Airtac SE125 Standard Cylinder SE125X155
The AirTAC Airtac SE125 Standard Cylinder SE125X155 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 155mm 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
- Stroke155 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X155
The AirTAC SE125X155 is a double-acting single-rod ISO 15552 profile cylinder built for heavy-duty motion. It generates 6136 N of push force and 5734 N of pull force at 0.5 MPa, scaling to a maximum push of 1252 kgf at 1.0 MPa. The 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 hard-chrome rod, and a 40 mm adjustable air cushion at both ends. Because this SKU lacks the -S magnet option, it does not support CMSE or DMSE position sensors out of the box. The field-adjustable cushioning lets you dial in end-of-stroke deceleration to soften hard impacts at high speeds.
Airtac SE125 Standard Cylinder SE125X155 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X155 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 155 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 SE125X155
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×155 | 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 SE125X155 Is Used
Injection Mold Clamping
Provides 6136 N of push at 0.5 MPa to secure heavy injection mold halves, utilizing the 155 mm stroke to clear the tooling during part ejection.
Press Brake Actuation
Drives the upper beam on heavy gauge press brakes, where the 125 mm bore and adjustable 40 mm cushions absorb the high kinetic energy of rapid approach speeds.
Pallet Dispenser
Lifts and separates stacked pallets in high-speed packaging lines, relying on the robust 32 mm rod to manage the heavy dynamic weight of wooden pallets.
Is the Airtac SE125 Standard Cylinder SE125X155 the Right Cylinder?
With a 6136 N push at 0.5 MPa, this bore handles substantial loads. If you need less force, stepping down to the 100 mm bore yields 3927 N of push. If you require more power, the 125 mm is the largest standard SE size, so you would parallel cylinders or explore larger custom units. Since this stroke is 155 mm, you are below the 300 mm side-load threshold, but the heavy 32 mm rod still handles moderate bending well.
As a true ISO 15552 cylinder, it is dimensionally interchangeable with other ISO 15552 profile cylinders, allowing you to reuse existing mounting hardware like FA front flanges or TC trunnions. Note that a plain SE cylinder does not hold its position when air is exhausted; if your process needs fail-safe load holding, consider the BSE rod lock variant.
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 SE125X155 FAQ
At 0.5 MPa, the SE125X155 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. The SE125X155 is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact mounting footprint and PT1/2 port locations of other ISO 15552 profile cylinders. You can drop it into existing machinery without modifying the frame.
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