Airtac SE125 Standard Cylinder SE125X115
The AirTAC Airtac SE125 Standard Cylinder SE125X115 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 115mm 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
- Stroke115 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X115
The AirTAC SE125X115 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. It generates a substantial 6136 N of push force at 0.5 MPa and reaches a maximum output of 1252 kgf at 1.0 MPa. The extruded aluminum barrel design omits external tie rods entirely, yielding a smooth, flush exterior that resists dirt accumulation and simplifies direct mounting against machine frames.
This specific SKU is built without a piston magnet, meaning it is not wired for AirTAC CMSE or DMSE position sensors out of the box. To manage the kinetic energy of its 32 mm rod and heavy payloads, the cylinder features field-adjustable pneumatic cushioning at both ends. You can tune the end-of-stroke deceleration via a screw to eliminate hard mechanical impacts, which is critical for maintaining longevity in high-mass cycles.
Airtac SE125 Standard Cylinder SE125X115 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X115 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 115 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 SE125X115
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×115 | 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 SE125X115 Is Used
Stamping Press Ejection
Utilizes the 6136 N push force at 0.5 MPa to reliably knock heavy stamped metal panels out of progressive die sets, replacing bulky hydraulic units with rapid pneumatic cycling.
Automotive Welding Clamp
Applies high clamping pressure on vehicle frame assemblies prior to robotic spot welding, relying on the 40 mm adjustable cushion to soften the impact of the 32 mm rod at stroke end.
Pallet Lift Gate Actuation
Drives the heavy lifting arms of automated pallet changers, where the smooth tie-rod-free profile body allows flush mounting within narrow structural steel frameworks.
Is the Airtac SE125 Standard Cylinder SE125X115 the Right Cylinder?
Choose the SE125X115 when your system requires pushing or lifting loads exceeding 5000 N. If you need slightly less force, the neighboring 100 mm bore yields 3927 N of push at 0.5 MPa, which may suffice for lighter fixtures and saves physical envelope space. If you require even more thrust than this 125 mm bore provides, you would step outside the standard SE range into larger custom actuators. Keep in mind that a plain SE cylinder will drift if air pressure is lost or a valve is centered; for applications that must hold a load safely without live pressure, integrate an external pilot-operated check valve or specify the BSE rod-lock variant.
For any stroke at or above 300 mm, the bending moment on the rod bearing becomes a limiting factor. Although this 115 mm stroke is relatively short, if you deploy this 125 mm bore at longer extensions, always support the load with an external guide to prevent premature seal wear and rod bending.
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 SE125X115 FAQ
At 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range for this 125 mm bore is 30-500 mm/s.
Yes. The SE125X115 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards, meaning it shares the exact mounting footprint, PT1/2 port size, and M27x2 rod thread of other standard profile cylinders, allowing for a drop-in retrofit.
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