Airtac SE125 Standard Cylinder SE125X50S
The AirTAC Airtac SE125 Standard Cylinder SE125X50S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 50mm 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
- Stroke50 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X50S
The AirTAC SE125X50S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics, delivering a robust 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush into tight machinery spaces while resisting mechanical snagging.
This specific unit includes the S magnet code for seamless integration with AirTAC CMSE reed and DMSE electronic position sensors across its 50 mm stroke. Field-adjustable pneumatic cushioning at both ends allows you to tune end-stop deceleration precisely, protecting the 32 mm rod and M27x2 thread from heavy impact loads.
Airtac SE125 Standard Cylinder SE125X50S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X50S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 50 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 SE125X50S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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 SE125X50S Is Used
Injection Mold Clamping
Provides the massive 6136 N push force at 0.5 MPa required to hold heavy injection mold halves shut during low-pressure plastic injection cycles.
Hydraulic Press Ejection
Uses the 1252 kgf maximum thrust to eject dense automotive cast parts from hydraulic press beds, relying on the 40 mm cushion to absorb heavy end-stops.
Heavy Stamping Press
Drives the blanking slide in a thick-gauge metal stamping line, where the 32 mm hard-chrome rod resists deflection under high off-center loads.
Is the Airtac SE125 Standard Cylinder SE125X50S the Right Cylinder?
Selecting this 125 mm bore provides maximum standard thrust, but if you need to step down, the 100 mm bore yields 3927 N push at 0.5 MPa. Because this is a plain double-acting cylinder, it cannot hold a load if air pressure drops or the valve centers; for position holding, consider the BSE rod lock variant. As a dimensionally interchangeable ISO 15552 cylinder, it drops in to replace other 125 mm profile cylinders using the same PT1/2 ports and 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 SE125X50S FAQ
At 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At 0.7 MPa, the push force is 8590 N. The maximum push force is 1252 kgf at 1.0 MPa.
Yes, the SE125X50S is dimensionally interchangeable per ISO 15552 standards. It shares the standardized mounting interface and PT1/2 port locations, allowing a direct drop-in replacement for other 125mm profile cylinders.
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