Airtac SE40 Standard Cylinder SE40BX120
The AirTAC SE40 Standard Cylinder SE40BX120 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 SE40BX120
The AirTAC SE40BX120 is a double-acting ISO 15552 profile cylinder engineered for rigorous linear motion tasks. It delivers a robust 628 N push at 0.5 MPa alongside a 528 N pull, utilizing a 16 mm rod and a PT1/4 port. Equipped with a SUS304 stainless steel rod, this specific SKU is purpose-built for corrosive environments and washdown duty where standard carbon steel rods would fail.
The extruded aluminum barrel design omits external tie rods, yielding a compact footprint that mounts flush against machine frames while resisting corrosion. Field-adjustable air cushioning at both ends allows technicians to tune end-of-stroke deceleration via a set screw, softening hard impacts during high-speed cycling. Note that this configuration ships without a sensor magnet, so position detection requires an external switch or a different variant.
Airtac SE40 Standard Cylinder SE40BX120 Technical Specifications
| Model | Airtac SE40 Standard Cylinder SE40BX120 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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 SE40BX120
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 SE40BX120 Is Used
Pharmaceutical Valve Actuation
Drives diverter valves on sanitary piping networks, where the SUS304 rod withstands daily caustic CIP washdown cycles without pitting.
Form-Fill-Seal Jaw Control
Actuates sealing jaws on vertical packaging lines, using its 628 N thrust to crimp pouches while the adjustable cushion prevents product-jarring end stops.
Bottle Routing Diverter
Pushes product guide rails to sort containers on a filling line, relying on the 120 mm stroke to clear the conveyor path during format changeovers.
Is the Airtac SE40 Standard Cylinder SE40BX120 the Right Cylinder?
Selecting this 40 mm bore makes sense when an application requires around 628 N of push force at 0.5 MPa. If your project demands less thrust, stepping down to the 32 mm bore yields 402 N of push; conversely, scaling up to the 50 mm bore provides 982 N. Because this is a standard 120 mm stroke within a 40 mm bore, it drops directly into existing ISO 15552 mounting hardware using basic or flange accessories.
The SUS304 rod is the defining feature here, making it the superior choice over standard rods in food processing or chemical washdown settings. Remember that the adjustable air cushion only decelerates the piston near stroke end; it does not hold a load. If your machinery loses air pressure, the cylinder will drift, requiring a pilot-operated check valve or a BSE rod lock for true position 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 SE40 Standard Cylinder SE40BX120 FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N, with a maximum push capacity of 128 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
Yes, it is dimensionally interchangeable with other ISO 15552 profile cylinders, sharing identical mounting and port dimensions. However, this specific SKU lacks a built-in magnet, so it cannot host CMSE or DMSE electronic position sensors without modifying the piston assembly.
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