Airtac SE125 Standard Cylinder SE125X350
The AirTAC Airtac SE125 Standard Cylinder SE125X350 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 350mm 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
- Stroke350 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X350
The AirTAC SE125X350 is a double-acting single-rod ISO 15552 profile cylinder built for heavy-duty automation. It delivers a substantial 6136 N push force at 0.5 MPa and features a robust Ø32 mm rod with an M27x2 thread. The extruded aluminum barrel lacks external tie rods, yielding a compact, corrosion-resistant body that mounts flush in tight heavy-machinery spaces.
This 125 mm bore model uses a PT1/2 port and operates at 30-500 mm/s. Field-adjustable air cushions at both ends allow you to tune end-of-stroke deceleration, softening hard impacts for massive moving loads. Note that this SKU lacks a built-in magnet, so it does not support CMSE or DMSE position sensing without modification.
Airtac SE125 Standard Cylinder SE125X350 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X350 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 350 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 SE125X350
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×350 | 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 SE125X350 Is Used
Injection Mold Pressing
Supplies the 6136 N push force needed to secure heavy injection mold halves during high-pressure resin injection cycles.
Automotive Stamping
Drives large panel-forming blanks with a 350 mm stroke, using adjustable cushions to absorb the massive kinetic energy at end-of-stroke.
Heavy Press Brake Actuation
Actuates thick-plate bending mechanisms where the M27x2 rod thread and 125 mm bore handle extreme bending loads without buckling.
Is the Airtac SE125 Standard Cylinder SE125X350 the Right Cylinder?
At 0.5 MPa, this 125 mm bore generates 6136 N of push force. If your system requires less force, stepping down to the 100 mm bore yields 3927 N of push. As the largest standard SE bore, there is no larger step-up within this series, so for loads exceeding 1252 kgf at 1.0 MPa, you would need to explore twin-cylinder arrangements. Because this is a standard 350 mm stroke, it falls within the standard range but still requires careful mounting. The 350 mm stroke and heavy rod mass can induce side-load bending on the rod bearing if the load is unsupported, so an external guide is strongly recommended. Remember that a plain SE cylinder drifts when air is lost; for position holding, use a BSE rod lock. It is dimensionally interchangeable with any ISO 15552 cylinder for seamless retrofits.
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 SE125X350 FAQ
The SE125X350 generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum push of 1252 kgf at 1.0 MPa. It operates at a speed range of 30-500 mm/s.
Yes. The SE125X350 is dimensionally interchangeable with any ISO 15552 profile cylinder, matching standard mounting interfaces and PT1/2 port locations. It features a no-tie-rod extruded barrel and does not include a position sensor magnet on this specific SKU.
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