Airtac SE125 Standard Cylinder SE125X135
The AirTAC Airtac SE125 Standard Cylinder SE125X135 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 135mm 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
- Stroke135 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X135
The AirTAC SE125X135 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. Operating at 0.5 MPa, it provides a substantial 6136 N push force and 5734 N pull force, making it well-suited for high-load industrial automation. The extruded aluminum barrel design omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machinery frames.
This 125 mm bore unit features a PT1/2 port and a robust Ø32 mm piston rod with an M27x2 thread. It is equipped with field-adjustable air cushioning at both ends to decelerate the payload smoothly. This specific SKU is built without a position-sensing magnet, so it operates without CMSE or DMSE electronic switches.
Airtac SE125 Standard Cylinder SE125X135 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X135 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 135 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 SE125X135
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×135 | 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 SE125X135 Is Used
Automotive Press Die Handling
Leveraging its 6136 N push force at 0.5 MPa, this cylinder shifts heavy stamping dies and fixtures into position within automotive assembly lines, utilizing its 135 mm stroke for precise clamping.
Heavy Metal Plate Bending
The robust Ø32 mm rod and 8590 N push force at 0.7 MPa provide the rigidity needed to form and bend thick metal plates in structural steel fabrication processes.
Injection Mold Clamping
Using its ISO 15552 standardized mounting interface, this cylinder secures large injection molding halves, relying on its adjustable air cushions to soften the 135 mm stroke impact.
Is the Airtac SE125 Standard Cylinder SE125X135 the Right Cylinder?
When sizing this model, consider stepping down to the 100 mm bore if your application only requires 3927 N of push force at 0.5 MPa, or stepping up to a larger custom multi-stage solution if you exceed the 125 mm bore's maximum 1252 kgf limit at 1.0 MPa. Because this is a standard 135 mm stroke, it falls well within the 1500 mm maximum standard stroke limit, meaning no custom long-stroke surcharges apply.
As a double-acting cylinder, the SE125X135 relies on continuous air pressure to hold a load; if air is exhausted or the valve is centered, the piston will drift. For applications requiring true position holding without live pressure, explore the BSE series with an integrated rod lock. Additionally, the heavy 1252 kgf capacity combined with a 135 mm stroke means the M27x2 rod and bearing can experience significant bending under extreme side loads, so an external guide rail is recommended to prevent premature wear.
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 SE125X135 FAQ
The SE125X135 generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force reaches 8590 N. The absolute maximum push force is 1252 kgf when operated at the maximum 1.0 MPa pressure.
Yes, the SE125X135 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. Its square extruded aluminum profile and standardized mounting dimensions allow it to serve as a drop-in replacement for other ISO 15552 profile cylinders, sharing the same mounting hardware footprint.
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