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Overview

The GT pneumatic actuator utilizes compressed air as its driving force. Within the cylinder, the piston drives components such as the gear rack and pinion, ultimately converting this force into output torque to control valve opening and closing. It is available in single-acting and double-acting functional specifications, allowing selection based on customer requirements. It can also be pre-set for direct or reverse action. The GT pneumatic actuator is a traditional flagship product of Zhejiang Baide Automation, suitable for controlling various valves requiring 90° rotary motion. Through multiple iterations of design refinement, manufacturing process upgrades, and accessory enhancements. Zhejiang Baide's GT pneumatic actuator has achieved greater intelligence and superior performance. With extensive application scope and a long-standing history, it offers a significant price advantage over other actuators.

GT Series  Pneumatic Actuator
GT Series  Pneumatic Actuator GT Series  Pneumatic Actuator GT Series  Pneumatic Actuator GT Series  Pneumatic Actuator

Specifications: GT52~GT350, GT52K~GT350K

Model Meaning: GT—Pneumatic actuator type, 52—Cylinder bore diameter, K—Single-acting (spring-return), 8—Number of springs

Working Stroke: 90° ± 5°

Operating Air Pressure: 0.4–0.7 MPa

Air Connection: Compliant with NRMAR standard

Output Torque:

Double-acting: 15–8700 Nm

Single-acting: 4–7500 Nm (default configuration: 8 springs)

Actuation Type: Double-acting, Single-acting (spring-return)

Ambient Temperature:

Standard Type: -20°C to +80°C

High-Temperature Type: -15°C to +180°C

Low-Temperature Type: -50°C to +80°C

Must be confirmed at time of order!

Solenoid Valve Power Supply: AC220V or DC24V (also available per customer requirements)

For specific output torque values, please refer to the detailed torque output table below.


GT Double-acting output torque table (Nm)
Model0.4MPa0.5MPa0.6MPa0.7MPa
GT5215.6 19.5 23.4 27.3 
GT6323.2 29 34.8 40.6 
GT7540 50 60 70 
GT8356 70 84 98 
GT9277.6 97 116.4 135.8 
GT110112.8 141 169.2 197.4 
GT118168 210 252 294 
GT127220 275 320 385 
GT143351.8 439.8 527.7 615.7 
GT160440 550 660 770 
GT190789.5 986.9 1184 1382 
GT210948 1185 1422 1659 
GT2541700 2000 2500 3045 
GT2552172 2715 3258 3801 
GT3003136 3921 4705 5489 
GT3504981 6226 7471 8717 


GT Single-acting output torque table (Nm)
ModelSpring No.Spring Output Torque (Nm)Spring Output Torque(N.m)
0.4MPa0.5MPa0.6MPa0.7MPa
Start 0°End 90°Start 0°End  90°Start 0°End 90°Start 0°End 90°Start 0°End 90°
GT52K87.62.311.56.215.410.119.31413.38
GT63K810.44.816.210.62216.427.822.218.412.8
GT75K820.81.630.814.640.824.650.834.635.419.2
GT83K830.413.644.427.658.241.672.455.642.425.6
GT92K8--60.235.479.654.7997461.736.8
GT110K851.917.980.146.1108.374.3136.5102.594.960.9
GT118K88426.812668.8168110.8210152.8141.284
GT127K812052175107220162285217158100
GT143K8--255.973.6343.8161.5431.8149.5366.2183.9
GT160K8232129342238452349562459411208
GT190K8376.6222.8574420.2771.1617.6969.1815566.4412.9
GT210K8522.4332.8759.4569.8996.4806.81233.41043.8615.2425.6
GT254K8796264109669915961134214115691366904
GT255K81228419.617712051.623141507.628572051.61750.4944
GT300K81968170421771744353730644321375216411168
GT350K83429223246743056591940487165415234231552



Parts and material
NO.Spare   Part
1Gear   Rack and Pinion
2Adjustment   Screw
3Assembly   Spring
4End   Cover Bolt
5Aluminum   Alloy Cylinder Body


GT52~GT350(K), Double Acting external dimension table
ModelABCD NA=20D NA=30φEφFφGφHIO□KMNPQL
Single-Acting  Double-Acting
Interface thread
GT52505974941041212ISO F03φ36ISO F05φ50M5×8       M6×10CH.11CH.1080218125 G1/8"
GT636070881081181212ISO F05φ50ISO F07φ70M6×10    M8×13CH.11CH.1080218140 G1/8"
GT7565831001201301418ISO F05φ50ISO F07φ70M6×10    M8×13CH.14CH.1080219165 G1/8"
GT8565911081281381418ISO F05φ50ISO F07φ70M6×10    M8×13CH.17CH.1080219182 G1/8"
GT927010011713714719.525ISO F05φ50ISO F07φ70M6×10     M8×13CH.17CH.1480219209 G1/8"
GT1109012014016017019.525ISO F07φ70ISO F10φ102M8×13    M10×16CH.17CH.14802.524.5222 G1/4"
GT118901201401601702840ISO F07φ70ISO F10φ102M8×13    M10×16CH.22CH.20802.524.5294 G1/4"
GT1271031371601801902840ISO F07φ70ISO F10φ102M8×13    M10×16CH.22CH.2080325284 G1/4"
GT143110172198-2282840ISO F10φ102ISO F12φ125M10×16     M12×20CH.27CH.20130327361 G1/4"
GT160110172198-2283640ISO F10φ102ISO F12φ125-M12×20CH.27CH.28130329378 G1/4"
GT190135224255-2853645
ISO F14φ140- M16×25CH.36CH.38130336418 G1/4"
GT210135224255-28536945
ISO F14φ140-M16×25CH.36CH.32130440452 G1/4"
GT254159272302-3324075
ISO F16φ165- M20×28CH.46CH.32130450603 G3/8"
GT255159272302-3324075
ISO F16φ165-M20×28CH.46CH.32130450683 G3/8"
GT300196324350-3804075
200 x 140-M20×32CH.46CH.32150450700 G3/8"
GT350220380408-43840105
260 x 160-M20×38CH.60CH.32150470795 G3/8"


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Zhejiang baide automation instruments co.,ltd has a history of 23 years,we provide customers with most suitable solutions and quality product. we will continue to apply new technology and new materiais to actively develop new variety products
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