Airtac SE125 Standard Cylinder SE125X800
The AirTAC Airtac SE125 Standard Cylinder SE125X800 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 800mm 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
- Stroke800 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X800
The AirTAC SE125X800 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It generates a substantial 6136 N of push force at 0.5 MPa, utilizing a 125 mm bore and an 800 mm stroke. The robust square extruded aluminum barrel entirely eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while maintaining the standardized ISO 15552 interface.
Because this specific SKU lacks the built-in magnet suffix (-S), it is not equipped out-of-the-box for CMSE or DMSE position sensing. Field-adjustable pneumatic cushioning at both ends allows technicians to dial in the 40 mm cushion length via a screw, softening the deceleration of heavy 1252 kgf peak loads as they approach the stroke ends.
Airtac SE125 Standard Cylinder SE125X800 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X800 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 800 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 SE125X800
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×800 | 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 SE125X800 Is Used
Automotive Stamping Press Ejection
Ejecting heavy stamped metal body panels from a 1000-ton press, utilizing the 6136 N push force to overcome die friction and part adhesion across the 800 mm stroke.
Palletizer Clamp Arm Actuation
Driving the main clamp arm on a robotic palletizer, where the 125 mm bore's high force secures heavy cement bags and the extruded profile body resists dusty industrial environments.
Heavy-duty Lift Gate Positioning
Positioning a 800 mm lift gate on heavy machinery loaders, relying on the adjustable pneumatic cushioning to smoothly decelerate massive inertial loads at the stroke ends.
Is the Airtac SE125 Standard Cylinder SE125X800 the Right Cylinder?
Selecting this 125 mm bore provides maximum standard thrust, pushing 6136 N at 0.5 MPa. If your application requires less force, stepping down to the 100 mm bore yields 3927 N of push, which may offer a lighter, more compact footprint. Conversely, this 125 mm bore is the largest standard size available in the SE series, making it the definitive choice when 8590 N of push at 0.7 MPa is required for high-inertia loads.
With an 800 mm stroke, the 32 mm rod and M27x2 thread must be carefully evaluated for side-load bending; an external guide bearing is strongly recommended to prevent rod deflection over this long unsupported distance. Remember that the adjustable air cushion only decelerates the piston near the end of travel—it does not hold the load. If air pressure is lost or the directional valve is centered, the cylinder will drift, requiring an external rod lock or pilot-operated check valve for true position holding.
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 SE125X800 FAQ
The SE125X800 generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force reaches 8590 N, with an absolute maximum push of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore is 30-500 mm/s.
Yes, the SE125X800 is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact same mounting footprint and can serve as a drop-in replacement for other ISO 15552 profile cylinders. It uses a PT1/2 port and features an extruded aluminum barrel without external tie rods for clean, flush mounting.
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