Airtac SE125 Standard Cylinder SE125X380S
The AirTAC Airtac SE125 Standard Cylinder SE125X380S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 380mm 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
- Stroke380 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X380S
The AirTAC SE125X380S 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 to a maximum output of 1252 kgf at 1.0 MPa. The extruded aluminum barrel omits external tie rods, yielding a compact, flush-mounting body that naturally resists corrosion and simplifies fixture machining.
This specific configuration includes a built-in position-sensing magnet (the S option) designed to interface directly with AirTAC CMSE reed and DMSE electronic switches along the three integrated sensor grooves. Because the 380 mm stroke operates at high thrust, the field-adjustable pneumatic cushioning at both end caps becomes critical—technicians can tune the needle valves to smoothly decelerate the 32 mm rod and prevent damaging mechanical end-stop shocks.
Airtac SE125 Standard Cylinder SE125X380S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X380S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 380 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 SE125X380S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×380 | 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 SE125X380S Is Used
Injection Mold Platen Ejection
Drives heavy mold ejection plates in plastic injection machinery, utilizing the 6136 N push force at 0.5 MPa to reliably strip dense parts from deep cavity tooling.
Hydraulic Press Stubbing
Acts as a pneumatic pre-load actuator in heavy stamping presses, moving large 380 mm strokes to position metal blanks before the main hydraulic cycle begins.
Palletizer Lift Carriage
Lifts lowerator carriages in automated end-of-line palletizers, where the 32 mm rod and 1252 kgf max thrust capacity handle substantial mechanical gripper payloads.
Is the Airtac SE125 Standard Cylinder SE125X380S the Right Cylinder?
Selecting the SE125X380S is appropriate when your application demands extreme thrust within a standardized footprint. If you need to step the force down, the neighboring 100 mm bore provides 3927 N of push at 0.5 MPa; stepping up is not an option as 125 mm is the largest bore in the SE series. At 1.0 MPa, this 125 mm bore achieves a maximum push of 1252 kgf. The PT1/2 port and M27x2 rod thread accommodate high airflow and heavy structural loads. As a dimensionally interchangeable ISO 15552 component, it serves as a direct drop-in replacement for other ISO 15552 cylinders, sharing identical mounting interface dimensions for LB, FA, or TC accessories. Because the stroke is 380 mm, the extended 32 mm rod is subject to bending moments under side loads—an external guide rail is strongly recommended to prevent premature rod-bearing 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 SE125X380S FAQ
At 0.5 MPa, the SE125X380S 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 capacity is 1252 kgf at 1.0 MPa. The operational speed range for this 125 mm bore is 30-500 mm/s.
No, a standard double-acting SE cylinder cannot hold a load when air is exhausted or a valve is centered; the piston will drift. The adjustable air cushion at both ends only decelerates the piston near the stroke end and does not function as a brake. For positive load holding, an external rod lock like the BSE series or a pilot-operated check valve is required.
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