Airtac SE125 Standard Cylinder SE125X300CA
The AirTAC Airtac SE125 Standard Cylinder SE125X300CA is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 300mm 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
- Stroke300 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X300CA
The AirTAC SE125X300CA is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks. At 125 mm bore and 0.5 MPa, it generates 6136 N of push force and 5734 N of pull force, scaling up to 8590 N push at 0.7 MPa. This substantial output makes it ideal for high-load clamping and pressing. The extruded aluminum square barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush while retaining high structural rigidity.
This specific SKU features a CA single clevis mounting accessory and a standard PT1/2 port. It lacks a built-in magnet (-S), meaning it is not equipped for CMSE or DMSE position sensing out of the box. The field-adjustable air cushion at both ends allows technicians to tune end-of-stroke deceleration via a setscrew, softening hard impacts when moving heavy masses at speeds up to 30-500 mm/s.
Airtac SE125 Standard Cylinder SE125X300CA Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X300CA |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 300 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 SE125X300CA
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 SE125X300CA Is Used
Stamping Press Ejection
Leveraging 6136 N of push force at 0.5 MPa, this cylinder reliably ejects heavy stamped metal panels from press dies.
Injection Mold Clamping
The 300 mm stroke provides ample travel for securing large injection mold halves, utilizing the 125 mm bore's massive 1252 kgf maximum holding thrust.
Pallet Lift Gates
The CA clevis mount accommodates pivoting articulation in heavy pallet lift gate mechanisms where 8590 N of thrust at 0.7 MPa is needed.
Is the Airtac SE125 Standard Cylinder SE125X300CA the Right Cylinder?
Selecting the SE125X300CA means you require maximum thrust, as this 125 mm bore is the largest standard AirTAC SE size. If you can sacrifice some power, stepping down to the 100 mm bore reduces the 0.5 MPa push force to 3927 N while saving valuable mounting space. Since this SKU features a 300 mm stroke, the 32 mm rod and M27x2 thread carry significant side-load capacity, but an external guide is strongly recommended to prevent rod-bearing bending under heavy lateral loads. As a true ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders, sharing standard mounting hardware. Remember, the adjustable air cushion only decelerates the piston near stroke end; it cannot hold a load vertically if air pressure is lost, which would require a BSE rod lock variant.
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 SE125X300CA 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 push of 1252 kgf at 1.0 MPa. Its operational speed range is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552 standards, acting as a drop-in replacement sharing standard mounting dimensions. However, it cannot hold a load unpowered; if air is lost, the piston drifts, so a BSE rod lock is needed for position holding.
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