Airtac SE125 Standard Cylinder SE125X750S
The AirTAC Airtac SE125 Standard Cylinder SE125X750S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 750mm 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
- Stroke750 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X750S
The AirTAC SE125X750S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. Utilizing a square extruded aluminum barrel without external tie rods, it provides a flush, corrosion-resistant mounting surface that simplifies bracket alignment. At 0.5 MPa, this 125 mm bore generates 6136 N of push force and 5734 N of pull force, scaling to a maximum push of 1252 kgf at 1.0 MPa.
Equipped with a built-in position magnet (-S), the unit seamlessly integrates with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. The field-adjustable pneumatic cushioning at both ends allows technicians to tune the 40 mm cushion length via a set screw, softening the deceleration of the 750 mm stroke to protect tooling and reduce mechanical shock.
Airtac SE125 Standard Cylinder SE125X750S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X750S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 750 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 SE125X750S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×750 | 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 SE125X750S Is Used
Automotive Stamping Press
Drives heavy lower dies into the press bed, utilizing the 6136 N push force at 0.5 MPa to secure the tooling over the extended 750 mm stroke.
Pallet Transfer Indexer
Pushes fully loaded 1000 kg assembly pallets onto perpendicular conveyor lines, relying on the 32 mm rod to handle the shifting mass during the 750 mm traverse.
Thermoforming Mold Handler
Actuates large heated platens into the forming station, where the built-in -S magnet triggers DMSE electronic sensors to confirm mold closure.
Is the Airtac SE125 Standard Cylinder SE125X750S the Right Cylinder?
Selecting the SE125X750S is optimal when your application requires moving substantial loads over a long distance, as stepping down to the 100 mm bore drops the 0.5 MPa push force to 3927 N, while the 125 mm bore is the largest standard option available. Because this model features a 750 mm stroke, the 32 mm piston rod and rod bearing face significant bending moments under side loads; an external guide rail should be installed to prevent premature seal wear. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct drop-in replacement for other ISO 15552 profile cylinders, utilizing the PT1/2 port and standard mounting accessories. Note that the air cushion decelerates the piston near stroke end but does not lock or hold the load if air pressure is lost.
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 SE125X750S FAQ
The SE125X750S provides a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore cylinder is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552 and can serve as a drop-in replacement for other ISO 15552 profile cylinders using standard mounting hardware. However, it is a double-acting cylinder and does not hold its load if air is lost; the adjustable air cushion only decelerates the piston near stroke end.
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