Airtac SE50 Standard Cylinder SE50AX250S
The AirTAC Airtac SE50 Standard Cylinder SE50AX250S 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 SE50AX250S
The AirTAC SE50AX250S is a double-acting, single-rod ISO 15552 profile cylinder engineered for demanding environments. Featuring a 50 mm bore and a 250 mm stroke, it delivers a robust 982 N push force at 0.5 MPa and reaches a maximum output of 200 kgf at 1.0 MPa. The extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames without snagging.
This specific configuration integrates a SUS420J2 stainless steel piston rod (option A) for superior resistance to washdown chemicals and moisture. The built-in magnet (option S) enables precise end-position detection using AirTAC CMSE reed or DMSE electronic sensors housed neatly within the three-sided sensor groove. Furthermore, the field-adjustable pneumatic cushioning at both ends allows technicians to dial in end-of-stroke deceleration via a simple screw, softening hard impacts during high-speed operations.
Airtac SE50 Standard Cylinder SE50AX250S Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50AX250S |
|---|---|
| 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 SE50AX250S
| 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 SE50AX250S Is Used
Palletizer Case Pusher
Ideal for pushing filled cartons onto palletizer tiers, where the 982 N push force easily overcomes box friction and the SUS420J2 rod resists humid packing plant environments.
Lab Washdown Diverter
Perfectly suited for routing fluid lines on pharmaceutical skids, utilizing the corrosion-resistant stainless rod and a 250 mm stroke to actuate heavy flow panels.
CNC Lathe Door Shuttle
Deploys the 250 mm stroke to slide heavy machine tool safety doors, relying on DMSE electronic sensors to confirm door closure before the cycle begins.
Is the Airtac SE50 Standard Cylinder SE50AX250S the Right Cylinder?
When sizing this actuator, compare its 982 N push at 0.5 MPa against neighboring bores to ensure optimal performance. Stepping down to a 40 mm bore reduces the push to 628 N, while moving up to a 63 mm bore increases it to 1559 N, giving you clear scaling options if your payload margins are too tight or too generous. Because this is a 250 mm stroke, the unsupported piston rod is susceptible to bending under lateral loads; always pair it with an external guide rail to prevent rod-bearing wear.
As a true ISO 15552 profile cylinder, the SE50AX250S is dimensionally interchangeable with other ISO 15552 cylinders, allowing you to drop it directly into existing footprints (LB, FA, TC) without machining new mounting plates. Note that the standard air cushion only decelerates the piston near the stroke ends; it does not hold the load. If your application must maintain position without live air pressure, specify a BSE rod lock variant or use an external pilot-operated check valve.
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 SE50AX250S FAQ
The SE50AX250S has a PT1/4 port and a 20 mm rod. At 0.5 MPa it provides 982 N of push force and 825 N of pull force. At 0.7 MPa the push force is 1374 N, and it reaches a maximum push of 200 kgf at 1.0 MPa.
Yes. The SE50AX250S shares standard ISO 15552 mounting dimensions, making it a drop-in replacement for other ISO 15552 profile cylinders. You can reuse existing FA front flanges or LB foot mounts, and the built-in magnet works directly with AirTAC CMSE and DMSE sensors.
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