Airtac SE125 Standard Cylinder SE125X175
The AirTAC Airtac SE125 Standard Cylinder SE125X175 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 175mm 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
- Stroke175 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X175
The AirTAC SE125X175 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. Operating at 0.5 MPa, it generates 6136 N of push force and 5734 N of pull force, scaling up to 8590 N push at 0.7 MPa. The extruded aluminum barrel design omits external tie rods entirely, yielding a flush, corrosion-resistant exterior that simplifies mounting and machine integration.
This specific SKU lacks the internal position-sensing magnet, relying instead on mechanical travel for straightforward end-to-end actuation. To absorb the kinetic energy of moving large masses, the cylinder incorporates a field-adjustable air cushion at both ends with a 40 mm stroke length. Technicians can tune these cushion needles to precisely decelerate the 32 mm rod at stroke endpoints, eliminating hard mechanical impacts without restricting mid-stroke velocity.
Airtac SE125 Standard Cylinder SE125X175 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X175 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 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 SE125X175
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 SE125X175 Is Used
Injection Mold Platen Shifting
Provides the heavy 6136 N push force required to shift large injection molding platens into locking position, utilizing the 175 mm stroke to clear the mold area safely.
Hydraulic Press Tonnage Assist
Acts as a high-force pneumatic booster in light hydraulic press assemblies, where the 125 mm bore and adjustable 40 mm cushion absorb the shock of rapid approach strokes.
Structural Beam Straightening
Delivers up to 1252 kgf at 1.0 MPa to deform and align heavy structural steel beams in fabrication jigs, taking advantage of the rigid tie-rod-free extruded profile.
Is the Airtac SE125 Standard Cylinder SE125X175 the Right Cylinder?
Selecting the SE125X175 is appropriate when your application demands up to 1252 kgf of maximum thrust at 1.0 MPa. If you need to step down to save air consumption and cycle time, the adjacent 100 mm bore yields 3927 N of push at 0.5 MPa. As the largest standard bore in the SE lineup, there is no larger up-size option within this series, so any requirement beyond 6136 N at 0.5 MPa will require a tandem setup or a different actuator family. Because this SKU omits the -S magnet, you cannot mount CMSE or DMSE position sensors; if mid-stroke positioning is required, specify an SE125X175S variant instead.
When replacing existing hardware, this model is dimensionally interchangeable per ISO 15552, matching the standardized mounting footprint and PT1/2 port size of other profile cylinders. Remember that the integrated air cushion only decelerates the piston near the end of travel; it does not hold the load if air pressure drops. If your machinery requires fail-safe positioning, you must pair this cylinder with an external pilot-operated check valve or transition to the BSE rod-lock variant.
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 SE125X175 FAQ
At 0.5 MPa, the SE125X175 delivers 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N. The maximum push force is 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, matching standard mounting interfaces and PT1/2 ports. However, the adjustable air cushion only decelerates the piston near stroke end; it does not function as a brake. The cylinder will drift if air pressure is lost, so a rod lock (BSE series) is required for fail-safe load holding.
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