Airtac SE50 Standard Cylinder SE50AX250
The AirTAC Airtac SE50 Standard Cylinder SE50AX250 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50AX250
The AirTAC SE50AX250 is a double-acting, single-rod ISO 15552 profile cylinder delivering 982 N of push force at 0.5 MPa and a maximum of 200 kgf at 1.0 MPa. It features a 50 mm bore, 250 mm stroke, and a PT1/4 port. The square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames.
This specific SKU uses an SUS420J2 stainless steel piston rod (code A) for corrosive or washdown environments. The field-adjustable air cushion at both ends lets you tune end-of-stroke deceleration via a set screw, softening hard mechanical stops at operating speeds up to 800 mm/s. As a standard VDMA 24562 profile body, it is dimensionally interchangeable with other ISO 15552 cylinders for direct retrofits.
Airtac SE50 Standard Cylinder SE50AX250 Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50AX250 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SE50AX250
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 SE50AX250 Is Used
Pouch Spout Insertion
Drives a vertical insertion head on a packaging line, using the 982 N push force at 0.5 MPa to press spouts into premade pouches.
Bottle Lane Diverting
Actuates a pivoting guide rail flap to separate continuous product flow on a conveyor, benefiting from the SUS420J2 rod in washdown zones.
CNC Lathe Unloader
Pushes finished turned parts out of a CNC lathe spindle, utilizing the 250 mm stroke to clear the work area before the bar feeder advances.
Is the Airtac SE50 Standard Cylinder SE50AX250 the Right Cylinder?
At 0.5 MPa, this 50 mm bore generates 982 N of push force. If you need less clamping pressure, stepping down to the 40 mm bore yields 628 N. If your load requires more thrust, stepping up to the 63 mm bore provides 1559 N. Keep in mind that a plain SE cylinder does not hold its position or load when air is lost or the valve is centered; the piston will drift. For position holding without live pressure, consider the BSE rod lock variant or an external pilot-operated check valve.
For a 250 mm stroke, the 20 mm diameter rod and M16x1.5 thread handle moderate side loads, but long unsupported strokes invite rod-bearing bending. If the mechanism experiences lateral thrust, use an external guide rail to prevent premature seal wear. To replace an existing unit, match the 50 mm bore, 250 mm stroke, PT1/4 port, and mounting accessory. Note that this SKU lacks the S magnet, so it cannot host CMSE or DMSE position sensors without modifying the build.
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 SE50AX250 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At 0.7 MPa, the push force is 1374 N. The maximum push force is 200 kgf at 1.0 MPa.
Yes. The SE50AX250 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards, meaning it shares the exact same mounting interface and footprint as other standard profile cylinders. You can swap it in by matching the 50 mm bore, 250 mm stroke, and PT1/4 port size.
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