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  • Spring Return Pneumatic Actuator
  • Spring Return Pneumatic Actuator
  • Spring Return Pneumatic Actuator

Spring Return Pneumatic Actuator

Short Description:

Strong quality assurance with ISO/CE certificates etc.

Self-research Team to ensure Pneumatic Actuator quality and research.

Professional Sales Team for serving worldwide customers.

MOQ: 50pcs or Negotiation; Price Term: EXW, FOB, CFR, CIF; Payment: T/T, L/C.

Delivery Time: 35 Days after order confirmed.


Product Detail

Product Tags

Spring Return Pneumatic Actuator Introduction

The spring return pneumatic actuator is a versatile device designed to control valves using the rotational movement of the gear shaft. Similar to the rack and pinion actuator, it employs the meshing motion of the rack and gear, driven by the piston's force.

This actuator offers an array of remarkable features that enhance its functionality and usability. Like its counterpart, it has achieved a CE certificate, underscoring its adherence to stringent quality and safety standards. Moreover, it complies with international standards, including NAMUR, ISO5211, and DIN, ensuring seamless integration and compatibility with a wide range of valve systems.

Featuring an integrated design, the spring return pneumatic actuator prioritizes stability and superior construction. Its well-engineered structure guarantees reliable and consistent performance, even in challenging operational conditions. With a dual piston rack and pinion design, this actuator delivers exceptional output power, enabling precise and efficient valve control. The dual piston mechanism empowers the actuator to generate substantial force, ensuring optimal valve functionality.

In addition to the shared features with the rack and pinion actuator, the spring return pneumatic actuator possesses several distinct characteristics. It operates through single-acting switching actions, driven solely by the air supply, with the closing action achieved through spring return. This single-acting functionality provides options for both normally open and normally closed configurations, enabling precise control over gas flow.

The structure of the spring return pneumatic actuator is simple, with only one air intake (exhaust) at a single end. This simplicity translates into minimal air consumption, contributing to cost efficiency and energy savings. Resetting the actuator is accomplished either through spring force or diaphragm force. A portion of the compressed air energy is utilized to overcome the spring tension or diaphragm resistance, resulting in a reduction of the piston rod's output force.

The cylinder of this actuator houses springs, diaphragms, and other crucial components, resulting in a generally short stroke length. In comparison to double-acting pneumatic actuators of the same size, the effective stroke of the spring return actuator is relatively smaller. Additionally, the tension of the cylinder return spring and the diaphragm varies with deformation, consequently influencing the output force of the piston rod during travel.

Product Spring Return Pneumatic Actuator
Structure Rack and Pinion Rotary Actuator
Rotary Angle 0-90 Degree
Air Supply Pressure 2.5-8 Bar
Actuator Body Material Aluminum Alloy
Surface Treatment Hard Anode Oxidation
Operating Temperature Standard Temperature:-20℃ ~ 80℃Low Temperature:-15℃ ~ 150℃

High Temperature:-35℃ ~ 80℃
Connection Standard Air interface: NAMURMounting Hole: ISO5211 & DIN3337(F03-F25)
Application Ball Valve, Butterfly Valve & Rotary Machines
Cover Color Blue,Black,Orange,Red & Customized Colors as Customer needs

Components & Materials of Pneumatic Actuator

vsdv
Part

Number

 Each

Number

 Part Name Standard Materials Selected Materials
01 1 Left Cover Aluminum

Die Casting

 Stainless Steel
02 1 Right Cover Aluminum

Die Casting

 Stainless Steel
03 1 Body Aluminum

extrusion

 Stainless Steel
04 2 Piston Aluminum

Die Casting

 ----
05 1 Output Shaft Carbon Steel Stainless Steel
06 1 Cam adjustment Stainless Steel ----
07 2 O-ring(Cover) NBR Fluorine or Silicone Rubber
08 2 O-ring(Piston) NBR Fluorine or Silicone Rubber
09 1 O-ring(output shaft bottom) NBR Fluorine or Silicone Rubber
10 1 O-ring(output shaft at the top) NBR Fluorine or Silicone Rubber
11 2 O-ring(adjusting screw) NBR Fluorine or Silicone Rubber
12 2 Plug(Cylinder) NBR Fluorine or Silicone Rubber
13 2 Bearing(Piston) POM ----
14 1 Bearing(output shaft at the top) POM ----
15 1 Bearing(output shaft bottom) POM ----
16 1 Guide with Bearing(Piston Back) POM ----
17 2 Thrust bearings(output shaft) POM ----
18 2 Gasket(output shaft) Stainless Steel ----
19 1 Flexible file ring Stainless Steel ----
20 8 Cover bolt Stainless Steel ----
21 8 Cover Gasket Stainless Steel ----
22 2 Gasket Stainless Steel ----
23 2 Nut Stainless Steel ----
24 2 Adjustment bolt Stainless Steel ----
25 5-16 Spring Components Alloy Spring Steel ----
26 1 Position indicator POM ----
27 1 Screw of Indicator POM ----
 

