Airtac SE125 Standard Cylinder SE125X350SN
The AirTAC Airtac SE125 Standard Cylinder SE125X350SN is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 350mm 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
- Stroke350 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X350SN
The AirTAC SE125X350SN is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics. It delivers a substantial 6136 N push force at 0.5 MPa and utilizes a PT1/2 port paired with a robust Ø32 mm rod. The NBR seal ensures reliable operation across standard temperature ranges, while the built-in magnet enables precise end-of-stroke detection.
Unlike traditional tie-rod designs, this cylinder features an extruded aluminum barrel with integrated sensor grooves on three sides, allowing for flush mounting and flexible switch placement. The field-adjustable air cushioning at both ends is a genuine deceleration mechanism, letting technicians tune the exhaust bleed to soften hard end-stops and absorb the high kinetic energy generated by moving heavy loads at up to 500 mm/s.
Airtac SE125 Standard Cylinder SE125X350SN Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X350SN |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 350 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 SE125X350SN
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×350 | 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 SE125X350SN Is Used
Hydraulic Press Takedown
Provides the heavy extraction force needed to strip large stamped metal panels from hydraulic press dies, utilizing the 6136 N push at 0.5 MPa to overcome die friction.
Palletizer Arm Lift
Actuates the main lifting yoke on automated palletizing robots, where the 350 mm stroke provides the vertical traverse required to build pallet layers.
Injection Mold Ejection
Drives the rear ejection plate on large plastic injection molding machines, using the built-in magnet to trigger DMSE sensors for precise part-release timing.
Is the Airtac SE125 Standard Cylinder SE125X350SN the Right Cylinder?
Selecting the SE125X350SN means you require maximum thrust from the standard AirTAC range, as stepping down to the 100 mm bore drops the 0.5 MPa push force to 3927 N. If you need even more power, this 125 mm bore is the largest standard ISO 15552 size available, yielding a maximum output of 1252 kgf at 1.0 MPa. Because the 350 mm stroke is substantial, the unsupported piston rod is highly susceptible to bending under side loads; always incorporate an external guide rail to prevent premature bushing wear.
This model is dimensionally interchangeable per ISO 15552, meaning it serves as a drop-in replacement for other ISO 15552 profile cylinders without altering mounting footprints. The NBR seal is standard, but if your environment involves high temperatures up to 150 C, consider the FKM (H) variant. Remember that the adjustable cushion only decelerates the piston near the stroke end; it does not hold a load. If air pressure drops, the piston will drift, so a BSE rod lock is required for fail-safe holding.
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 SE125X350SN FAQ
At 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At 0.7 MPa, the push force is 8590 N. The maximum push force is 1252 kgf when operated at the maximum pressure of 1.0 MPa.
Yes, the SE125X350SN is a true ISO 15552 / VDMA 24562 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders. It features an extruded aluminum barrel without external tie rods, a PT1/2 port, and a built-in magnet compatible with AirTAC CMSE reed and DMSE electronic sensors.
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 SE125X350SN
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.