Airtac SE125 Standard Cylinder SE125X120
The AirTAC Airtac SE125 Standard Cylinder SE125X120 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 120mm 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
- Stroke120 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X120
The AirTAC SE125X120 is a double-acting single-rod profile cylinder built to ISO 15552 standards, delivering a robust 6136 N push force at 0.5 MPa. Its extruded aluminum barrel lacks external tie rods, yielding a compact, corrosion-resistant footprint that mounts flush against machine frames. This heavy-duty actuator uses a PT1/2 port and a Ø32 mm rod to handle substantial industrial loads.
Field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration, preventing hard impacts when moving heavy masses at up to 500 mm/s. This SKU ships without a sensor magnet, relying on its M27x2 rod thread and standardized mounting interface to seamlessly replace any ISO 15552 cylinder in legacy setups.
Airtac SE125 Standard Cylinder SE125X120 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X120 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 120 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 SE125X120
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×120 | 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 SE125X120 Is Used
Stamping Press Ejection
Provides the heavy 6136 N push force required to knock thick steel blanks from progressive stamping dies, utilizing its 120 mm stroke for rapid part clearance.
Injection Mold Platen Shift
Shifts heavy injection molding platens into locking position, leveraging the robust Ø32 mm rod to absorb high initial side-loading during mold alignment.
Heavy Gauge Metal Bending
Drives the primary ram in thick-walled tube bending fixtures, where the field-adjustable cushion softens the transition at stroke end to prevent workpiece deformation.
Is the Airtac SE125 Standard Cylinder SE125X120 the Right Cylinder?
Selecting the SE125X120 is ideal when you need maximum thrust, offering 6136 N push at 0.5 MPa and a maximum 1252 kgf output at 1.0 MPa. If you need to step down, the next smaller bore is the 100 mm size, which provides 3927 N of push force at 0.5 MPa. As the largest standard bore in the SE range, there is no larger neighbor to step up to within this series.
For retrofitting, this cylinder maps directly to the ISO 15552 dimensional interface: a 125 mm bore, 120 mm stroke, PT1/2 port, and your choice of mounting accessory. Because it lacks a position magnet, adding CMSE or DMSE sensors requires a different SKU with the -S option. Remember that the adjustable air cushion only decelerates the piston near stroke end; it is not a locking mechanism. If your application must hold a vertical load without live air pressure, use a BSE rod lock variant or an external pilot-operated check valve.
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 SE125X120 FAQ
At 0.5 MPa, the SE125X120 generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N. The maximum push force is 1252 kgf at 1.0 MPa. The operating speed range for this 125 mm bore is 30-500 mm/s.
Yes, it is dimensionally interchangeable with any ISO 15552 profile cylinder, sharing standard mounting and PT1/2 port dimensions. However, it does not hold position when air is lost; the cushion only decelerates the piston and is not a brake. For load holding, consider the BSE rod lock variant.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SE125 Standard Cylinder SE125X120
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.