 

 

 

AT - 160 S - K10 F10/12 P27 - 90 - B - A

 A           ---Corrosion Resistance Grade: A, B
B           ---Ambient Temp.: Standard-B, Low Temp.: D, High Temp.: G
90          ---Rotation Angle: 00~900, 00~1200, 00~1800, 3 Position, 00~450~900
P27        ---Shaft Size Code: P-Star Square, H-Parallel Opposite Hole, W Two Key Hole
F10/12   ---Connection: ISO 5211, Flange Size: F03-F25
K10        ---Spring QTY: K5-K16, Not Available for Double Acting
S            ---Type: D-Double Acting, S-Spring Return
160         ---Cylinder Size:32-400
AT           --- AT Series Pneumatic Actuator

AT Series Double Acting Rack and Pinion Pneumatic Actuator Torque(N.m.)

ModelAir Pressure Air Supply Pressure(Unit: Bar)
3 3.5 4 4.5 5 5.5 6 7 8
AT-40D 5.7 6.7 7.6 8.6 9.5 10.5 11.4 13.3 15.2
AT-52D 12.0 14.0 16.0 18.0 20.0 22.0 24.0 28.0 32.0
AT-63D 21.0 24.5 28.0 31.5 35.0 38.5 42.0 49.0 56.0
AT-75D 30.0 35.0 40.0 45.0 50.0 55.0 60.0 70.0 80.0
AT-83D 45.7 53.3 61.0 68.6 76.2 83.8 91.4 106.7 121.9
AT-92D 67.4 78.7 89.9 101.2 112.4 123.6 134.9 157.4 179.8
AT-105D 97.6 113.9 130.2 146.4 162.7 179.0 195.2 227.8 260.3
AT-125D 152.2 177.6 203.0 228.3 253.7 279.1 304.4 355.2 405.9
AT-140D 260.3 303.7 347.0 390.4 433.8 477.2 520.6 607.3 694.1
AT-160D 396.6 462.7 528.8 594.9 661.0 727.1 793.2 925.4 1057.6
AT-190D 639.3 745.9 852.4 959.0 1065.5 1172.1 1278.6 1491.7 1704.8
AT-210D 781.0 911.2 1041.4 1171.5 1301.7 1431.9 1562.0 1822.4 2082.7
AT-240D 1147.6 1338.8 1530.1 1721.3 1912.6 2103.9 2295.1 2677.6 3060.2
AT-270D 1742.9 2033.4 2323.8 2614.3 2904.8 3195.3 3485.8 4066.7 4647.7
AT-300D 2390.8 2789.3 3187.8 3586.2 3984.7 4383.2 4781.6 5578.6 6375.5
AT-350D 3580 4176 4773 5369 5966 6563 7159 8352 9546
AT-400D 5100 5950 6800 7650 8500 9350 10200 11900 13600

AT Series Spring Return (Single Acting )Rack and Pinion Pneumatic Actuator Torque(N.m.)

