427 2Compact Cylinders - Overview MISUMI compact air cylinders are designed to be compact to save space. The general-purpose thin-type cylinders have been standardized. Standard-stroke compact air cylinders can be shipped immediately, while those of selectable shape (with specified stroke) can be dispatched on the fifth day after receiving an order. Each of the MISUMI standard thin-type cylinders is equipped with a magnet rubber cushion. 2Features of Compact Air Cylinder For the I.D. of the cylinder tube, eight types are offered. For selectable shapes (with specified stroke), the stroke can be specified in 1mm increments, and the rod tip type can be selected. The cylinder body can be fixed directly through four through holes. In addition, connecting parts can be selected from two shapes: Foot and U-Shaped Clevis Sensors can be installed at eight locations (Ø12: 3 locations; Ø16: 6 locations). 2Selection of Cylinders Define the requirements for the load. 1) Load (N) t t t t t t t t t t t t t t t t Refer to "Load Calculation". 2) Operating Pressure (Mpa) 3) Stroke (mm) 4) Operating Time (s) Calculate the cylinder output. (for Double Acting Type) 1) Determine the cylinder output. (for Outstroke) F1 =KxA1xP F1 = Outstroke Thrust (N) A1 = Outstroke Pressure Area (mm2) t t t t t Refer to "Cylinder Pressure Area Table". K = Load Factor Meeting the Purpose (%) t t t t t Refer to "Load Factor Coefficient Table". P =Operating Pressure (Mpa) 2) Determine the cylinder output. (for Instroke) F2 =KxA2xP F2 =Thrust of Instroke (N) A2 = Instroke Pressure Area (mm2) t t t t t Refer to "Cylinder Pressure Area Table". K = Load Factor Meeting the Purpose (%) t t t t t Refer to "Load Factor Coefficient Table". P =Operating Pressure (Mpa) Determine I.D. of the tube. t Determine the I.D. of the tube based on the cylinder output (N) and load (N). Select a cylinder for required load to be within the range in the table. t t t t t Refer to "Tube I.D. Selection Table" and "Theoretical Output Table". For example, if the operating pressure is 0.5MPa and the 105N cylinder is required, the cylinder diameter is selectable from following 3 sizes: Ø20 (load factor: approx. 70%), Ø25 (load factor: approx. 45%), and Ø32 (load factor: approx. 25%). Theoretical Output (N) = Pressure Area (mm2) x Operating Pressure (MPa) Determine the theoretical reference speed. t Determine the theoretical reference speed based on the stroke (mm) and operating time (s). t t t t t Refer to "Theoretical Reference Speed Selection Table". Verify the cylinder cushion mechanism. t Check allowable kinetic energy (J) when the load is to be stopped near the end of the cylinder stroke. E=m/2xV2 t t t t t Refer to the "Allowable Kinetic Energy Table." E=Kinetic Energy (J) m=Mass (kg) V=Velocity (m/s) CAUTION: If load beyond the allowable kinematic energy (J) is applied to the cylinder, 1) Review the I.D. of the cylinder tube. 2) Install an external stopper. The measures above are required. Verify the lateral load to be applied to the cylinder. t If the lateral load is applied to the tip of the cylinder piston rod, check the allowable lateral load (N). Verify the load based on the following three conditions. t t t t t Refer to the "Allowable Tip Lateral Load Table". 