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AT pneumatic actuator
Torque range: 10-10000NM
Travel range: 0-90 degrees
Protection: IP67
Control: double-acting, single acting normally closed, normally open Single-acting
Configuration mode: rack and pinion piston
Can be equipped with valves: butterfly valves, ball valves, damper
Surface treatment: hard anode of the oxygen electrode
Can be equipped with accessories: a solenoid valve, an air filter regulator, s back, a hand wheel, electric positioner
Product details

First, the AT pneumatic actuator Product Overview
 AT new rack and pinion pneumatic actuator combines the latest technology at home and abroad, through CAD three-dimensional model innovation and design, compact appearance, modern styling; and the use of new materials, new technology, Product quality, more reliable performance; more selection of more affordable specifications; products fully meet the latest international standards and technical specifications to meet current and future needs. 
 
 Second, the AT pneumatic actuator Features
 1, double-piston rack and pinion symmetrical structure design, fast and smooth movements, high precision, high output power, by simply changing the piston assembly position can be obtained in the opposite direction of rotation. 
 2, Extruded high-quality aluminum alloy cylinder body, hard-anodized (in special case, anodized + Teflon coating) with precision machined bore hole and external surface, longer service life and lower friction coefficient. 
 3, one-piece design, all double-acting and single-acting actuator models, have the same cylinder block and end cover, it is convenient by adding spring or remove the spring to change the mode of action. 
 4, combined pre-charged safety spring group, either in the assembly process or the use of the scene, can be convenient and safe installation or increase or decrease the number of springs. 
 5, two separate side of the external adjustment screw has been installed on the valve actuator is more precise and convenient, open and valve control valve position, if the need for full stroke adjustment while the other end cap is also equipped with a longer adjustment screw . 
 6, Multi-function position indicator, visual indication on site, acc. To VID / VIE3845, NAMUR standard slot, can install and output all accessories, such as limit switch box, electrical positioner and position sensor (Beckhoff, Turck). 
 7, Gas source interface with NRMAR standard, can be directly installed NUMAR standard solenoid valve. 
 8, the back of the rack of composite materials bearing and piston ring and the output shaft bearings, etc. In order to prevent metal to metal friction, and increase lubrication, so that low friction and long life. 
 9, all fasteners are made of stainless steel, long-term anti-corrosion.
 10, the connection part of the line with the new international standard ISO5211, DIN3337 (F03-F25) to make production and installation of interchangeability, versatility. 
   
   Third, the double-acting principle (ATD)

 Picture .png

CCW:
 Air intake at port A. Compressed air overcomes spring force. Piston outward movement, the actuator output shaft counterclockwise rotation (0 ° → 90 °), B port exhaust; 
 actuator out of breath, the piston moves inward under the spring force, the actuator output shaft clockwise 90 ° → 0 °), A mouth exhaust. 
 
 CW:
 A port inlet, compressed air to overcome the spring force to promote outward movement of the piston, the actuator output shaft clockwise rotation (0 ° → 90 °), B port exhaust; 
 actuator vapors. Pistons in the spring force The actuator output shaft rotates counterclockwise (90 ° → 0 °) and the A port exhausts.


Fourth, single-acting working principle (ATE)
 Picture .png

CCW:
 A port inlet, compressed air to promote the piston outward movement of the actuator output shaft counterclockwise rotation (0 ° → 90 °), B port exhaust. 
 B port intake, compressed air to promote piston inward movement, so that the actuator output shaft clockwise (90 ° → 0 °), A exhaust port. 
 
   CW:

 A port inlet, compressed air to promote the piston outward movement, so that the actuator output shaft clockwise (0 ° → 90 °), B exhaust port.

B port intake, compressed air to promote piston inward movement, so that the actuator output shaft counterclockwise rotation (90 ° → 0 °), A exhaust port. 
 