Air Pressure Spring Torque spring Torque
Model Spring Q.ty 2.5bar 3.0bar 3.5bar 4.0bar 4.5bar 5.0bar 5.5bar 6.0bar 7.0bar 8.0bar
00 900 00 900 00 900 00 900 00 900 00 900 00 900 00 900 00 900 00 900 900 00
AT-52S 5
6
7
8
9
10
11
12		 5.7
5.0		 3.8
2.6		 7.7
7.0
6.1		 5.8
4.6
3.4		 9.7
9.0
8.1
7.3		 7.8
6.6
5.4
4.1		 11.7
11.0
10.1
9.3
8.4		 9.8
8.6
7.4
6.1
4.9		 13.7
13.0
12.1
11.3
10.4
9.5		 11.8
10.6
9.4
8.1
6.9
5.6		 15.7
15.0
14.1
13.3
12.4
11.5
10.7		 13.8
12.6
11.4
10.1
8.9
7.6
6.4		 17
16.1
15.3
14.4
13.5
12.7
11.8		 14.6
13.4
12.1
10.9
9.6
8.4
7.2		 18.1
17.3
16.4
15.5
14.7
13.8		 13.4
12.1
10.9
9.6
8.4
7.2		 21.3
20.4
19.5
18.7
17.8		 18.1
16.9
15.6
14.4
13.2		 24.4
23.5
22.7
21.8		 20.9
19.6
18.4
17.2		 6.2
7.4
8.6
9.9
11.1
12.4
13.6
14.8		 4.3
5
5.9
6.7
7.6
8.5
9.3
10.2
AT-63S 5
6
7
8
9
10
11
12		 10.7
9.3		 7.1
5		 14.2
12.8
11.4		 10.6
8.5
6.4		 17.7
16.3
14.9
13.6		 14.1
12
9.9
7.8		 21.2
19.8
18.4
17.1
15.7		 17.6
15.5
13.4
11.3
9.2		 24.7
23.3
21.9
20.6
19.2
17.8		 21.1
19
16.9
14.8
12.7
10.6		 28.2
26.8
25.4
24.1
22.7
21.3
20		 24.6
22.5
20.4
18.3
16.2
14.1
12.1		 30.3
28.9
27.6
26.2
24.8
23.5
22.1		 26
23.9
21.8
19.7
17.6
15.6
13.5		 32.4
31.1
29.7
28.3
27
25.6		 23.9
21.8
19.7
17.6
15.6
13.5		 38.1
36.7
35.3
34
32.6		 32.3
30.2
28.1
26.1
24		 43.7
42.3
41
39.6		 37.2
35.1
33.1
31		 10.4
12.5
14.6
16.7
18.8
20.9
22.9
25		 6.8
8.2
9.6
10.9
12.3
13.7
15
16.4
AT-75S 5
6
7
8
9
10
11
12		 14.5
12.3		 10.5
7.6		 19.5
17.3
15.2		 15.5
12.6
9.7		 24.5
22.3
20.2
18.1		 20.5
17.6
14.7
11.8		 29.5
27.3
25.2
23.1
21		 25.5
22.6
19.7
16.8
13.9		 34.5
32.3
30.2
28.1
26
23.9		 30.5
27.6
24.7
21.8
18.9
16		 39.5
37.3
35.2
33.1
31
28.9
26.8		 35.5
32.6
29.7
26.8
23.9
21
18.1		 42.3
40.2
38.1
36
33.9
31.8
29.7		 37.6
34.7
31.8
28.9
26
23.1
20.3		 45.2
43.1
41
38.9
36.8
34.7		 34.7
31.8
28.9
26
23.1
20.3		 53.1
51
48.9
46.8
44.7		 46.8
43.9
41
38.1
35.3		 61
58.9
56.8
54.7		 53.9
51
48.1
45.3		 14.5
17.4
20.3
23.2
26.1
29
31.9
34.7		 10.5
12.7
14.8
16.9
19
21.1
23.2
25.3
AT-83S 5
6
7
8
9
10
11
12		 22.2
19		 15
10.4		 29.9
26.7
23.6		 22.7
18.1
13.5		 37.5
34.3
31.2
28		 30.3
25.7
21.1
16.5		 45.2
42
38.9
35.7
32.5		 38
33.4
28.8
24.2
19.6		 52.8
49.6
46.5
43.3
40.1
37		 45.6
41
36.4
31.8
27.2
22.6		 60.4
57.2
54.1
50.9
47.7
44.6
41.4		 53.2
48.6
44
39.4
34.8
30.2
25.6		 64.8
61.7
58.5
55.3
52.2
49
45.8		 56.2
51.6
47
42.4
37.8
33.2
28.6		 69.3
66.1
62.9
59.8
56.6
53.4		 51.6
47
42.4
37.8
33.2
28.6		 81.4
78.2
75.1
71.9
68.7		 69.9
65.3
60.7
56.1
51.5		 93.4
90.4
87.1
83.9		 80.5
75.9
71.3
66.7		 23
27.6
32.2
36.8
41.4
46
50.6
55.2		 15.8
19
22.1
25.3
28.5
31.6
34.8
38

AT-92S

5
6
7
8
9
10
11
12

32.8
28.1

21.7
14.9

44.1
39.4
34.7

33
26.2
19.3

55.4
50.7
46
41.4

44.3
37.5
30.6
23.7

66.6
61.9
57.2
52.6
47.9

55.5
48.7
41.8
34.9
28

77.9
73.2
68.5
63.9
59.2
54.5

66.8
60
53.1
46.2
39.3
32.5

89.1
84.4
79.7
75.1
70.4
65.7
61

78
71.2
64.3
57.4
50.5
43.7
36.8

95.6
90.9
86.3
81.6
76.9
72.2
67.6

82.4
75.5
68.6
61.7
54.9
48
41.1

102.2
97.6
92.9
88.2
83.5
78.9

75.5
68.6
61.7
54.9
48
41.1

 120.1
115.4
110.7
106
101.4		 102.4
95.5
88.7
81.8
74.9		 137.8
133.1
128.4
123.8		 117.9
111.1
104.2
97.3

