Airtac SE125 Standard Cylinder SE125X375
The AirTAC Airtac SE125 Standard Cylinder SE125X375 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 375mm 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
- Stroke375 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X375
The AirTAC SE125X375 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It generates a substantial 6136 N push at 0.5 MPa, making it the largest standard bore in the SE lineup for high-force automation. The extruded aluminum barrel design omits external tie rods entirely, yielding a compact, flush-mounting body that resists corrosion and simplifies fixture integration.
This 125mm bore unit features a robust Ø32 mm piston rod and a PT1/2 port to handle high airflow demands. Field-adjustable air cushions at both ends allow technicians to dial in end-of-stroke deceleration, preventing harsh impacts when moving massive payloads. Note that this specific SKU is configured without a sensor magnet, so position detection via CMSE or DMSE switches is not supported out of the box.
Airtac SE125 Standard Cylinder SE125X375 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X375 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 375 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 SE125X375
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×375 | 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 SE125X375 Is Used
Automotive Press Transfer
Shifts heavy stamped metal panels between press stations, utilizing the 6136 N push force at 0.5 MPa to reliably overcome slide friction over the 375 mm travel.
Plastic Injection Mold Ejection
Drives large knockout plates on injection molding machinery, where the Ø32 mm rod and 40 mm cushion length absorb the substantial kinetic energy of heavy mold bases.
Heavy-Duty Metal Forming Clamp
Secures thick steel plates in a hydraulic bending fixture, using the maximum 1252 kgf clamping force at 1.0 MPa to prevent workpiece deflection during forming.
Is the Airtac SE125 Standard Cylinder SE125X375 the Right Cylinder?
Selecting the SE125X375 is appropriate when applications require moving heavy loads over a 375 mm stroke, as it provides a maximum push of 1252 kgf at 1.0 MPa. If you need slightly less force, the next bore down is the 100mm SE cylinder, which yields a 3927 N push at 0.5 MPa. As the largest standard ISO 15552 bore in this series, there is no larger neighbor to step up to within the SE range. Because this model lacks the -S magnet option, you cannot use AirTAC CMSE reed or DMSE electronic sensors for end-position confirmation without modifying the piston.
With a 375 mm stroke, the unsupported rod length during extension introduces a risk of rod-bearing bending under severe side loads. Implementing an external guide rail is strongly recommended to prevent premature seal wear and piston scoring. Furthermore, the adjustable pneumatic cushioning only decelerates the piston near the stroke ends; it does not lock or hold the load. If your process requires true fail-safe position holding when air pressure drops, you must integrate an external rod lock or evaluate the BSE 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 SE125X375 FAQ
The SE125X375 delivers a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N. The maximum push capacity is 1252 kgf at 1.0 MPa. Due to the large 125 mm bore, the operational speed range is 30-500 mm/s.
Yes, the SE125X375 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. You can use existing mounting accessories and drop it into fixtures designed for other ISO 15552 profile cylinders. It features a PT1/2 port and an M27x2 rod thread, matching standard interface dimensions.
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 SE125X375
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.