Airtac SE125 Standard Cylinder SE125X65
The AirTAC Airtac SE125 Standard Cylinder SE125X65 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 65mm 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
- Stroke65 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X65
The AirTAC SE125X65 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic applications. Featuring a 125 mm bore and a 65 mm stroke, it delivers a substantial push force of 6136 N at 0.5 MPa and up to 8590 N at 0.7 MPa. The extruded aluminum barrel design omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush in tight machinery spaces.
This specific SKU operates without a built-in position-sensing magnet, relying instead on its mechanical robustness. The field-adjustable air cushioning at both ends allows technicians to fine-tune end-of-stroke deceleration via a set screw, actively dissipating kinetic energy rather than relying on a fixed bumper. With a PT1/2 port and a robust Ø32 mm rod, it is built to handle high-impact cycles within the 30-500 mm/s speed range.
Airtac SE125 Standard Cylinder SE125X65 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X65 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 65 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 SE125X65
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×65 | 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 SE125X65 Is Used
Injection Mold Ejection
Provides 6136 N of thrust at 0.5 MPa to forcefully eject large automotive interior panels from heavy steel molds, utilizing the adjustable cushion to soften the final stop.
Stamping Press Feed
Drives a heavy feed mechanism in a metal stamping line, using its 1252 kgf maximum push capacity to advance thick steel coils through a straightener.
Wood Panel Pressing
Applies uniform clamping pressure on multi-layer wood veneer presses, where the square profile barrel allows flush side mounting to save vertical space.
Is the Airtac SE125 Standard Cylinder SE125X65 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 moving up if you need maximum thrust—the 125 mm bore is the largest in the SE line, peaking at 1252 kgf under 1.0 MPa. Because this SKU lacks the -S magnet, it cannot host CMSE or DMSE position sensors; if your sequence requires electronic or reed-switch feedback, specify an SE125X65S variant instead. Also, note that a plain double-acting cylinder drifts when air is exhausted or the valve is centered; it cannot hold a load without live pressure, so specify a BSE rod lock for fail-safe holding. For any stroke of 300 mm or more, the unsupported rod length increases bending moments on the guide bearing, requiring an external guide to prevent side-load damage.
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 SE125X65 FAQ
The SE125X65 generates 6136 N of push force and 5734 N of pull force at 0.5 MPa. At 0.7 MPa, the push force is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. It uses a PT1/2 port and features a 40 mm cushion length.
Yes, the SE125X65 is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact same mounting footprint and rod thread dimensions (M27x2) as other ISO 15552 profile cylinders, allowing for seamless retrofits.
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