34.4
41.2
48.1
55
61.9
68.7
75.6
82.5

23.3
28
32.7
37.3
42
46.7
51.4
56

AT-105S

5
6
7
8
9
10
11
12

49.7
43.3

32.1
22.2

66
59.6
53.3

48.4
38.5
28.7

82.3
75.9
69.6
63.3

64.7
54.8
45
35.2

98.6
92.2
85.9
79.6
73.3

81
71.1
61.3
51.5
41.6

114.8
108.4
102.1
95.8
89.5
83.1

97.2
87.3
77.5
67.7
57.8
48

131.1
124.7
118.4
112.1
105.8
99.4
93.1

113.5
103.6
93.8
84
74.1
64.3
54.7

141
134.7
128.4
122.1
115.7
109.4
103.1

119.9
110.1
100.3
90.4
80.6
71
61

150.9
144.6
138.3
131.9
125.6
119.3

110.1
100.3
90.4
80.6
71
61

 177.2
170.9
164.5
158.2
151.9		 149.1
139.2
129.4
119.8
109.8		 203.4
197
190.7
184.4		 171.7
161.9
152.3
142.3

49.2
59.1
68.9
78.7
88.6
98.4
108
118

31.6
38
44.3
50.6
56.9
63.3
69.3
75.9

AT-125S

5
6
7
8
9
10
11
12

74.8
63.8

47.8
32.8

100.2
89.2
79.2

73.2
58.2
42.2

125.6
114.6
104.6
93.6

98.6
83.6
67.6
52.6

151
140
130
119
109

124
109
93
78
62

176.3
165.3
155.3
144.3
134.3
123.3

149.3
134.3
118.3
103.3
87.3
71.3

201.7
190.7
180.7
169.7
159.7
148.7
138.7

174.7
159.7
143.7
128.7
112.7
96.7
80.7

216.1
206.1
195.1
185.1
174.1
164.1
154.1

185.1
169.1
154.1
138.1
122.1
106.1
91.1

231.4
220.4
210.4
199.4
189.4
179.4

169.1
154.1
138.1
122.1
106.1
91.1

 271.2
261.2
250.2
240.2
230.2		 230.2
214.2
198.2
182.2
167.2		 311.9
300.9
290.9
280.9		 264.9
248.9
232.9
217.9

79
94
110
125
141
157
173
188

52
63
73
84
94
105
115
125

AT-140S

5
6
7
8
9
10
11
12

130.9
113.9

87.9
61.9

174.3
157.3
140.3

131.3
105.3
79.3

217.7
200.7
183.7
166.7

174.7
148.7
122.7
97.7

261
244
227
210
192

218
192
166
141
115

304.4
287.4
270.4
253.4
235.4
218.4

261.4
235.4
209.4
184.4
158.4
132.4

347.8
330.8
313.8
296.8
278.8
261.8
244.8

304.8
278.8
252.8
227.8
201.8
175.8
149.8

374.2
357.2
340.2
322.2
305.2
288.2
271.2

322.2
296.2
271.2
245.2
219.2
193.2
167.2

400.6
383.6
365.6
348.6
331.6
314.6

296.2
271.2
245.2
219.2
193.2
167.2

 470.3
452.3
435.3
418.3
401.3		 401.3
375.3
349.3
323.3
297.3		 539.1
522.1
505.1
488.1		 462.1
436.1
410.1
384.1

129
155
181
206
232
258
284
310

86
103
120
137
155
172
189
206

AT-160S

5
6
7
8
9
10
11
12

190.5
162.5

122.5
80.5

256.6
228.6
200.6

188.6
146.6
104.6

322.7
294.7
266.7
239.7

254.7
212.7
170.7
129.7

388.8
360.8
332.8
305.8
277.8

320.8
278.8
236.8
195.8
153.8

454.9
426.9
398.9
371.9
343.9
315.9

386.9
344.9
302.9
261.9
219.9
177.9

521
493
465
438
410
382
354

453
411
369
328
286
244
203

559.1
531.1
504.1
476.1
448.1
420.1
392.1

477.1
435.1
394.1
352.1
310.1
269.1
227.1

597.2
570.2
542.2
514.2
486.2
458.2

435.1
394.1
352.1
310.1
269.1
227.1

 702.4
674.4
646.4
618.4
590.4		 592.4
550.4
508.4
467.4
425.4		 806.6
778.6
750.6
722.6		 682.6
640.6
599.6
557.6