 Five, AT pneumatic actuator technical parameters
 Picture .png

Technical Parameters
Components Corrosion level
A B
Cylinder Anode hardened Hand-operated mechanism can be manually open, close the valve
End cap Metallic polyester coating Teflon coating
Output shaft Carbon steel electroless nickel plating Carbon steel Electroless nickel or stainless steel
Use the occasion General occasion General occasions or low concentrations of acidic environment
Anatomical figure parameters
Part Number Each number Part Name Standard material Selection of materials
01 1 (1) Left end cover Die-cast aluminum stainless steel
02 1 (1) Left end cover Die-cast aluminum stainless steel
03 1 Cylinder Extruded aluminum alloy stainless steel
04 2 piston Die-cast aluminum -
05 1 Output shaft Carbon steel stainless steel
06 1 Adjust the cam stainless steel -
07 2 O-ring (end cap) Nitrile rubber Fluorine or silicone rubber
08 2 O-ring (piston) Nitrile rubber Fluorine or silicone rubber
09 1 O-ring (bottom of output shaft) Nitrile rubber Fluorine or silicone rubber
10 1 O-ring (top of output shaft) Nitrile rubber Fluorine or silicone rubber
11 2 O-ring (adjusting bolt) Nitrile rubber Fluorine or silicone rubber
12 2 Plug (cylinder) Nitrile rubber Fluorine or silicone rubber
13 2 Bearing (piston) Fluorocarbon composite materials -
14 1 Bearing (top of output shaft) Nylon 46 -
15 1 Bearing (top of output shaft) Nylon 46 -
16 1 Bearing (back of piston) Nylon 46 -
17 2 Thrust bearings (output shaft) Nylon 46 -
18 2 Gasket (output shaft) Nylon 46 -
19 1 Elastic file circle stainless steel -
20 8/12/16 (2) End cap bolts stainless steel -
twenty one 8/12/16 (2) End cap gasket stainless steel -
22 2 Gasket stainless steel -
twenty three 2 Nuts stainless steel -
24 2 Adjustment bolt stainless steel -
25 2 Guide block Nylon 66 + 30% FG -
26 5-12 Spring assembly Alloy spring steel -
27 1 Location indicator Polypropylene PP + 30% FG -
28 1 Screw stainless steel -


Shape and connection dimensions (mm)
model AT50 AT63 AT75 AT88 AT100 AT115 AT125 AT145 AT160 AT180 AT200 AT240 AT265 AT330
D / E
ISO flange F04 F05 F05-07 F05-07 F07-10 F07-10 F07-10 F10-12 F10-12 F12 F14 F16 F16 F16
A 140.5 158.5 210.5 247.5 268.5 315 345 408.5 437.5 487 546 633 728 876
B 26.5 30 30.5 32.5 37.5 42.5 45 47.5 52 58.5 62.5 78.5 165 187
C 20 20 20 20 20 30 30 30 30 50 50 50 50 50
φD 40 40 40 40 40 56 56 65 65 80 80 115 115 115
E 59 72 84.5 97.5 111 127 136 156.5 169 190.5 213 251 298.5 383
F 69 85 102 115 127 145 157 177 196 220.5 245 298.5 330 405
G 29 36 42.5 49.5 56 64 69.5 80 88 99 110 131 163.5 201
H 41.5 47 52 56.8 67 77 82 91.5 99 105 112 131 166 204.5
I 14.5 14.5 14.5 14.5 14.5 24.5 24.5 24.5 24.5 44.5 44.5 44.5 44.5 44.5
J min 12 16 16 19 19 24 24 29 29 29 38 38 48 57
k 11 11 17 17 17 27 27 27 27 36 36 36 36 36
L 80 80 80 80 80 80 80 80 80 130 130 130 130 130
M 30 30 30 30 30 30 30 30 30 30 30 30 30 30
N 4 8 8 8 8 8 8 8 8 8 8 8 8 8
EO1 42 50 50 50 70 70 70 102 102 125 140 165 165 165
EO - - 70 70 102 102 102 125 125 - - - - -
P1 4-M6 4-M6 4-M6 4-M6 4-M8 4-M8 4-M8 4-M10 4-M10 4-M12 4-M16 4-M20 4-M20 4-M20
P - - 4-M8 4-M8 4-M10 4-M10 4-M10 4-M12 4-M12 - - - - -
Q 11 14 14 17 17 22 22 27 27 27 36 36 46 55
V 24 24 24 24 24 24 24 24 24 24 24 40 40 40
W 32 32 32 32 32 32.9 32 32 32 32 32 45 45 45
Y. M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M6x10 M6x10 M6x10
Z 1/8 " 1/8 " 1/8 " 1/8 " 1/4 " 1/4 " 1/4 " 1/4 " 1/4 " 1/4 " 1/4 " 3/8 " 1/2 " 1/2 "


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