Airtac SE125 Standard Cylinder SE125X320S
The AirTAC Airtac SE125 Standard Cylinder SE125X320S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 320mm 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
- Stroke320 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X320S
The AirTAC SE125X320S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a substantial 6136 N push at 0.5 MPa. Its extruded aluminum square barrel omits external tie rods, yielding a flush, corrosion-resistant exterior that simplifies mounting and reduces debris buildup in demanding plants.
Equipped with a built-in magnet (-S), this unit directly supports AirTAC CMSE reed and DMSE electronic position sensors for precise end-of-stroke verification. The field-adjustable air cushioning at both ends allows technicians to tune the deceleration of the 32 mm rod, softening hard impacts when moving massive loads across the 320 mm stroke.
Airtac SE125 Standard Cylinder SE125X320S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X320S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 320 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 SE125X320S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×320 | 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 SE125X320S Is Used
Stamping Press Feed
Drives heavy coil feeding arms into a mechanical press, utilizing the 6136 N push at 0.5 MPa to shift bulk steel coils accurately along the 320 mm stroke.
Injection Mold Ejector
Provides the high breakout force needed to free large molded plastic parts from injection dies, relying on the 125 mm bore and adjustable cushioning to soften end stops.
Pallet Lift Gate
Actuates heavy industrial lift gates on automated palletizers, moving substantial weight smoothly at 30-500 mm/s while tracking position via the DMSE electronic sensor.
Is the Airtac SE125 Standard Cylinder SE125X320S the Right Cylinder?
Selecting this 125 mm bore provides a maximum thrust of 1252 kgf at 1.0 MPa, stepping up significantly from the 100 mm bore which offers 3927 N push at 0.5 MPa; as the largest standard size, it anchors the top of the SE range for high-force applications. Because the 320 mm stroke generates leverage, an external guide is recommended to prevent rod-bearing bending under heavy side loads.
For drop-in retrofits, the standardized ISO 15552 mounting interface ensures dimensional interchangeability with other profile cylinders, utilizing the PT1/2 port and compatible mounting accessories. Note that the adjustable air cushion only decelerates the piston near stroke end and does not lock the load; if position holding is required without live air pressure, consider the BSE rod lock variant.
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 SE125X320S FAQ
The SE125X320S delivers a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N, with a maximum push of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore is 30-500 mm/s.
Yes, the SE125X320S is dimensionally interchangeable per ISO 15552 standards, meaning it shares the same mounting footprint and PT1/2 port size as other standard profile cylinders. You can use your existing mounting hardware and pair the built-in magnet with AirTAC CMSE or DMSE sensors for seamless integration.
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