Airtac SE125 Standard Cylinder SE125X155S
The AirTAC Airtac SE125 Standard Cylinder SE125X155S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 155mm 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
- Stroke155 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X155S
The AirTAC SE125X155S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. It leverages a robust Ø32 mm rod and a PT1/2 port to generate 6136 N of push force at 0.5 MPa, scaling up to 8590 N at 0.7 MPa. The extruded aluminum barrel omits external tie rods, yielding a sleek, corrosion-resistant body that mounts flush against machine frames without snagging adjacent mechanics.
Because this unit includes the -S magnet code, it is fully primed for position sensing via CMSE reed or DMSE electronic switches seated in the body's three-sided sensor grooves. Field-adjustable air cushions at both stroke ends allow technicians to fine-tune end-of-stroke deceleration, softening hard impacts that typically occur when moving massive loads at high speeds.
Airtac SE125 Standard Cylinder SE125X155S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X155S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 155 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 SE125X155S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×155 | 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 SE125X155S Is Used
Automotive Stamping Press Ejection
Drives heavy sheet metal panels out of large stamping dies, utilizing the 6136 N push force to reliably eject parts resisting vacuum suction.
Heavy-Duty Metal Straightener
Applies sustained downward pressure to warp or bend thick structural steel beams, relying on the 1252 kgf max output to yield high-tensile material.
Palletizer Pneumatic Clamp
Secures heavy industrial pallets or large machinery blocks during transfer, using the -S magnet and DMSE sensors to verify clamp engagement before robotic lifting.
Is the Airtac SE125 Standard Cylinder SE125X155S the Right Cylinder?
Selecting the SE125X155S means you require maximum thrust, as this 125 mm bore sits at the top of the SE range delivering a 1252 kgf maximum push at 1.0 MPa. If a smaller footprint is viable, stepping down to the 100 mm bore reduces the 0.5 MPa push to 3927 N, saving space and air volume. Conversely, if your assembly lacks this peak thrust, you cannot step up further within the SE line, making this the definitive choice for extreme load driving. Remember that a plain SE cylinder will drift and cannot hold a load if air pressure drops; for vertical position holding, integrate an external pilot-operated check valve or specify a BSE rod lock variant.
With a 155 mm stroke, the unsupported mass of the piston and rod is moderate, but the sheer weight of the 125 mm internals places substantial bending loads on the rod-bearing. For heavy off-center or lateral loads, incorporating an external guide rail alongside the cylinder prevents premature seal wear and ensures smooth operation. This model serves as a dimensionally interchangeable drop-in replacement for any ISO 15552 cylinder, streamlining retrofit and procurement processes.
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 SE125X155S FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. 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 is 30-500 mm/s.
No, the field-adjustable air cushions at both ends only decelerate the piston near the stroke end and do not act as a locking mechanism. If air is lost, the cylinder will drift. For position holding, you need the BSE variant with an integrated rod lock or an external pilot-operated check valve.
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