Airtac SE125 Standard Cylinder SE125X270S
The AirTAC Airtac SE125 Standard Cylinder SE125X270S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 270mm 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
- Stroke270 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X270S
The AirTAC SE125X270S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics, delivering a substantial 6136 N push force at 0.5 MPa. Its extruded aluminum barrel omits external tie rods, yielding a flush, corrosion-resistant body that mounts cleanly to machine frames while maintaining the standardized ISO 15552 footprint for direct retrofitting.
Equipped with a built-in magnet (-S), this 125 mm bore unit interfaces seamlessly with AirTAC CMSE reed and DMSE electronic sensors along its three-side sensor grooves. The field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration, softening the impact of massive 1252 kgf maximum loads without relying on fixed rubber bumpers.
Airtac SE125 Standard Cylinder SE125X270S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X270S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 270 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 SE125X270S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×270 | 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 SE125X270S Is Used
Heavy Press Strokes
Drives the primary forming press in automotive stamping lines, utilizing the 6136 N push force to shape thick-gauge sheet metal over a 270 mm stroke.
Pallet Lifting Arms
Actuates heavy-load lifting arms on automated palletizers, where the rigid Ø32 mm rod and 1252 kgf maximum capacity handle dense inventory transitions.
Injection Mold Ejection
Ejects dense plastic components from injection molding machinery, relying on the 40 mm adjustable cushion to safely stop the 8590 N dynamic load at 0.7 MPa.
Is the Airtac SE125 Standard Cylinder SE125X270S the Right Cylinder?
Selecting the SE125X270S places you at the top of the standard AirTAC range, where the 125 mm bore yields 6136 N of thrust at 0.5 MPa. If your application requires slightly less force, stepping down to the 100 mm bore yields 3927 N push, but since 125 mm is the largest standard SE size, any further capacity increase would require a custom or non-standard solution. For this 270 mm stroke, the robust Ø32 mm rod and M27x2 thread provide excellent rigidity, but at 270 mm of unsupported length, you should evaluate side-load forces and incorporate an external guide to prevent rod-bearing bending.
This model functions strictly as a double-acting actuator; the adjustable air cushion only decelerates the piston near the stroke ends and does not lock or hold the load. If air pressure is lost or the directional valve is centered, the load will drift, requiring an external rod lock or pilot-operated check valve for position holding. It serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 cylinders, utilizing a PT1/2 port and standard mounting hardware.
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 SE125X270S 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 reaches 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 SE125X270S is dimensionally interchangeable per ISO 15552 standards. It shares the standardized mounting interface and PT1/2 port sizing, allowing it to serve as a direct drop-in replacement for other ISO 15552 profile cylinders without modifying the existing frame.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SE125 Standard Cylinder SE125X270S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.