Airtac SE125 Standard Cylinder SE125X260
The AirTAC Airtac SE125 Standard Cylinder SE125X260 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 SE125X260
The AirTAC SE125X260 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a substantial 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while retaining the standardized ISO 15552 footprint for seamless retrofits.
This 125 mm bore unit utilizes a robust Ø32 mm piston rod with an M27x2 thread, paired with field-adjustable air cushioning at both ends to tame high kinetic energy impacts. Operating at speeds of 30-500 mm/s, this specific SKU is configured without a position sensor magnet, relying instead on its mechanical precision for straightforward actuation.
Airtac SE125 Standard Cylinder SE125X260 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X260 |
|---|---|
| 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 SE125X260
| 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 SE125X260 Is Used
Automotive Stamping Press
Drives heavy lower dies into position in an automotive plant, utilizing the 6136 N push force to secure 260 mm of travel before the high-tonnage hydraulic press cycles.
Injection Mold Ejection
Provides the raw thrust needed to break large molded plastic pallets off core pins, using the robust Ø32 mm rod to withstand initial breakout friction.
Pallet Dispenser Gate
Actuates a heavy-duty mechanical latch on a palletizing line, where the no-tie-rod profile allows the cylinder body to sit flush within a tight structural frame.
Is the Airtac SE125 Standard Cylinder SE125X260 the Right Cylinder?
Selecting the SE125X260 makes sense when your application demands extreme thrust, such as pressing or heavy lifting, requiring its 6136 N push at 0.5 MPa. If you need to step down to lighten the payload and reduce air consumption, the neighboring 100 mm bore offers 3927 N of push force. As the largest standard bore in the SE range, there is no larger neighbor; for even higher force requirements, you must parallel two cylinders or explore custom multi-stage solutions.
Because this is a 260 mm stroke, the unsupported rod length during extension introduces bending moments on the rod bearing; for optimal seal longevity, incorporate an external guide rail to absorb side loads. Remember that the adjustable end cushions only decelerate the piston near stroke end—they do not function as a lock, so any load held vertically will drift if air pressure is lost. To replace an existing unit, match the 125 mm bore, 260 mm stroke, PT1/2 port, and mounting accessory.
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 SE125X260 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125X260 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. You can use it as a drop-in replacement for other ISO 15552 profile cylinders of the same bore and stroke, provided you match the PT1/2 port and mounting hardware.
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