Airtac SE125 Standard Cylinder SE125X750
The AirTAC Airtac SE125 Standard Cylinder SE125X750 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 750mm 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
- Stroke750 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X750
The AirTAC SE125X750 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a substantial 6136 N 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 machine frames while exposing standardized ISO 15552 interface dimensions for seamless retrofitting. This unit features a PT1/2 port, a robust Ø32 mm rod with an M27x2 thread, and a 40 mm cushion length to manage high kinetic energy.
Because this specific SKU lacks the built-in -S magnet, it does not directly support AirTAC CMSE or DMSE position sensors without modification. The field-adjustable pneumatic cushioning at both ends allows technicians to dial in end-of-stroke deceleration via a set screw, softening hard impacts when moving heavy loads at speeds up to 30-500 mm/s. This is a true deceleration cushion, not a locking mechanism, meaning the piston will drift if air pressure is lost.
Airtac SE125 Standard Cylinder SE125X750 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X750 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 750 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 SE125X750
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×750 | 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 SE125X750 Is Used
Automotive Press Transfer
Moves heavy stamping dies or chassis panels between press stations, utilizing the 6136 N push force to shift substantial mass over the 750 mm travel.
Injection Mold Ejection
Provides high-force ejection of molded plastic components from heavy tooling, where the 125 mm bore and adjustable cushioning absorb the substantial kinetic energy at stroke end.
Palletizer Lift Station
Actuates the main lift platform for heavy unit loads in end-of-line packaging, relying on the robust Ø32 mm rod to handle high downward thrust without buckling.
Is the Airtac SE125 Standard Cylinder SE125X750 the Right Cylinder?
Selecting this 125 mm bore provides a maximum push of 1252 kgf at 1.0 MPa, making it the largest standard SE size. If your application requires less force, stepping down to the 100 mm bore yields a 3927 N push at 0.5 MPa, which may suffice for lighter loads. Since this is the upper boundary of the SE range, there is no larger standard bore available. For this 750 mm stroke, the extended length increases the risk of rod-bearing bending under side loads; utilizing an external guide rail is strongly recommended to prevent premature seal wear. As a standard ISO 15552 cylinder, it serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 profile cylinders, utilizing the same mounting accessories. Remember that a plain SE cylinder does not hold its load when air is exhausted—if your machine requires position holding without live pressure, 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 SE125X750 FAQ
The SE125X750 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 is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range for this 125 mm bore cylinder is 30-500 mm/s.
This specific SKU does not include the -S magnet, so it cannot directly host AirTAC CMSE or DMSE sensors without modification. Additionally, the adjustable air cushion only decelerates the piston near the stroke end; it does not lock the rod. If your application requires position holding without live air pressure, you should look at the BSE rod lock variant.
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