Airtac SE125 Standard Cylinder SE125X80
The AirTAC Airtac SE125 Standard Cylinder SE125X80 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 80mm 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
- Stroke80 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X80
The AirTAC SE125X80 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic drive force. Operating at 0.5 MPa, it delivers 6136 N of push force and 5734 N of pull force, scaling up to a maximum of 1252 kgf at 1.0 MPa. The extruded aluminum barrel features a square profile without external tie rods, making the body highly corrosion-resistant and easy to mount flush against machine frames.
This 125 mm bore unit utilizes a PT1/2 port and a robust Ø32 mm rod with an M27x2 thread. Field-adjustable pneumatic cushioning at both ends allows technicians to dial in end-of-stroke deceleration for heavy 80 mm strokes, preventing hard impact damage. Note that this specific SKU lacks a built-in magnet, meaning it is not wired for AirTAC CMSE or DMSE position sensors without modification.
Airtac SE125 Standard Cylinder SE125X80 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X80 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 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 SE125X80
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SE125X80 Is Used
Injection Molding Press
Provides 6136 N of push at 0.5 MPa to operate heavy mold separation arms and eject heavy automotive plastic parts from the tool cavity.
Stamping Press Feeder
Utilizes its robust Ø32 mm rod and M27x2 thread to push thick steel coil strips into a mechanical stamping press at speeds up to 500 mm/s.
CNC Lathe Bar Feeder
Drives heavy steel bars into the spindle chuck, relying on the field-adjustable cushioning to soften the 80 mm stroke end-stops under high inertia.
Is the Airtac SE125 Standard Cylinder SE125X80 the Right Cylinder?
If your application requires less force, stepping down to the 100 mm bore yields 3927 N of push at 0.5 MPa, while stepping up is not an option as 125 mm is the largest standard SE size. Because this is a plain double-acting cylinder, it will drift if air pressure is lost or the valve is centered; applications requiring absolute load holding without live pressure need a BSE rod lock or an external pilot-operated check valve. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct drop-in replacement sharing standard mounting hardware, a PT1/2 port, and an 80 mm stroke.
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 SE125X80 FAQ
The SE125X80 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.
No, the adjustable air cushion only decelerates the piston near the 80 mm stroke ends and is not a locking mechanism. If the air supply is lost or exhausted, the piston will drift; use an AirTAC BSE rod lock variant for fail-safe position holding.
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