1) I.D. of Cylinder Tube 2) Cylinder Stroke (mm) 3) Lateral Load Applied to the Tip of the Rod (N) CAUTION : If load beyond the allowable lateral load (N) is applied to the tip of the cylinder piston rod, 1) Review the I.D. of the cylinder tube. 2) Install a guiding mechanism on the piston rod to contain the applied load under the allowable lateral load. The measures above are required. Load Factor = Load Theoretical Output 2Theoretical Output Unit : N Tube I.D. mm Operating Direction Operating Pressure (Mpa) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Ø12 Push 11 23 34 45 57 68 79 90 102 113 Pull 8 17 25 34 42 51 59 68 76 85 Ø16 Push 20 40 60 80 101 121 141 161 181 201 Pull 15 30 45 60 75 90 106 121 136 151 Ø20 Push 31 63 94 126 157 188 220 251 283 314 Pull 24 47 71 94 118 141 165 188 212 236 Ø25 Push 49 98 147 196 245 295 344 393 442 491 Pull 38 76 113 151 189 227 264 302 340 378 Ø32 Push 80 161 241 322 402 483 563 643 724 804 Pull 60 121 181 241 302 362 422 483 543 603 Ø40 Push 126 251 377 503 628 754 880100511311257 Pull 106 211 317 422 528 633 739 844 9501056 Ø50 Push 196 393 589 785 982 1178 1374 1571 1767 1963 Pull 165330495660825 9901155131914841649 Ø63 Push 312 623 935 1247 1559 1870 2182 2494 2806 3117 Pull 280 561 841 1121 1402 1682 1962 2242 2523 2803 Load Calculation Calculate the load from the applied mass on the cylinder and its direction. Cylinder Pressure Area Table Load Factor Coefficient Table Tube I.D. Selection Table For vertical direction However, F=Load (N) m = Mass of Object (kg) μ = Friction Coefficient (Standard μ=0.3) g=9.8m/sec2 For lateral direction F= mxg F= mxgxμ m m μ IN OUT A2 A1 +=0.7 or Less +=1 or Less +=0.5 or Less m m Theoretical Reference Speed Selection Table (The charts show the 100.75.50.40.30.20.10.5st cylinder strokes, respectively, in the top-to-bottom order.) Load Factor = 0% 0 0 200 400 600 0 200 400 600 0 200 400 600 0 200 400 600 0.2 0.4 0.6 0.8 1 1.2 Theoretical Reference Speed (mm/s) Operating Time (s) Load Factor = 25% 0 0.2 0.4 0.6 0.8 1 1.2 1.4 Theoretical Reference Speed (mm/s) Operating Time (s) 10st 20st 30st 40st 50st 75st 100st 5st Load Factor=50% 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Theoretical Reference Speed (mm/s) Operating Time (s) 50st 40st 30st 20st 10st 75st 100st 5st Load Factor=70% 0 0.5 1 1.5 2 2.5 3 Theoretical Reference Speed (mm/s) Operating Time (s) 50st 40st 30st 20st 10st 100st 75st 5st 10st 20st 30st 40st 50st 75st 100st 5st Cylinder Pressure Area Tube I.D. (mm) Rod Dia. (mm) A2 Pressure Area (mm2) IN (Pull) A1 Pressure Area (mm2) OUT (Push) 12 6 85 113 16 8 151 201 20 10 236 314 25 12 378 491 32 16 603 804 40 16 1056 1257 50 20 1649 1963 63 20 2803 3117 Load Factor Constant Purpose of Work Load Factor K Static Work (Clamping, Vise, Low Speed Tightening, etc.) 0.7 or Less Dynamic Work Lateral Direction of the Load Placed on the Guide 1 or Less Vertical to Horizontal Operation of Load 0.5 or Less Above two tables (Allowable Kinetic Energy Table and Allowable Tip Lateral Load Table) are for Compact Type Cylinders. For Small Cylinders; for Air Cylinders (Pen-Style Type). Allowable Kinetic Energy Table Allowable Tip Lateral Load Table Load Mass (kg) Allowable Tip Lateral Load (N) 1000 100 10 1 0.1 100 10 1 Speed (mm/s) Cylinder Stroke (mm) 10 0 10 20 30 40 50 60 70 80 90 100 100 500 1000 Ø50 Ø63 Ø50 Ø40 Ø32 Ø25 Ø20 Ø16 Ø12 Ø40 Ø32 Ø25 Ø20 Ø16 Ø12 Ø63 Specified Pressure 0.3MPa Specified Pressure 0.5MPa Specified Pressure 0.7MPa Load Factor 25% Load Factor 70% Theoretical Value 10000 1000 100 10 1 Cylinder Output (N) Ø8 Ø10 Ø12 Ø16 Ø20 Ø25 Ø32 Ø40 Ø50 Ø63 Ø6 Cylinders Overview
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