Airtac SE125 Standard Cylinder SE125X150S
The AirTAC Airtac SE125 Standard Cylinder SE125X150S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 150mm 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
- Stroke150 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X150S
The AirTAC SE125X150S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. Operating at 0.5 MPa, it delivers a substantial 6136 N push force and 5734 N retract force, scaling up to 8590 N extend thrust at 0.7 MPa. The extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while exposing sensor grooves on three sides for flexible positioning.
Equipped with a built-in magnet (S option), this unit directly supports AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. The field-adjustable pneumatic cushioning at both ends utilizes a 40 mm stroke length to decelerate the 32 mm hard-chrome rod smoothly, allowing technicians to tune end-stop softening for fast-cycling 125 mm bore actuators without relying on fixed rubber bumpers.
Airtac SE125 Standard Cylinder SE125X150S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X150S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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 SE125X150S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 SE125X150S Is Used
Press Brake Tooling
Provides the 6136 N push force at 0.5 MPa required to actuate heavy lower dies and hold sheet metal securely during 150 mm clamping strokes.
Injection Mold Ejection
Drives substantial 125 mm bore knockout plates to clear large molded parts, utilizing the 40 mm adjustable cushion to soften rapid retraction impacts.
Pallet Dispenser Mechanism
Handles the heavy inertia of empty pallet magazines, using the built-in magnet for DMSE sensor feedback to sequence the 150 mm transfer stroke reliably.
Is the Airtac SE125 Standard Cylinder SE125X150S the Right Cylinder?
Generating a maximum of 1252 kgf at 1.0 MPa, this 125 mm bore cylinder is the largest standard size in the SE range. If your application requires less force, stepping down to the 100 mm bore provides 3927 N of push at 0.5 MPa, which may suit lighter loads and save space. Because this is the upper edge of the series, there is no larger standard bore available. As a dimensionally interchangeable ISO 15552 component, it serves as a direct drop-in replacement for other ISO 15552 cylinders, utilizing a PT1/2 port and matching standardized mounting hardware like TC center trunnions.
Keep in mind that the adjustable air cushion only decelerates the piston near the stroke end and does not lock or hold the load. If unpowered drift is unacceptable, a BSE rod lock variant or external pilot-operated check valve is required. At 150 mm stroke, side-load stress on the rod bearing is minimal, but any heavy offset load should still use an external guide to prevent premature wear.
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 SE125X150S FAQ
This 125 mm bore 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. Its operational speed range is 30-500 mm/s.
No. The field-adjustable air cushion only decelerates the piston near the end of its stroke; it is not a mechanical lock. If you need to hold a vertical load without live air pressure, you must use an AirTAC BSE rod lock cylinder or an external pilot-operated check valve.
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