208
250
292
333
375
417
458
500

140
168
196
223
251
279
307
335

AT-190S

5
6
7
8
9
10
11
12

333
293

224
162

440
400
360

331
269
207

546
506
466
426

437
375
313
251

653
613
573
533
493

544
482
420
358
296

759
719
679
639
599
559

650
588
526
464
402
341

866
826
786
746
706
666
626

757
695
633
571
509
4448
386

933
893
853
813
773
733
693

802
740
678
616
555
493
431

999
959
919
879
839
799

740
678
616
555
493
431

 1172
1132
1092
1052
1012		 997
935
874
812
750		 1346
1306
1266
1226		 1149
1088
1026
964

309
371
433
495
557
618
680
742

200
240
280
320
360
400
440
480

AT-210S

5
6
7
8
9
10
11
12

376
321

271
195

506
451
396

401
325
249

636
581
526
471

531
455
379
303

767
712
657
602
547

662
586
510
434
358

897
842
787
732
677
622

792
716
640
564
488
412

1027
972
917
862
807
752
697

922
546
770
694
618
542
466

1102
1047
992
937
882
827
772

976
900
824
748
672
596
520

1177
1122
1067
1012
957
902

900
824
748
672
596
520

 1383
1328
1273
1218
1163		 1215
1139
1063
987
911		 1588
1533
1478
1423		 1399
1323
1247
1171

380
456
532
608
684
760
836
912

275
330
385
440
495
550
605
660

AT-240S

5
6
7
8
9
10
11
12

547
465

403
292

738
656
573

594
483
373

929
847
764
683

785
674
564
453

1120
1038
955
874
791

976
865
755
644
532

1312
1230
1147
1066
983
901

1168
1057
947
836
724
614

1503
1421
1338
1257
1174
1092
1010

1359
1248
1138
1027
915
805
694

1612
1529
1448
1365
1283
1201
1119

1439
1329
1218
1106
996
885
774

1721
1640
1557
1475
1393
1311

1329
1218
1106
996
885
774

 2022
1939
1857
1775
1693		 1792
1680
1570
1459
1348		 2322
2240
2158
2076		 2063
1953
1842
1731

554
665
775
886
998
1108
1219
1330

410
492
575
565
739
821
903
985

AT-270S

5
6
7
8
9
10
11
12

892
780

665
509

1183
1071
960

956
800
642

1473
1361
1250
1138

1246
1090
932
775

1764
1652
1541
1429
1317

1537
1381
1223
1066
908

2054
1942
1831
1719
1607
1495

1827
1671
1513
1356
1198
1042

2345
2233
2122
2010
1898
1786
1674

2118
1962
1804
1647
1489
1333
1175

2523
2412
2300
2188
2076
1964
1853

2252
2094
1937
1779
1623
1465
1308

2703
2591
2479
2367
2255
2144

2094
1937
1779
1623
1465
1308

 3172
3060
2948
2836
2725		 2809
2651
2495
2337
2180		 3641
3529
3417
3306		 3232
3076
2918
2761

787
943
1101
1258
1416
1572
1730
1887

560
672
783
895
1007
1119
1231
1342

AT-300S

5
6
7
8
9
10
11
12

1263
1117

932
720

1661
1515
1369

1330
1118
906

2060
1914
1768
1622

1729
1517
1305
1093

2458
2312
2166
2020
1874

2127
1915
1703
1491
1279

2857
2711
2565
2419
2273
2127

2526
2314
2102
1890
1678
1465

3255
3109
2963
2817
2671
2525
2379

2924
2712
2500
2280
2076
1863
1651

3508
3362
3216
3070
2924
2778
2632

3111
2899
2687
2475
2262
2050
1838

3760
3614
3468
3322
3176
3030

2899
2687
2475
2262
2050
1838

 4411
4265
4119
3973
3827		 3882
3670
3457
3245
3033		 5062
4916
4770
4624		 4467
4254
4042
3830

1061
1273
1485
1697
1909
2122
2334
2546

730
876
1022
1168
1314
1460
1606
1752

Pneumatic Actuator FAQ:

Q1: Pneumatic Valve can’t Move ?
A1: Check the Solenoid Valve is normal or not;
Test the actuator separately with air supply;
Check the handle position.

Q2: Pneumatic Actuator with slow motion ?
A2: Check air supply is enough or not;
Test the Actuator Torque is ok or not for the valve;
Check Valve coil or other components are too tight or not;

Q3: Reply Devices without Signal ?
A3: Inspect and repair power circuit;
Adjust the cam to correct position;
Replace micro switches.

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