Heves megyei aprónyomtatványok 20/B
PNEUMATIC CYLINDERS 5 VELOCITY OF PISTON 0.02 to 1 m/s of velocity of piston may be set by pneumatic means (throttle, non-return throttle valves). Higher velocity can be achieved by Intentional oversizing the air supply and applying quick exhaust valve, and lower velocity can be realized by hydropneumatic system. Stroke Choosing the stroke of a pneumatic cylinder, it is practical to use one of the strokes typified by the manufacturer, but the cylinders may be ordered with optional stroke too. Single acting pneumatic cylinders are available with standard strokes only. Standard strokes: 12, (20), 25, 50, 80, 100, 1 25, 160, 20, 250, 320, 400, 500 mm. Installation Wide variety of mountings and piston rod adaptors are available for the pneumatic cylinders. The cylinders can be installed rigidly or articulately (self-aligning way). Stresses, which affect the life time of cylinder adversely (lateral load, buckling), can be reduced considerably by right installation. End position cushioning The energy of piston and mass moved by the piston must be wasted at the last section of stroke in order to avoid bumping. In case of single acting and light duty cylinders (series 132, 164, 1300) rubber or plastic bumpers provide cushioning. Medium duty and heavy duty cylinders (series 166, 167) have got adjustable end position cushionings, throttle valve of cushioning should be set according to the real loading (mass force) when putting into Caution: The operation. Velocity of piston v (m/s) Cushioning diagram of cylinder series 166, 167
