Airtac SE125 Standard Cylinder SE125X165S
The AirTAC Airtac SE125 Standard Cylinder SE125X165S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 165mm 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
- Stroke165 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X165S
The AirTAC SE125X165S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. With a 125 mm bore, it generates a substantial 6136 N push force at 0.5 MPa and up to 8590 N at 0.7 MPa. The extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while maintaining the standardized ISO 15552 footprint.
This 165 mm stroke variant includes a built-in magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic position sensors. Field-adjustable air cushioning at both ends allows you to tune end-of-stroke deceleration, protecting heavy payloads from impact shocks. The unit operates at speeds of 30-500 mm/s and uses a PT1/2 port paired with a robust Ø32 mm rod and M27x2 thread.
Airtac SE125 Standard Cylinder SE125X165S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X165S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 165 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 SE125X165S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×165 | 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 SE125X165S Is Used
Injection Mold Ejection
Provides the 6136 N push force at 0.5 MPa required to positively eject dense plastic parts from large injection molds, using the 165 mm stroke to clear the mold cavity safely.
Heavy Stamping Press Feed
Actuates the heavy clamp mechanism on a metal stamping press feed line, where the Ø32 mm rod and M27x2 thread withstand high side loads during sheet metal indexing.
Palletizer Stopper Gate
Controls the heavy stopper gate on an automated wooden palletizer conveyor, using the -S magnet and DMSE sensors to confirm gate position before the forklift loads the stack.
Is the Airtac SE125 Standard Cylinder SE125X165S the Right Cylinder?
Selecting the SE125X165S is appropriate when your mechanism requires up to 6136 N of push force at 0.5 MPa. If you need less force, stepping down to the 100 mm bore yields 3927 N push, whereas this 125 mm bore is the largest standard option available, delivering a maximum push of 1252 kgf at 1.0 MPa. Because the 165 mm stroke is below the 300 mm side-load threshold, standard mounting is generally sufficient, though heavy radial loads still warrant an external guide.
As a true ISO 15552 profile cylinder, this model serves as a drop-in dimensional replacement for other ISO 15552 cylinders. To retrofit, match the 125 mm bore, 165 mm stroke, PT1/2 port, and your preferred mounting accessory, and utilize the integrated -S magnet for CMSE or DMSE sensor feedback. Remember that the adjustable air cushion only decelerates the piston near the stroke ends; it does not lock the rod. If your application must hold a load vertically without continuous air pressure, consider the AirTAC BSE rod-lock variant instead.
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 SE125X165S FAQ
The SE125X165S 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. The maximum push force is 1252 kgf at 1.0 MPa. It operates at a speed range of 30-500 mm/s.
Yes, it is dimensionally interchangeable with other ISO 15552 profile cylinders, sharing the exact same mounting interface and PT1/2 port size. However, the adjustable air cushion only decelerates the piston near stroke end; it does not hold a load. For dead-air load holding, use the AirTAC BSE rod-lock cylinder or an external brake.
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