Airtac SE125 Standard Cylinder SE125X165
The AirTAC Airtac SE125 Standard Cylinder SE125X165 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 SE125X165
The AirTAC SE125X165 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 completely eliminates external tie rods, yielding a flush, corrosion-resistant exterior that simplifies flush mounting and sensor placement along the body.
This 125 mm bore unit features a PT1/2 port, a robust Ø32 mm piston rod with an M27x2 thread, and field-adjustable air cushioning at both ends to precisely tune end-of-stroke deceleration. Note that this specific SKU is configured without a magnet, meaning it cannot host CMSE or DMSE position sensors without modification.
Airtac SE125 Standard Cylinder SE125X165 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X165 |
|---|---|
| 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 SE125X165
| 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 SE125X165 Is Used
Hydraulic Press Die Separation
Supplies the intense 6136 N push force at 0.5 MPa required to break vacuum seals and separate heavy stamping dies in automated hydraulic press setups.
Structural Beam Straightener
Utilizes the 125 mm bore and M27x2 rod thread to apply opposing pressure for truing and straightening thick-walled structural steel beams during fabrication.
Heavy Pallet Forming Press
Leverages the adjustable 40 mm cushion stroke to gently decelerate the massive 1252 kgf maximum load when compacting industrial corrugated pallets.
Is the Airtac SE125 Standard Cylinder SE125X165 the Right Cylinder?
Select this 125 mm bore actuator when your application strictly demands the highest standard thrust tier in the SE range, pushing 6136 N at 0.5 MPa. If you need to step down to save space and air consumption, the adjacent 100 mm bore provides 3927 N of push force at 0.5 MPa; conversely, as the largest standard SE bore, stepping up beyond 125 mm requires moving to a non-standard or larger custom series. Because this is a plain double-acting cylinder, it will drift and cannot hold a load if air pressure is lost or the valve is centered—integrate a BSE rod lock or external pilot-operated check valve if static holding is mandatory. The 165 mm stroke falls below the 300 mm threshold where external side-load guides become strictly critical, though the massive Ø32 mm rod naturally handles high bending moments well.
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 SE125X165 FAQ
This 125 mm bore cylinder provides 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum thrust of 1252 kgf at 1.0 MPa. Its operational speed range is 30-500 mm/s.
Yes, the SE125X165 is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact mounting footprint and can serve as a drop-in replacement for other ISO 15552 profile cylinders. It features a PT1/2 port and adjustable air cushions at both ends, though this specific SKU lacks the internal magnet needed for CMSE or DMSE electronic position sensors.
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