Airtac SE125 Standard Cylinder SE125X70
The AirTAC Airtac SE125 Standard Cylinder SE125X70 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 70mm 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
- Stroke70 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X70
The AirTAC SE125X70 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic motion. Operating at 0.5 MPa, it generates a substantial 6136 N of push force and 5734 N of pull force, scaling to 8590 N push at 0.7 MPa. The extruded aluminum barrel design omits external tie rods entirely, presenting a clean, corrosion-resistant exterior that allows for flush mounting and easy integration into tight machine spaces.
This specific SKU lacks a built-in magnet, meaning it ships without position sensing out of the box. To track its 70 mm travel, you would need to specify the -S option for CMSE or DMSE switch compatibility. The field-adjustable pneumatic cushioning at both ends uses a needle screw to tailor end-of-stroke deceleration, protecting heavy 1252 kgf maximum loads from harsh mechanical impacts.
Airtac SE125 Standard Cylinder SE125X70 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X70 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 70 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 SE125X70
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×70 | 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 SE125X70 Is Used
Injection Mold Clamping
Provides 6136 N of clamping pressure at 0.5 MPa to hold heavy resin molds securely shut during low-pressure injection molding sequences.
Pallet Stopper Gate
Acts as a heavy-duty stopper arm on high-mass pallet conveyor lines, using its 70 mm stroke to cleanly block and release loaded pallets.
Press Die Ejection
Delivers up to 1252 kgf of peak push force at 1.0 MPa to eject dense forged or stamped metal components from heavy hydraulic press beds.
Is the Airtac SE125 Standard Cylinder SE125X70 the Right Cylinder?
With a 125 mm bore, this cylinder sits at the top of the SE standard range, delivering 6136 N push at 0.5 MPa. If your application requires less force, stepping down to the 100 mm bore yields 3927 N of push, which may prevent excessive cycling stress on lighter fixtures. Because this is the largest standard size, there is no larger SE bore to step up to. As a true ISO 15552 profile cylinder, it serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 cylinders, matching the PT1/2 port, 32 mm rod, and M27x2 thread. Remember that the adjustable air cushion only decelerates the piston near the stroke end; it does not hold the load. If unpowered drift is a hazard, a BSE rod lock is required.
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 SE125X70 FAQ
The SE125X70 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 operating speed range is 30-500 mm/s.
Yes, the SE125X70 is dimensionally interchangeable per ISO 15552 standards, matching the PT1/2 port, 32 mm rod, and M27x2 thread, allowing it to serve as a drop-in retrofit for other ISO 15552 profile cylinders.
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