Airtac SE125 Standard Cylinder SE125X270
The AirTAC Airtac SE125 Standard Cylinder SE125X270 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 SE125X270
The AirTAC SE125X270 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics, delivering 6136 N of push force at 0.5 MPa. Its square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against frames.
This 125 mm bore unit features a PT1/2 port, a 32 mm rod with an M27x2 thread, and field-adjustable air cushions at both ends to soften hard end-stops. Note that this specific SKU lacks a position-sensing magnet, so it operates without CMSE or DMSE switches.
Airtac SE125 Standard Cylinder SE125X270 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X270 |
|---|---|
| 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 SE125X270
| 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 SE125X270 Is Used
Injection Mold Clamping
Provides 6136 N of thrust at 0.5 MPa to secure heavy injection mold halves, utilizing the 270 mm stroke to accommodate varying mold depths.
Press Brake Actuation
Drives heavy-duty press brake tooling where the 32 mm rod and M27x2 thread withstand high side loads during metal bending cycles.
Palletizer Lift Arm
Raises loaded palletizer arms in distribution centers, relying on adjustable end-cushioning to decelerate 125 mm bore forces smoothly at stroke limits.
Is the Airtac SE125 Standard Cylinder SE125X270 the Right Cylinder?
Generating 6136 N of thrust at 0.5 MPa, this 125 mm bore model sits at the top of the SE range. If your application requires less force, stepping down to the 100 mm bore yields 3927 N of push at 0.5 MPa, while the 80 mm bore provides 2513 N. Because this is the largest standard bore, there is no step-up option within the SE line. As a standard double-acting cylinder, it will drift if air pressure is lost; for position holding, consider the BSE rod lock variant. At a 270 mm stroke, the unsupported load is moderate, but external guides are recommended to prevent rod-bearing bending under heavy lateral stress. Being dimensionally interchangeable per ISO 15552, it serves as a direct drop-in replacement for other ISO 15552 cylinders using identical mounting accessories.
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 SE125X270 FAQ
At 0.5 MPa, the SE125X270 delivers 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 of 1252 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552, allowing it to serve as a drop-in replacement for other ISO 15552 cylinders using standard mounting hardware. However, it is a standard double-acting cylinder and will drift if air is lost; for position holding, you need a BSE rod lock or external check valve.
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