Airtac SE125 Standard Cylinder SE125X800S
The AirTAC Airtac SE125 Standard Cylinder SE125X800S 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 SE125X800S
The AirTAC SE125X800S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It generates 6136 N of push force at 0.5 MPa and features a robust Ø32 mm piston rod with an M27x2 thread. Because the extruded aluminum barrel lacks external tie rods, the body resists corrosion and mounts flush against machine frames, saving valuable space in tight equipment layouts.
Equipped with a built-in magnet (-S), this unit seamlessly interfaces with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. The field-adjustable air cushioning at both ends allows technicians to tune deceleration via a setscrew, softening hard end stops when moving massive loads at speeds up to 500 mm/s.
Airtac SE125 Standard Cylinder SE125X800S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X800S |
|---|---|
| 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 SE125X800S
| 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 SE125X800S Is Used
Metal Stamping Press
Provides the 6136 N push force required to actuate heavy mechanical stamping presses and form sheet metal components over the long 800 mm travel.
Injection Molding Extraction
Handles the rugged duty of pulling heavy molded plastic parts from injection molds, using the integrated magnet to trigger DMSE electronic sensors for precise extraction timing.
Automotive Body Welding
Shifts heavy welding fixtures along the 800 mm stroke, relying on the field-adjustable cushions to safely decelerate the substantial payload mass at cycle end.
Is the Airtac SE125 Standard Cylinder SE125X800S the Right Cylinder?
At 125 mm bore, this cylinder provides immense thrust, but if you need to step down for efficiency, the 100 mm bore offers 3927 N of push at 0.5 MPa. Stepping up is not an option as this is the largest standard SE size. For an 800 mm stroke, the long unsupported piston rod is highly susceptible to bending under side loads; utilizing an external guide rail is strongly recommended to prevent premature rod-bearing wear.
As a true ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders. Remember that the adjustable air cushion only decelerates the piston near stroke end—it does not hold the load. If your application loses air pressure, the rod will drift; for static holding, pair this with a BSE rod lock or an external pilot-operated check valve.
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 SE125X800S FAQ
The SE125X800S generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125X800S is dimensionally interchangeable per ISO 15552 standards. You can use your existing mounting hardware and PT1/2 port connections, and the built-in magnet works directly with AirTAC CMSE and DMSE sensors.
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