Airtac SE125 Standard Cylinder SE125BX175S
The AirTAC Airtac SE125 Standard Cylinder SE125BX175S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 175mm 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
- Stroke175 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX175S
The AirTAC SE125BX175S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics, delivering a robust 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush into tight machinery spaces while maintaining the standardized ISO 15552 interface.
This specific configuration integrates a SUS304 stainless steel piston rod (code B) for superior resistance in corrosive or washdown environments, and includes a built-in magnet (code S) for seamless positioning feedback via CMSE reed or DMSE electronic sensors. Field-adjustable pneumatic cushioning at both ends allows precise deceleration tuning to absorb the high kinetic energy of its 125 mm bore at speeds up to 30-500 mm/s.
Airtac SE125 Standard Cylinder SE125BX175S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX175S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 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 SE125BX175S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 SE125BX175S Is Used
Heavy-Duty Press Brake Tooling
Provides the 6136 N push at 0.5 MPa required to actuate large press brakes and heavy metal-forming machinery, utilizing the SUS304 rod to withstand harsh industrial environments.
Food Processing Washdown Ejector
Executes part ejection on stainless food-grade processing lines where the SUS304 rod resists aggressive chemical washdowns, while the DMSE sensor tracks the 175 mm stroke precisely.
Automotive Welding Fixture Clamp
Handles high-force clamping on automotive body-in-white welding fixtures, where the extruded profile barrel allows flush mounting and the CMSE reed switch confirms clamp engagement.
Is the Airtac SE125 Standard Cylinder SE125BX175S the Right Cylinder?
Generating 6136 N of push at 0.5 MPa, this 125 mm bore cylinder sits at the top of the SE range. If your application requires less force, stepping down to the 100 mm bore yields 3927 N push at 0.5 MPa, whereas this SE125X175S variant is selected when maximum thrust is necessary. Because the 175 mm stroke is below the 300 mm threshold, standard bearing side-load capacity is sufficient without an external guide.
For drop-in retrofits, verify the bore, 175 mm stroke, PT1/2 port, and mounting accessory. Note that the adjustable air cushion only decelerates the piston near the stroke end; it does not hold the load. If the machine must maintain position without live air pressure, an external pilot-operated check valve or a BSE rod lock variant 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 SE125BX175S FAQ
The SE125BX175S generates 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. The operational speed range for this 125 mm bore cylinder is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552 mounting interfaces for direct drop-in replacement. The field-adjustable air cushion at both ends uses a needle screw to tune deceleration, softening hard end stops at speed, but it is not a locking mechanism.
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