Airtac SE50 Standard Cylinder SE50AX125S
The AirTAC Airtac SE50 Standard Cylinder SE50AX125S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 125mm stroke, PT1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke125 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50AX125S
The AirTAC SE50AX125S is a double-acting single-rod ISO 15552 profile cylinder engineered for a 50 mm bore and 125 mm stroke. It delivers a robust 982 N push force at 0.5 MPa, utilizing a PT1/4 port and a 20 mm stainless steel rod. Because this variant uses the SUS420J2 rod material, it is specifically built for corrosive environments and washdown duty rather than standard dry industrial air.
The extruded aluminum barrel lacks external tie rods, yielding a compact footprint that mounts flush against machine frames while resisting surface corrosion. Field-adjustable pneumatic cushioning at both ends allows you to tune end-of-stroke deceleration via a set screw, softening hard impacts when cycling at speeds up to 800 mm/s. The integrated magnet also enables precise position detection using AirTAC CMSE reed or DMSE electronic sensors along the three-sided sensor groove.
Airtac SE50 Standard Cylinder SE50AX125S Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50AX125S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C (0–150 °C with FKM seals) |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SE series datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE50 Standard Cylinder SE50AX125S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting: Basic, LB, FA, FB, CA, CB, CR, TC, FTC, TCM1, TCM2. Related SE-family variants: SED (double rod), SEJ (adjustable stroke), BSE (rod lock), BSED (double-rod rod lock).
Where the Airtac SE50 Standard Cylinder SE50AX125S Is Used
Bottling Line Diverter
Handles washdown exposure on beverage lines using its SUS420J2 stainless rod, providing 982 N push to actuate routing gates for 125 mm travel.
Carton Flap Folder
Folds corrugated cardboard flaps on continuous packaging machines, utilizing the 30 mm adjustable cushion to soften end stops at high cycle rates.
Pallet Stopper Arm
Deploys a 125 mm stroke stop block to arrest pallets on a conveyor, relying on the integrated magnet to trigger DMSE electronic sensors for indexing.
Is the Airtac SE50 Standard Cylinder SE50AX125S the Right Cylinder?
This 50 mm bore provides 982 N of push force at 0.5 MPa. If your application requires less force, the 40 mm bore offers 628 N of push, while stepping up to the 63 mm bore yields 1559 N. Remember that the adjustable air cushion only decelerates the piston near stroke end; it does not lock or hold a load. If your machinery loses air pressure, the rod will drift, requiring an external guide or a BSE rod-lock variant for true position holding.
For ISO 15552 dimensional interchangeability, you can drop-in replace existing cylinders using the same 50 mm bore, 125 mm stroke, PT1/4 port, and standard mounting hardware. At 125 mm stroke, side-load stress on the rod bearing remains moderate, but always verify that your external guide supports any lateral moments.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SE50 Standard Cylinder SE50AX125S FAQ
This 50 mm bore cylinder delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a maximum push of 200 kgf at 1.0 MPa. It operates at speeds between 30 and 800 mm/s.
Yes, the SE50AX125S is dimensionally interchangeable per ISO 15552 mounting dimensions. It includes a built-in magnet (-S) designed to work seamlessly with AirTAC CMSE reed and DMSE electronic sensors mounted in the body's sensor groove.
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