Airtac SE125 Standard Cylinder SE125BX150S
The AirTAC Airtac SE125 Standard Cylinder SE125BX150S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 150mm 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
- Stroke150 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX150S
The AirTAC SE125BX150S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It delivers a substantial 6136 N push force at 0.5 MPa, utilizing a 125 mm bore and 150 mm stroke. The extruded aluminum barrel design omits external tie rods, yielding a compact, flush-mounting body that resists corrosion and simplifies sensor placement along its three integrated grooves.
Configured for harsh environments, this specific unit features a SUS304 stainless steel rod (code B) for superior washdown and corrosion resistance. The integrated magnet (code S) enables precise end-position detection with AirTAC CMSE reed or DMSE electronic sensors. Field-adjustable air cushioning at both ends allows technicians to tune the end-of-stroke deceleration, smoothly dampening the kinetic energy of this high-thrust piston without relying on fixed rubber bumpers.
Airtac SE125 Standard Cylinder SE125BX150S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX150S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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 SE125BX150S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 SE125BX150S Is Used
Pulp & Paper Pulp Press
Drives the heavy pressing platen in a pulp press, utilizing 6136 N of push at 0.5 MPa to dewater fibrous slurries while the SUS304 rod withstands the humid, caustic washdown environment.
Stainless Steel Tube Cutoff
Actuates the heavy-duty shear blade assembly for cutting thick-walled stainless steel tubing, relying on the 125 mm bore's 8590 N thrust at 0.7 MPa to sever the metal cleanly.
Bulk Drum Fill Head
Lowers and seals the fill head on 200-liter chemical drums, using the 150 mm stroke and DMSE electronic sensors to verify fill nozzle insertion without splashing hazardous fluids.
Is the Airtac SE125 Standard Cylinder SE125BX150S the Right Cylinder?
Selecting the SE125BX150S is appropriate when your mechanism requires substantial thrust, generating 6136 N of push at 0.5 MPa. If you need to step down to save air and footprint, the adjacent 100 mm bore provides 3927 N at 0.5 MPa; conversely, the 125 mm is the largest standard SE bore available, offering a maximum push of 1252 kgf at 1.0 MPa. Because this cylinder uses a SUS304 rod for washdown duty, ensure your external mounting hardware matches the environmental demands. As a standard ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders, sharing identical mounting interface dimensions and PT1/2 ports. Remember that the adjustable air cushion only decelerates the piston near stroke end; it is not a locking device. If the machinery must hold a vertical load without live air pressure, integrate an external BSE rod lock or 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 SE125BX150S FAQ
The 125 mm bore 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 is 8590 N. The maximum push force is 1252 kgf at 1.0 MPa. The operational speed range for this bore size is 30-500 mm/s.
Yes, the SE125BX150S is dimensionally interchangeable per ISO 15552, meaning it shares the exact same mounting footprint, PT1/2 port size, and M27x2 rod thread as other standard ISO 15552 profile cylinders for seamless retrofitting.
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