Airtac SE125 Standard Cylinder SE125X225S
The AirTAC Airtac SE125 Standard Cylinder SE125X225S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 225mm 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
- Stroke225 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X225S
The AirTAC SE125X225S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. It delivers a substantial 6136 N push force at 0.5 MPa, utilizing a 125 mm bore and a 225 mm stroke. This specific stroke length is a non-standard made-to-order dimension, tailored for specialized machinery requiring exact intermediate travel beyond the standard 200 mm or 250 mm options.
Built with a square extruded aluminum barrel free of external tie rods, the body is highly corrosion-resistant and allows for flush mounting on heavy machinery. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic sensors. Furthermore, the field-adjustable air cushioning at both ends allows technicians to dial in the deceleration of this high-inertia load, softening hard end stops to extend mechanical lifespan.
Airtac SE125 Standard Cylinder SE125X225S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X225S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 225 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 SE125X225S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×225 | 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 SE125X225S Is Used
Automotive Stamping Press
Drives heavy stamping dies with 8590 N push at 0.7 MPa, utilizing the 225 mm stroke to form vehicle body panels.
Plastic Injection Molding
Actuates large mold ejection pins, relying on the 40 mm adjustable cushion to decelerate the 32 mm rod smoothly at stroke end.
Heavy-Duty Metal Bending
Provides the massive 1252 kgf peak force required to bend thick steel plates in structural fabrication machinery.
Is the Airtac SE125 Standard Cylinder SE125X225S the Right Cylinder?
Choosing the SE125X225S means you require maximum thrust within the standard ISO 15552 envelope. If 6136 N push at 0.5 MPa is excessive, stepping down to the 100 mm bore yields 3927 N push, which may suffice for lighter presses. Conversely, this 125 mm bore is the largest available in the SE range, offering a maximum push of 1252 kgf at 1.0 MPa for the most demanding operations. Because this is a non-standard 225 mm stroke, expect a made-to-order lead time. To execute a true drop-in ISO 15552 retrofit, match the 125 mm bore, 225 mm stroke, PT1/2 port, and your required mounting accessory. Keep in mind that a plain SE cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; if static holding is mandatory, specify the BSE rod lock variant instead.
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 SE125X225S FAQ
The SE125X225S 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 reaches 8590 N, with an absolute maximum push of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore is 30-500 mm/s.
No, the adjustable air cushion only decelerates the piston near the end of stroke; it does not lock or hold the load. If air is lost or the valve is centered, the piston will drift. For fail-safe load holding, you need the BSE variant with a mechanical rod lock, or an external pilot-operated check valve.
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