Airtac SE125 Standard Cylinder SE125X5
The AirTAC Airtac SE125 Standard Cylinder SE125X5 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 5mm stroke, PT1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke5 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X5
The AirTAC SE125X5 is a double-acting single-rod ISO 15552 profile cylinder engineered for high-force duties in tight spaces. Operating at 0.5 MPa, it yields 6136 N of push force and 5734 N of pull, scaling to a maximum output of 1252 kgf at 1.0 MPa. The extruded aluminum barrel omits external tie rods, yielding a flush exterior that simplifies mounting and resists corrosion.
This specific SKU lacks the -S magnet, meaning it operates without electronic or reed position feedback. To decelerate heavy 125 mm pistons at the stroke ends, the cylinder relies on a field-adjustable air cushion at both ends with a 40 mm stroke absorption length. Operators can tune this cushion via a set screw to soften impacts, ensuring smooth stops even at rapid cycle rates.
Airtac SE125 Standard Cylinder SE125X5 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X5 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE125 Standard Cylinder SE125X5
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×5 | 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 SE125 Standard Cylinder SE125X5 Is Used
Stamping Press Ejection
Uses the 6136 N push force at 0.5 MPa to knock heavy sheet metal blanks out of progressive die sets in automotive lines.
Pallet Flap Folding
Leverages the short 5 mm stroke to tuck corrugated carton flaps rapidly prior to strapping, maximizing throughput.
Injection Mold Clamping
Provides auxiliary high-force holding power to secure mold halves against hydraulic pressure, utilizing the 1252 kgf maximum output.
Is the Airtac SE125 Standard Cylinder SE125X5 the Right Cylinder?
Selecting this 125 mm bore is appropriate when the 80 mm class (2513 N push at 0.5 MPa) is insufficient for your heavy pressing or clamping demands. As the largest standard SE size, there is no larger neighbor to step up to; if 6136 N is not enough, you must parallel cylinders or switch to a different mechanism. Because this is a 5 mm stroke, side-loading on the 32 mm rod is minimal, but always ensure the load is rigidly guided externally.
This SE125X5 is dimensionally interchangeable per ISO 15552, allowing a direct drop-in replacement for other ISO 15552 cylinders using the same PT1/2 port and M27x2 rod thread. Remember that a standard double-acting cylinder drifts when air pressure is lost; if your application must hold a 1252 kgf load safely during an exhaust or emergency stop, integrate an external rod lock like the AirTAC BSE series.
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 SE125 Standard Cylinder SE125X5 FAQ
At 0.5 MPa, the SE125X5 delivers 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N. The maximum push force is 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore is 30-500 mm/s.
This specific SE125X5 SKU does not include the -S magnet, so it cannot host CMSE reed or DMSE electronic sensors for position detection. If your application requires end-of-stroke signaling, you must select the -S option variant or use external mechanical limit switches.
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