Airtac SE125 Standard Cylinder SE125X25
The AirTAC Airtac SE125 Standard Cylinder SE125X25 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 25mm 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
- Stroke25 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X25
The AirTAC SE125X25 is a double-acting, single-rod profile cylinder built to the ISO 15552 / VDMA 24562 standard. Featuring a robust 125 mm bore and a 25 mm stroke, it generates a substantial 6136 N of push force at 0.5 MPa and up to 8590 N at 0.7 MPa. The extruded aluminum barrel design omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while protecting internal mechanics.
This specific SKU is configured without a built-in magnet, meaning it does not support CMSE or DMSE position sensors out of the box. Deceleration at the 40 mm cushion stroke is managed by a field-adjustable air cushion at both ends, allowing technicians to dial out hard end-stop impacts during high-mass cycling. For operations requiring pneumatic locking during air loss, this base model should be paired with a BSE variant or an external rod lock.
Airtac SE125 Standard Cylinder SE125X25 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X25 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 25 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 SE125X25
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×25 | 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 SE125X25 Is Used
Injection Mold Ejection
Provides the 6136 N push at 0.5 MPa required to knock out heavy molded plastic parts from deep cavities during automated ejection sequences.
Heavy Press Stamping
Handles short-stroke, high-impact metal forming tasks where the 125 mm bore delivers reliable clamping force for bending thick gauge materials.
Pallet Stopper Gates
Acts as a heavy-duty stop block in high-throughput packaging lines, using its 25 mm stroke to halt fully loaded pallets weighing over a ton.
Is the Airtac SE125 Standard Cylinder SE125X25 the Right Cylinder?
At 125 mm, this is the largest standard SE bore, so stepping up requires moving to a custom or larger non-standard unit. If you can sacrifice thrust, stepping down to the 100 mm bore drops the 0.5 MPa push force to 3927 N, offering a lighter footprint. Because the stroke is only 25 mm, side-load bending on the Ø32 mm rod and M27x2 thread is minimal, though any high-mass offset load still warrants an external guide. To retrofit an existing machine, match the 125 mm bore, 25 mm stroke, PT1/2 port, and required mounting accessory. Note that this plain SE model will drift if air pressure is lost; it cannot hold a load without live pressure.
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 SE125X25 FAQ
The SE125X25 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, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125X25 is dimensionally interchangeable per ISO 15552 standards. You can drop it into existing mounts designed for other ISO 15552 profile cylinders, matching the 125 mm bore, 25 mm stroke, and PT1/2 porting. Just note this specific SKU lacks a sensor magnet.
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