Airtac SE125 Standard Cylinder SE125X475
The AirTAC Airtac SE125 Standard Cylinder SE125X475 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 475mm 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
- Stroke475 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X475
The AirTAC SE125X475 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics, delivering a substantial 6136 N push force at 0.5 MPa and up to 8590 N at 0.7 MPa. Its square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while exposing standardized ISO 15552 dimensions for seamless retrofitting. This specific SKU lacks the S magnet option, meaning it is not equipped for electronic or reed position sensing out of the box.
To manage the kinetic energy of its 32 mm diameter hard-chrome rod and heavy payloads, the cylinder features field-adjustable air cushioning at both ends. Rather than a fixed rubber bumper that degrades over time, these cushion screws allow technicians to tune the end-of-stroke deceleration profile, effectively softening hard stops even at the maximum 30-500 mm/s operating speed range. The 475 mm stroke provides the extended reach necessary for large-format automation.
Airtac SE125 Standard Cylinder SE125X475 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X475 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 475 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 SE125X475
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×475 | 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 SE125X475 Is Used
Injection Mold Platen Ejection
Provides the 6136 N push at 0.5 MPa required to eject heavy plastic parts from large injection molding platens, using the 475 mm stroke to clear the machine bed entirely.
Automotive Press De-stacking
Separates thick steel blanks in automated servo press lines, where the 8590 N extend force at 0.7 MPa overcomes magnetic adhesion and die lubrication drag.
Heavy Gauge Metal Bending
Drives the wiper die on a large CNC rotary draw bender, applying steady clamping pressure on heavy-walled structural tubing without deflecting under load.
Is the Airtac SE125 Standard Cylinder SE125X475 the Right Cylinder?
Selecting the SE125X475 is appropriate when your mechanism demands maximum thrust, but sizing requires checking both neighbors. Stepping down to the 100 mm bore yields a 3927 N push at 0.5 MPa, which may undershoot your load requirements, while moving up is not an option as 125 mm is the largest standard SE bore. Because this SKU omits the S magnet, it cannot host CMSE or DMSE sensors; if your sequence control requires position feedback, you must specify an SE125X475S or add external mechanical limit switches. Furthermore, this is a standard double-acting cylinder, so the adjustable air cushion only decelerates the piston near the stroke ends—it does not hold the load if air pressure drops; for fail-safe holding of a 1252 kgf payload, consider the BSE rod lock variant.
At 475 mm of stroke, the unsupported length of the 32 mm rod introduces a bending moment under side loads. To prevent premature rod-bearing wear and seal failure, an external linear guide should be incorporated to carry any lateral forces, ensuring the cylinder remains a pure linear thrust generator.
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 SE125X475 FAQ
The SE125X475 generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force increases to 8590 N, with an absolute maximum push of 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore cylinder is 30-500 mm/s.
Yes, the SE125X475 is a true ISO 15552 profile cylinder with a PT1/2 port and M27x2 rod thread. It is dimensionally interchangeable with other ISO 15552 cylinders, allowing you to reuse existing mounting hardware and drop it directly into existing foot or flange brackets without modifying the frame.
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