Airtac SE125 Standard Cylinder SE125X275S
The AirTAC Airtac SE125 Standard Cylinder SE125X275S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 275mm 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
- Stroke275 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X275S
The AirTAC SE125X275S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. Operating at 0.5 MPa, it generates 6136 N of push force and 5734 N of pull force, scaling up to a maximum output of 1252 kgf at 1.0 MPa. Its robust 32 mm piston rod and M27x2 end thread handle high axial and side loads with exceptional rigidity.
This unit features a square extruded aluminum barrel without external tie rods, yielding a compact footprint that mounts flush against machine frames while resisting corrosion. The integrated -S magnet enables direct position sensing with AirTAC CMSE reed or DMSE electronic switches, and the field-adjustable air cushioning at both ends lets technicians fine-tune end-of-stroke deceleration to eliminate hard mechanical impacts.
Airtac SE125 Standard Cylinder SE125X275S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X275S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 275 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 SE125X275S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×275 | 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 SE125X275S Is Used
Heavy Stamp Press Ejection
Provides the high 6136 N push force required to knock thick-gauge metal stampings out of progressive die sets, utilizing the 275 mm stroke to clear the bolster completely.
Injection Mold Platen Separation
Leverages the 125 mm bore and 32 mm rod to break the vacuum seal on large injection molding platens, where the field-adjustable air cushion softens the sudden deceleration of heavy tooling.
Palletizer Push-Off Arm
Drives the sweep arm on automated end-of-line palletizers, moving heavy unit loads onto stretch wrappers with precise position feedback via the integrated -S magnet and DMSE sensors.
Is the Airtac SE125 Standard Cylinder SE125X275S the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when your application demands up to 6136 N of push force at 0.5 MPa. If you need to step down to reduce physical size and air consumption, the neighboring 100 mm bore provides 3927 N of push force. As the largest standard ISO 15552 size, stepping up beyond 125 mm requires moving to a non-standard or custom multi-stage solution. Because this unit carries a 275 mm stroke, the extended 32 mm rod generates leverage that can stress the rod bearing under severe side loading; always utilize an external guide rail to prevent premature seal wear.
This SE125X275S variant includes the -S magnet for CMSE / DMSE sensors, uses a PT1/2 port, and is dimensionally interchangeable with other ISO 15552 cylinders for direct retrofits. Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; if your load must be held mechanically during an exhaust or emergency stop, pair this cylinder with an external rod lock or specify the AirTAC BSE 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 SE125X275S FAQ
At 0.5 MPa, this 125 mm bore cylinder outputs 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125X275S is dimensionally interchangeable with any standard ISO 15552 profile cylinder, matching mounting dimensions and utilizing a PT1/2 port. It is built with an extruded aluminum barrel without external tie rods and includes the -S magnet for CMSE and DMSE position sensors.
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