Airtac SE50 Standard Cylinder SE50AX425
The AirTAC Airtac SE50 Standard Cylinder SE50AX425 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 425mm 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
- Stroke425 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50AX425
The AirTAC SE50AX425 is a double-acting, single-rod ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its square extruded aluminum barrel eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while freeing up three full-length sensor grooves for flexible switch placement.
This specific SKU features a SUS420J2 stainless steel piston rod (code A) for superior resistance to moisture and washdown chemicals, making it ideal for food processing or packaging lines. Although it lacks a built-in position magnet, the field-adjustable air cushioning at both ends allows you to tune end-of-stroke deceleration via a simple screw, protecting tooling during high-speed cycling.
Airtac SE50 Standard Cylinder SE50AX425 Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50AX425 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 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 SE50AX425
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | 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 SE50AX425 Is Used
Flow Wrapper Film Splicing
Drives the sealing jaw carriage on continuous flow wrappers, using the 425 mm stroke to cycle the full splicing mechanism while the SUS420J2 rod withstands daily washdowns.
Bottle Divert Gate Actuation
Positions diverter arms on high-speed bottling lines, leveraging 982 N of push force to reliably pivot heavy gate assemblies loaded with glass containers.
Lab Centrifuge Lid Locking
Actuates the heavy safety cover on industrial lab centrifuges, where the stainless steel rod prevents corrosion from chemical spills and ambient humidity.
Is the Airtac SE50 Standard Cylinder SE50AX425 the Right Cylinder?
With a 425 mm stroke, this 50 mm bore cylinder provides 982 N push at 0.5 MPa. If your application requires less force, stepping down to a 40 mm bore yields 628 N push; conversely, scaling up to a 63 mm bore provides 1559 N push for heavier loads. Because this unit has no -S magnet, it cannot support AirTAC CMSE or DMSE position sensors, so you must verify if external limit switches are needed for end-position detection.
At 425 mm, the unsupported stroke length increases the risk of rod-bearing bending under lateral loads. For this configuration, adding an external guide mechanism is strongly recommended to prevent premature seal wear. Remember that the adjustable air cushion only decelerates the piston near the end caps; it does not hold a load if air pressure drops. For position holding, consider a BSE rod lock variant.
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 SE50AX425 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force reaches 1374 N, with a maximum push capacity of 200 kgf at 1.0 MPa. It operates at speeds between 30-800 mm/s.
Yes, the SE50AX425 is dimensionally interchangeable per ISO 15552, meaning it shares the exact mounting footprint and PT1/4 port locations of other ISO 15552 profile cylinders. You can retrofit it using existing FA, FB, or LB mounting accessories without redrilling holes.
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