Airtac SE125 Standard Cylinder SE125X455SN
The AirTAC Airtac SE125 Standard Cylinder SE125X455SN is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 455mm 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
- Stroke455 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X455SN
The AirTAC SE125X455SN is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a robust 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel completely eliminates external tie rods, yielding a highly compact, corrosion-resistant body that mounts flush against machine frames without protruding hardware.
This 125 mm bore unit features a field-adjustable air cushion at both ends, allowing technicians to fine-tune end-of-stroke deceleration via a set screw to prevent hard impact damage. Equipped with an NBR seal and a built-in magnet, it seamlessly integrates with AirTAC CMSE reed and DMSE electronic sensors for precise position detection across its 455 mm stroke.
Airtac SE125 Standard Cylinder SE125X455SN Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X455SN |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 455 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 SE125X455SN
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×455 | 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 SE125X455SN Is Used
Injection Mold Ejection
Provides the 6136 N push force required to eject heavy automotive plastic injection molds over a 455 mm stroke, utilizing the NBR seal for reliable operation in heated industrial environments.
Press Brake Tooling
Drives heavy-duty press brake clamps and bending fixtures where the massive 125 mm bore output ensures rigid, deflection-free metal forming across long strokes.
Pallet Lift Actuation
Actuates robust lifting arms in automated end-of-line palletizing systems, where the built-in magnet pairs with DMSE sensors to confirm vertical travel positions under heavy loads.
Is the Airtac SE125 Standard Cylinder SE125X455SN the Right Cylinder?
Delivering 6136 N of thrust at 0.5 MPa, this 125 mm bore cylinder is the largest in the SE lineup, making it the definitive choice when maximum pneumatic force is required. If your application sits on the edge, stepping down to the 80 mm bore variant yields 2513 N of push force, offering a lighter, faster 30-800 mm/s cycle speed compared to this model's 30-500 mm/s rate. Because 455 mm is a substantial stroke length, the Ø32 mm rod and internal bearing face significant bending moments under heavy lateral loads; always incorporate an external guide rail to prevent premature wear. As a standard ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for comparable ISO 15552 cylinders, utilizing a PT1/2 port and standard mounting accessories. Note that the adjustable cushion only decelerates the piston near the end caps and will not hold a load if air pressure is lost.
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 SE125X455SN FAQ
The SE125X455SN generates 6136 N of push force and 5734 N of pull force at 0.5 MPa. At 0.7 MPa, the push force reaches 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore cylinder is 30-500 mm/s.
Yes, the SE125X455SN is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards, acting as a drop-in replacement for other ISO 15552 profile cylinders. It utilizes a PT1/2 port, a Ø32 mm rod with an M27x2 thread, and its built-in magnet works seamlessly with AirTAC CMSE and DMSE sensors.
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