Airtac SE125 Standard Cylinder SE125X55S
The AirTAC Airtac SE125 Standard Cylinder SE125X55S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 55mm 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
- Stroke55 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X55S
The AirTAC SE125X55S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. Operating at 0.5 MPa, it generates a substantial 6136 N of push force and 5734 N of pull force, making it well-suited for high-load industrial automation. The 55 mm stroke is housed within a square extruded aluminum barrel that completely eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machinery frames.
Equipped with a built-in magnet (-S), this model seamlessly integrates with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. To absorb the kinetic energy of its heavy 125 mm piston at speeds up to 500 mm/s, the cylinder incorporates field-adjustable air cushioning at both ends. By turning a simple screw, technicians can tune the end-of-stroke deceleration to eliminate hard impacts, extending the cylinder's operational lifespan in demanding environments.
Airtac SE125 Standard Cylinder SE125X55S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X55S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 55 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 SE125X55S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×55 | 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 SE125X55S Is Used
Injection Mold Clamping
Delivers 6136 N of push force at 0.5 MPa to secure heavy injection mold halves during material injection, utilizing the 55 mm stroke for rapid, high-pressure actuation.
Heavy Gauge Metal Forming
Provides the robust 5734 N pull force required to draw and bend thick sheet metal in hydraulic press setups, with adjustable cushioning to smooth the rapid 500 mm/s end stops.
Pallet Stopper Arms
Acts as a heavy-duty stopping mechanism on high-capacity conveyor lines, using its built-in magnet to trigger DMSE sensors and halt loaded pallets securely.
Is the Airtac SE125 Standard Cylinder SE125X55S the Right Cylinder?
When sizing this 125 mm bore model, consider stepping down to the 80 mm bore if your application only requires 2513 N of push at 0.5 MPa, as the SE125X55S provides a massive 6136 N. As the largest standard bore in the SE series, there is no larger step-up option available within this family. The PT1/2 port and M27x2 rod thread handle significant flow and side-load capacities, but for any stroke exceeding 300 mm, an external guide is recommended to prevent rod-bearing bending. Note that while the adjustable cushion softens end stops, this standard cylinder will drift if air pressure is lost; for positive load holding, explore the BSE rod lock variant. As a true ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders, sharing 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 SE125X55S FAQ
The SE125X55S 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, and it achieves a maximum push of 1252 kgf at 1.0 MPa.
Yes, the SE125X55S is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact same mounting interface and footprint as other ISO 15552 profile cylinders, allowing for seamless retrofits.
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