Airtac SE125 Standard Cylinder SE125BX75
The AirTAC Airtac SE125 Standard Cylinder SE125BX75 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 75mm 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
- Stroke75 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX75
The AirTAC SE125BX75 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics. It generates a substantial 6136 N push force at 0.5 MPa and features a robust 32 mm SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in washdown or chemically exposed environments.
This unit utilizes a square extruded aluminum barrel without external tie rods, yielding a compact, flush-mounting body that is highly resistant to mechanical degradation. Field-adjustable pneumatic cushioning at both stroke ends allows you to precisely tune deceleration for massive 1252 kgf moving loads, while the standard PT1/2 port ensures high flow capacity.
Airtac SE125 Standard Cylinder SE125BX75 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX75 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 75 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 SE125BX75
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 SE125BX75 Is Used
Pulp & Paper Press Rollers
Drives heavy nip rollers where the SUS304 rod withstands caustic washdowns while delivering 6136 N of steady clamping force.
Metal Stamping Ejector
Ejects thick-gauge stamped blanks from progressive dies, utilizing the 1252 kgf max thrust to overcome die-stripping friction.
Chemical Batch Valve Actuation
Actuates large-bore process knife-gate valves in chemical plants, relying on the corrosion-proof stainless steel rod for longevity.
Is the Airtac SE125 Standard Cylinder SE125BX75 the Right Cylinder?
Choosing this 125 mm bore is optimal when your application demands the maximum standard thrust in the SE range. If you need slightly less force, stepping down to the 100 mm bore yields a 3927 N push at 0.5 MPa, whereas this SE125BX75 provides the top-tier 6136 N output. Note that a plain SE cylinder will drift if air pressure is lost; for strict position holding, consider the BSE rod-lock variant. To replace an existing ISO 15552 unit, match the 75 mm stroke, PT1/2 port, and basic mounting interface.
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 SE125BX75 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125BX75 is dimensionally interchangeable per ISO 15552 standards, serving as a drop-in replacement for other ISO 15552 profile cylinders. It uses a standard PT1/2 port and M27x2 rod thread, though you must ensure your mounting hardware matches the basic footprint.
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