Airtac SE125 Standard Cylinder SE125X260S
The AirTAC Airtac SE125 Standard Cylinder SE125X260S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 260mm 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
- Stroke260 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X260S
The AirTAC SE125X260S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics. Operating at 0.5 MPa, it delivers a formidable 6136 N push force and 5734 N pull force, scaling to a maximum of 1252 kgf at 1.0 MPa. The 125 mm bore pairs with a 260 mm stroke to power high-inertia loads reliably.
Unlike traditional round-body or tie-rod actuators, this model uses an extruded aluminum barrel without external tie rods, yielding a compact, corrosion-resistant profile that mounts flush against machine frames. The built-in -S magnet enables direct integration with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection across automated equipment.
Airtac SE125 Standard Cylinder SE125X260S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X260S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 260 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 SE125X260S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×260 | 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 SE125X260S Is Used
Heavy Palletizer Strapping
Delivering 6136 N of thrust at 0.5 MPa, this cylinder drives the heavy-duty strapping and sealing heads on automated palletizers, securely tensioning steel bands around massive shipping loads.
Injection Mold Ejection
The 260 mm stroke provides the precise extraction length needed to pull large injection-molded automotive interior panels from deep cavities, utilizing the 32 mm rod to resist deflection.
Press Brake Actuation
With a maximum output of 1252 kgf at 1.0 MPa, this ISO 15552 cylinder actuates the heavy clamping mechanisms on industrial press brakes, holding plate steel firmly for bending operations.
Is the Airtac SE125 Standard Cylinder SE125X260S the Right Cylinder?
Generating 6136 N of push at 0.5 MPa, this 125 mm bore actuator is the largest standard size in the SE line. If your machinery requires less force, stepping down to the 100 mm bore yields 3927 N push at 0.5 MPa, which may better suit lighter loads and save space. Because 125 mm is the maximum available bore, applications needing more thrust require parallel cylinder configurations.
The 260 mm stroke falls below the 1500 mm maximum standard stroke, making this a readily available size. The PT1/2 port handles high airflow to maintain the 30-500 mm/s speed range. Remember that the field-adjustable air cushion at both ends only decelerates the piston near stroke end; it does not hold a load. If your system loses air pressure, the rod will drift, requiring an external guide or a BSE rod lock for fail-safe position holding.
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 SE125X260S FAQ
The SE125X260S generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s, controlled via a PT1/2 port.
Yes. The SE125X260S is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards, meaning it shares the exact same mounting footprint and pin dimensions as other compliant cylinders. The extruded profile barrel lacks external tie rods, simplifying retrofit and flush mounting.
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