Pneumatic Actuators Pneumatic Actuators

Pneumatic Actuators

Leading products   Global sales network
Pneumatic Actuators
HPR Series Rack and Pinion Pneumatic Actuators

The HPR series pneumatic actuator is a widely used rack and pinion type part-turn pneumatic actuator. Its cylinder body is formed by extruded aluminum, with the inner surface finely ground and hard anodized, ensuring  long service life, low friction coefficient, and rapid movement. It is suitable for valves requiring 0~90 degree rotation, such as ball valves, butterfly valves, and plug valves.

Inquiry Now
Product Introduction

> Corrosion Resistance: The cylinder body is extruded from ASTM 6005 aluminum alloy (stainless steel cylinders are available based on customer application requirements, subject to final selection). The inner surface undergoes fine grinding and anodic oxidation to enhance corrosion resistance and extend service life.

Adjustable Torque: The modular pre-load spring cartridge allows for safe and convenient disassembly of the single-acting actuator.The torque output range can be adjusted by changing the number of springs.

Adjustable  Opening: External independent stroke adjustment screws allow for convenient and precise ±4°adjustment in both directions, ensuring precise alignment between the actuator's fully open and fully closed positions with the corresponding valve positions.

Reliable Structure: The integrated gear-and-bearing design enhances operational safety. With  nickel-plating treatment,the assembly offers improved fracture resistance and extended service life.

Fast Response Speed: The rack and pinion mechanism achieves transmission efficiency of over  90%, minimizing energy loss.The direct engagement of pneumatic drive with the gear mechanism enables rapid start-stop performance, making it ideal for high-speed cycling applications.

Universal Connection Standard: The multi-functional position indicator with NAMUR groove   enables easy connection with a wide range of standard sensor components

Technical Data

Double-Acting Torque Table

Model 2bar 2.5bar 3bar 4bar 4.5bar 5bar 5.5bar 6bar 7bar 8bar
HPR007DA 3 4 5 6 7 8 8 9 11 12
HPR012DA 5 6 7 10 11 12 13 14 17 19
HPR020DA 8 10 12 16 18 20 22 24 28 32
HPR035DA 15 18 22 29 33 36 40 44 51 58
HPR050DA 20 25 30 40 45 50 55 60 70 80
HPR075DA 31 39 47 63 70 78 86 94 110 125
HPR110DA 45 56 68 90 102 113 124 135 158 181
HPR160DA 66 83 99 132 149 165 182 198 231 264
HPR255DA 100 125 150 200 226 251 276 301 351 401
HPR435DA 171 214 256 342 385 427 470 513 598 684
HPR665DA 266 332 399 532 598 665 731 798 931 1064
HPR1000DA 426 532 638 851 958 1064 1170 1277 1490 1702
HPR1200DA 532 665 798 1064 1197 1330 1463 1596 1862 2128
HPR1800DA 769 962 1154 1539 1731 1924 2116 2308 2693 3078
HPR2700DA 1170 1462 1754 2339 2632 2924 3216 3509 4094 4679
HPR3800DA 1526 1908 2289 3052 3434 3815 4197 4578 5341 6104
HPR5700DA 2285 2856 3427 4570 5141 5712 6283 6354 7997 9139
HPR8000DA 3256 4070 4884 6512 7326 8140 8954 9768 11396 13024

Note:For the single-acting torque table, please refer to the *HITORK Pneumatic Actuator Catalog (V4.0.1—202603--HK)


Model Designation


Information Series Model Action Type Handwheel Spring Ambient Temperature
Code HPR 007 DA-FL Handwheel-SM K8 HT-High Temperature (-20~+100℃)


…… SRC-FC
…… Standard Temperature (-20~+80℃)


8000 SRO-FO
K12 LT-Low Temperature (-40~+80℃)






ULT-Ultra Low Temperature (-60~+40℃)







  • Product Introduction
  • Technical Data
Leave Your Message
  • Company name

  • *Email

  • Whatsapp number

  • *Phone No.

  • *Share your ideas