Airtac SE125 Standard Cylinder SE125X30S
The AirTAC Airtac SE125 Standard Cylinder SE125X30S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 30mm 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
- Stroke30 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X30S
The AirTAC SE125X30S is a double-acting single-rod profile cylinder built to the ISO 15552 / VDMA 24562 standard. In the 125 mm bore class, it delivers a substantial 6136 N push force at 0.5 MPa and 8590 N at 0.7 MPa, making it suited for heavy-duty positioning tasks. The extruded aluminum barrel design omits external tie rods entirely, yielding a compact, corrosion-resistant body that mounts flush against machine frames while exposing no vulnerable hardware to the working environment.
This specific configuration includes a 30 mm stroke and a built-in magnet (-S) for non-contact position detection using AirTAC CMSE reed or DMSE electronic sensors. The field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration via a set screw, softening hard impacts when moving heavy payloads at speeds up to 30-500 mm/s.
Airtac SE125 Standard Cylinder SE125X30S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X30S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 30 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 SE125X30S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×30 | 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 SE125X30S Is Used
Injection Mold Clamping
Provides 6136 N of extend force at 0.5 MPa to hold large injection mold halves or heavy tooling securely in place during secondary machining operations.
Press-Fit Bushings
Drives large-diameter bearings or bushings into automotive gearbox housings, utilizing the 125 mm bore's 8590 N push at 0.7 MPa for reliable insertion.
Pallet Squaring Stops
Acts as a heavy-duty end-stop on heavy-duty palletizing conveyors, using the 30 mm short stroke to square heavy pallet loads before stretch wrapping.
Is the Airtac SE125 Standard Cylinder SE125X30S the Right Cylinder?
Stepping down from this 125 mm bore (6136 N push at 0.5 MPa), the 100 mm neighbor provides 3927 N, which is often sufficient for lighter loads and saves footprint. If maximum thrust is required, 125 mm is the largest standard SE bore, offering a maximum push of 1252 kgf at 1.0 MPa. Because this is a plain double-acting cylinder, it will drift if air supply is lost or a valve centers; for fail-safe load holding, integrate an external pilot-operated check valve or specify a BSE series rod lock. Dimensionally interchangeable with all ISO 15552 cylinders, it serves as a direct drop-in retrofit sharing standardized mounting interfaces and accessory 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 SE125X30S FAQ
The SE125X30S generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum push of 1252 kgf at its 1.0 MPa operating limit.
Yes, the SE125X30S is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact mounting footprint, PT1/2 port size, and M27x2 rod thread of compliant cylinders from other manufacturers.
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