Airtac SE125 Standard Cylinder SE125X450S
The AirTAC Airtac SE125 Standard Cylinder SE125X450S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 450mm 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
- Stroke450 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X450S
The AirTAC SE125X450S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a substantial 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while leaving the three integrated sensor grooves fully accessible for position detection.
Equipped with a built-in magnet (-S), this unit interfaces directly with AirTAC CMSE reed and DMSE electronic sensors to confirm end-of-stroke positioning. The field-adjustable pneumatic cushioning at both ends features a 40 mm travel length, allowing technicians to fine-tune end-of-stroke deceleration and effectively dampen the massive 1252 kgf kinetic energy generated at maximum pressure.
Airtac SE125 Standard Cylinder SE125X450S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X450S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 450 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 SE125X450S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×450 | 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 SE125X450S Is Used
Heavy Press Ejection
Ejecting heavy stamped metal parts from a hydraulic press bed requires high push force over a long reach; the 6136 N extend force at 0.5 MPa easily clears stuck components across the 450 mm stroke.
Palletizer Diverter
Diverting full pallets onto a secondary roller conveyor line demands robust thrust; the 125 mm bore handles the mass, while the adjustable 40 mm cushion absorbs the impact of the 450 mm traverse.
Automated Die Transfer
Shifting large stamping dies between press stations benefits from the 32 mm rod diameter for side-load resistance and the -S magnet for confirming transfer arm position via DMSE sensors.
Is the Airtac SE125 Standard Cylinder SE125X450S the Right Cylinder?
Selecting the SE125X450S is appropriate when your mechanism requires moving heavy loads over a 450 mm distance, as it provides 6136 N of push force at 0.5 MPa. If your load demands less force, stepping down to the 100 mm bore yields 3927 N of push, whereas this 125 mm bore is the largest available in the SE series. Because the 450 mm stroke creates a long lever arm on the 32 mm rod, side-load bending moments are a significant risk; an external guide rail is strongly recommended to prevent premature rod-bearing wear.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other ISO 15552 profile cylinders, utilizing the same mounting hardware and PT1/2 porting. Note that this cylinder relies on live air pressure to move; it cannot hold a load if air is exhausted or a valve is centered. If static holding is required, integrate a BSE rod lock or an external pilot-operated check valve.
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 SE125X450S FAQ
At 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At 0.7 MPa, the push force reaches 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range for this 125 mm bore cylinder is 30-500 mm/s.
The -S code indicates a built-in magnet designed specifically for AirTAC CMSE reed and DMSE electronic sensors. Additionally, the cylinder features field-adjustable air cushions at both ends with a 40 mm cushion length, allowing technicians to tune the end-of-stroke deceleration to match the load without replacing the cylinder.
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