Airtac SE40 Standard Cylinder SE40BX250S
The AirTAC SE40 Standard Cylinder SE40BX250S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø40mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SE40 Standard Cylinder SE40BX250S
The AirTAC SE40BX250S is a double-acting, single-rod ISO 15552 profile cylinder engineered for a 40 mm bore and a 250 mm stroke. It delivers a robust 628 N push at 0.5 MPa, making it well-suited for mid-range industrial actuation. The SUS304 stainless steel rod provides excellent corrosion resistance for washdown or high-moisture environments.
Unlike traditional tie-rod bodies, this unit features a square extruded aluminum barrel that mounts flush against machine frames while resisting external corrosion. The integrated -S magnet allows seamless position detection using AirTAC CMSE reed or DMSE electronic sensors fitted directly into the triple-sided sensor grooves. Furthermore, the field-adjustable pneumatic cushioning at both ends allows technicians to fine-tune end-of-stroke deceleration, softening hard impacts during high-speed cycling.
Airtac SE40 Standard Cylinder SE40BX250S Technical Specifications
| Model | Airtac SE40 Standard Cylinder SE40BX250S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE40 Standard Cylinder SE40BX250S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 SE40 Standard Cylinder SE40BX250S Is Used
Flow Wrapper End-Sealing
Actuates the sealing jaw mechanism on continuous motion flow wrappers, utilizing the 628 N push force to cleanly cut and seal packaging films.
Bottle Diverter Gate
Pivets sorting gates on stainless steel conveyor lines in beverage bottling plants, relying on the SUS304 rod to withstand daily washdowns.
Component Ejection Station
Ejects machined aluminum parts from a CNC fixture, using the 250 mm stroke to clear the work envelope before the next cycle begins.
Is the Airtac SE40 Standard Cylinder SE40BX250S the Right Cylinder?
If your application requires less force, the 32 mm bore offers 402 N of push at 0.5 MPa, whereas stepping up to the 50 mm bore yields 982 N for heavier loads. Because this is a standard double-acting cylinder, it will not hold a load if air pressure is lost or the valve centers; the piston will drift. For dead-load holding, consider a BSE rod lock variant. When retrofitting, match the 40 mm bore, 250 mm stroke, PT1/4 port, and your specific mounting accessory. Given the 250 mm stroke, ensure the load is guided externally to prevent rod-bearing bending under side loads.
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 SE40 Standard Cylinder SE40BX250S FAQ
At 0.5 MPa, the SE40BX250S provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push increases to 879 N, with a maximum push of 128 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
Yes, the SE40BX250S is dimensionally interchangeable per ISO 15552 standards, allowing it to serve as a direct replacement for other ISO 15552 profile cylinders without altering mounting footprints. You can easily attach CMSE or DMSE sensors to the integrated grooves.
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