The XLX Crank-Arm Piston Pneumatic Actuator is designed for reliable automation of quarter-turn and other rotary valves. When compressed air enters the cylinder, it drives the piston in a linear motion. The linear piston movement is then converted into rotary motion of the output shaft through the connecting rod and crank-arm mechanism, enabling precise valve opening and closing.
The actuator features high reversing accuracy, stable sealing performance and fast response, making it well suited for automated control of quarter-turn valves. Its robust mechanical design provides reliable operation and precise directional control in demanding industrial applications.
With a wide output torque range and comprehensive size options, the XLX crank-arm piston actuator can also be used for valve applications requiring higher output torque. Its versatile configuration makes it suitable for ball valves, butterfly valves, plug valves and other quarter-turn valves, providing a flexible pneumatic actuation solution for a wide range of industrial valve automation requirements.
A pneumatic actuator converts the energy of compressed air into mechanical motion, enabling the valve to open, close, or continuously modulate its position for reliable and automated valve control. For pneumatic actuator selection and procurement, please contact our technical team and provide the relevant operating parameters so that we can recommend the most suitable actuator model for your application. （Unit: mm）
| Size | Part No | L | L1 | H | H1 | Z | X | Y | Ma | B | Mb | d | h | G-NPT | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XD36 | XLXLD36-63D | 390 | 270 | 115 | 59 | 26 | 80 | 30 | M6 | 70 | 4-M8 | 16 | 5 | 1/4 | |
| XD37 | XLXLD36-80D | 395 | 275 | 115 | 59 | 26 | 80 | 30 | M6 | 70 | 4-M8 | 20 | 6 | 1/4 | |
| XD45 | XLXLD45-80D | 440 | 296 | 124 | 64 | 26 | 80 | 30 | M6 | 70 | 4-M8 | 16 | 5 | 1/4 | |
| XD46 | XLXLD45-100D | 445 | 300 | 124 | 64 | 26 | 80 | 30 | M6 | 70 | 4-M8 | 20 | 6 | 1/4 | |
| XD55 | XLXLD55-125D | 507 | 343 | 129 | 67 | 26 | 80 | 30 | M6 | 102 | 4-M10 | 20/30 | 6/8 | 1/4 | |
| XD63 | XLXLD63-160D | 617 | 418 | 164 | 83 | 26 | 130 | 30 | M6 | 125 | 4-M12 | 30/35 | 8/10 | 3/8 | |
| XD64 | XLXLD63-200D | 625 | 426 | 164 | 83 | 26 | 130 | 30 | M6 | 125 | 4-M12 | 30/35 | 10/12 | 3/8 | |
| XD80 | XLXLD80-200D | 742 | 502 | 198 | 100 | 26 | 130 | 30 | M6 | 140 | 4-M16 | 40/45 | 12/14 | 3/8 | |
| XD81 | XLXLD80-250D | 750 | 510 | 198 | 100 | 26 | 130 | 30 | M6 | 140 | 4-M16 | 55/60 | 16/18 | 3/8 | |
| XD100 | XLXLD100-250D | 900 | 605 | 251 | 125 | 26 | 130 | 30 | M6 | 165 | 4-M20 | 50/55 | 14/16 | 3/8 | |
| XD101 | XLXLD100-300D | 900 | 605 | 251 | 125 | 26 | 130 | 30 | M6 | 165 | 4-M20 | 65/70 | 18/20 | 3/8 | |
| XD125 | XLXLD125-300D | 1150 | 758 | 300 | 147 | 26 | 130 | 30 | M6 | 254 | 8-M16 | 60/70 | 18/20 | 3/8 | |
| XD126 | XLXLD125-350D | 1155 | 763 | 300 | 147 | 26 | 130 | 30 | M6 | 254 | 8-M16 | 90/100 | 25/28 | 1/2 | |
Key Features of XLX Crank-Arm Piston Pneumatic Actuator
High rotary precision: High-precision bearings installed at all rotating positions.
Long service life: Small-size models adopt aluminum alloy cylinders with special wear-resistant inner surface treatment. The piston rod is hard chrome-plated and mirror-finished. The piston is guided by wear strips with dual sealing structure.
Strong shock resistance: Integrally cast crank arm delivers high structural strength and stability.
Flexible stroke adjustment: Adjustable stop bolts on both sides. Both 0° and 90° positions can be adjusted within ±10°.
Enhanced safety: Single-acting version equipped with anti-spring-ejection structure.
Flexible & cost-effective selection: Housings and cylinder assemblies can be combined according to torque requirements, offering abundant torque grades.
Fast on/off capability: Enables rapid valve opening and closing when matched with pneumatic accessories.
Variable torque output: Peak torque occurs at the start of stroke, exceeding nominal rated torque to overcome valve seating friction and improve safety margin.
