Incorporates the latest mechanical technology (rack and pinion design) to give long service life with light weight and high performance. The unit will spring back to its rest position in the absence of air making it great for fail safe applications. Features include end of stroke adjustment, visual Indicator, namur interface and ISO mounting interface. Options include IP67 limit switch box with visual Indicator, Namur (direct mount) solenoid valves and a range of inserts to step the drive down.

Torque in Nm.

Input Air to Spring  
Air Pressure (Bar) 6 7 8 Spring Return Output
  90° 90° 90° 90°
Model Start End Start End Start End End Start
SSR52 13.8 9.1 17.8 12.2 21.8 17.1 10.2 14.8
SSR63 27.3 18.6 34.6 25.9 41.9 33.3 16.4 25
SSR83 56.1 38.9 71.7 54.5 87.4 70.2 38 55.2
SSR105 122.5 80.6 155.5 113.6 188.6 146.7 75.9 118.1
SSR125 176 113 226 163 276 213 125 188
SSR140 307 203 392 289 478 374 206 310
SSR160 463 298 596 431 729 564 335 500
SSR210 936 684 1202 950 1468 1216 660 912

Stainless Steel Double Acting Pneumatic Actuator Dimensions

Model A B C D E F G H I N J K L M Air Connection
SSR52 146 72 30 92 47 32 14 80 30 11 50 36 M6*10 M5*7.5 1/4"
SSR63 173 88 36 108 54 38 18 80 30 14 70 50 M8*13 M6*10 1/4"
SSR83 204 108 48 125 65.5 48 21 80 30 17 70 50 M8*13 M6*10 1/4"
SSR105 270 133 50 153 77 60 26 80 30 22 102 70 M10*16 M8*13 1/4"
SSR125 302 155 58 175 87 69.5 27.5 80 30 22 102 70 M10*16 M8*13 1/4"
SSR140 394 172 69 192 95.5 77 32 80 30 27 125 102 M12*20 M10*16 1/4"
SSR160 456 198 75 218 106 87 34 80 30 27 125 102 M12*20 M10*16 1/4"
SSR210 568 257 90 287 133 113 40 130 30 36 140   M16*24   1/4"

All dimensions in mm unless shown otherwise. 

Stainless Steel Spring Return Actuator Construction

Part Number Quantity Part Name Material
1 1 Cylinder CF8
2 1 Shaft 304 Stainless Steel
3 1 O-ring NBR
4 1 Bearing Nylon 46
5 1 Adjusting Cam 304 Stainless Steel
6 1 Thrust Bearing Nylon 46
7 1 Bearing Nylon 46
8 1 O-ring NBR
9 1 Bearing Nylon 46
10 1 Gasket 304 Stainless Steel
11 1 Elastic Damping Ring 304 Stainless Steel
12 1 Position Indicator PPPP+30%GF
13 1 Screw PPPP+30%GF
14 4 Pising Indicating Piece PPPP+30%GF
15 2 Piston Cast Aluminium
16 2 Guide Bearing Nylon 46
17 2 O-ring NBR
18 2 Guide Ring Fluorine-carbon composite
19 10 Springs Alloy Spring Steel
20 2 O-ring NBR
21 1 Left End Cap CF8
22 1 Right End Cap CF8
23 8 End Cap Bolt 304 Stainless Steel
24 2 O-ring NBR
25 2 Gasket 304 Stainless Steel
26 2 Nut 304 Stainless Steel
27 2 Adjusting Bolt 304 Stainless Steel

Size 52mm to 210mm
Body 304 Stainless Steel
End Caps 304 Stainless Steel
Fixings 316 Stainless Steel
Actuation Spring Return Pneumatic

Product History