Airtac SE125 Standard Cylinder SE125X75
The AirTAC Airtac SE125 Standard Cylinder SE125X75 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 75mm 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
- Stroke75 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X75
The AirTAC SE125X75 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty pneumatic motion, delivering a substantial 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while surviving harsh washdown environments.
This 125 mm bore unit features a robust 32 mm piston rod and PT1/2 ports. Because this specific SKU lacks the -S magnet code, it operates without position sensing; if your application requires electronic or reed switch feedback, you would need the CMSE or DMSE sensors paired with a magnet-equipped variant.
Airtac SE125 Standard Cylinder SE125X75 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X75 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 75 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 SE125X75
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 SE125X75 Is Used
Stamping Press Ejection
Provides the heavy 6136 N push force required to knock thick steel blanks out of stamping dies, utilizing the 75 mm stroke for rapid, high-impact ejection cycles.
Injection Mold Clamping
Secures heavy injection molding halts using the 125 mm bore's massive 1252 kgf maximum thrust, holding molds firmly shut under high-pressure injection cycles.
Hydraulic Press Braking
Acts as a pneumatic hold-down on a heavy-duty press brake, using the 32 mm rod and 5734 N pull force to position thick sheet metal blanks accurately before bending.
Is the Airtac SE125 Standard Cylinder SE125X75 the Right Cylinder?
Selecting the SE125X75 makes sense when you need maximum thrust in the ISO 15552 range, as it delivers 6136 N push at 0.5 MPa. If you want to step down to a smaller bore to save air volume, the neighboring 100 mm bore provides 3927 N push at 0.5 MPa. As the largest standard bore, there is no larger neighbor in this series. The 75 mm stroke is well below the 1500 mm maximum, keeping the 32 mm rod highly rigid without requiring external guide rails to counter side-load bending.
For retrofits, this cylinder is dimensionally interchangeable with other ISO 15552 profile cylinders, matching standard mounting accessories like the TC centre trunnion or LB foot brackets. Remember that the field-adjustable air cushion at both ends only decelerates the piston near the stroke limits; it does not lock the rod, so you must maintain live air pressure to hold a load vertically.
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 SE125X75 FAQ
The SE125X75 generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a 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 SE125X75 is dimensionally interchangeable per ISO 15552 standards. You can swap it directly with other ISO 15552 profile cylinders using existing mounting hardware and PT1/2 port connections, though you must confirm overall envelope dimensions.
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