Airtac SE125 Standard Cylinder SE125X45S
The AirTAC Airtac SE125 Standard Cylinder SE125X45S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 45mm 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
- Stroke45 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X45S
The AirTAC SE125X45S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. Operating at 0.5 MPa, it generates a substantial 6136 N of push force and 5734 N of pull force, peaking at 8590 N push when supplied with 0.7 MPa. The 125 mm bore utilizes a PT1/2 port and a robust Ø32 mm piston rod with an M27x2 thread to handle high structural loads.
Unlike traditional tie-rod designs, this unit features an extruded aluminum barrel with sensor grooves on three sides, allowing for flush mounting and easy integration of CMSE reed or DMSE electronic sensors via the built-in -S magnet. The field-adjustable air cushioning at both ends can be precisely tuned with a screw to decelerate heavy 1252 kgf payloads smoothly, preventing damaging end-of-stroke impacts.
Airtac SE125 Standard Cylinder SE125X45S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X45S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 45 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 SE125X45S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×45 | 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 SE125X45S Is Used
Metal Stamping Press Ejection
Provides the intense 6136 N push force required to eject thick steel blanks from a stamping die within a short 45 mm travel distance.
Injection Mold Platen Clamping
Delivers rapid, high-impact clamping of heavy injection molding platens, utilizing the 125 mm bore's 1252 kgf maximum output.
Industrial Hydraulic Press Brake
Applies massive holding power to secure heavy steel plates during an industrial press brake bending operation.
Is the Airtac SE125 Standard Cylinder SE125X45S the Right Cylinder?
Choosing the SE125X45S is optimal when your application requires maximum thrust within the standard ISO 15552 range. If 6136 N at 0.5 MPa is excessive, stepping down to the 100 mm bore yields 3927 N of push force. Conversely, if your layout demands even more power, this 125 mm bore provides the maximum standard thrust available in the SE line. Because this is a double-acting cylinder, it cannot hold a load unpowered—air loss causes drift, so a BSE rod lock is required for secure positioning.
The 45 mm stroke is ideal for short, high-force movements. For retrofitting, this cylinder is dimensionally interchangeable per ISO 15552, matching standard mounting accessories like TC or FA brackets. The PT1/2 port and M27x2 rod thread ensure high flow and rigidity. Although the 45 mm stroke is short and minimizes rod-bearing bending, always verify side-load limits when pushing heavy assemblies.
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 SE125X45S FAQ
This cylinder delivers 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum of 1252 kgf at 1.0 MPa. The included -S magnet supports AirTAC CMSE reed and DMSE electronic position sensors.
Yes, its ISO 15552 profile makes it dimensionally interchangeable with other standard ISO 15552 cylinders. However, it is double-acting and cannot hold loads without air pressure; for position holding, use a BSE rod lock variant.
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