Airtac SE40 Standard Cylinder SE40BX400
The AirTAC SE40 Standard Cylinder SE40BX400 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 SE40BX400
The AirTAC SE40BX400 is a double-acting single-rod ISO 15552 profile cylinder engineered for a 400 mm stroke. It features a SUS304 stainless steel piston rod, making it highly suitable for corrosive environments or washdown duty. Utilizing a square extruded aluminum barrel without external tie rods, the body is compact, corrosion-resistant, and mounts flush against machine frames.
This 40 mm bore generates 628 N of push force at 0.5 MPa and 879 N at 0.7 MPa. Field-adjustable air cushioning at both ends allows you to tune the end-of-stroke deceleration via a setscrew, softening hard impacts when cycling at speeds up to 800 mm/s. This SKU is supplied without a position sensor magnet, operating via pneumatic actuation only.
Airtac SE40 Standard Cylinder SE40BX400 Technical Specifications
| Model | Airtac SE40 Standard Cylinder SE40BX400 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 SE40BX400
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 SE40BX400 Is Used
Bottling Line Diverter
Uses the 628 N push force and 400 mm stroke to route plastic bottles on a washdown conveyor, relying on the SUS304 rod to resist constant moisture exposure.
Pouch Forming Press
Extends 400 mm to drive a sealing jaw in a packaging machine, utilizing the adjustable pneumatic cushion to soften the impact at the end of each rapid cycle.
Lab Sample Ejector
Ejects processed test tubes from a chemical analyzer, where the corrosion-resistant stainless steel rod ensures reliable operation against aggressive reagents.
Is the Airtac SE40 Standard Cylinder SE40BX400 the Right Cylinder?
Selecting this 40 mm bore makes sense when your application requires 628 N push at 0.5 MPa. If you need less force, stepping down to the 32 mm bore yields 402 N push; if your load is heavier, stepping up to the 50 mm bore provides 982 N push. Because this cylinder uses a SUS304 rod (code B), it is purpose-built for damp or corrosive settings where a standard hard-chrome rod would pit. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct replacement for other ISO 15552 profile cylinders, matching the 40 mm bore, 400 mm stroke, PT1/4 port, and standardized mounting accessories without machining.
At 400 mm of stroke, the unsupported piston rod is subject to bending forces under side loads. To prevent premature seal wear and rod-bearing failure, implement an external guide mechanism to carry the load rather than letting the cylinder rod absorb the lateral stress. Remember that a standard SE cylinder does not hold its position when air pressure is lost or the valve is centered; the piston will drift. If your process requires true load holding without live pressure, integrate a BSE rod lock or an external 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 SE40 Standard Cylinder SE40BX400 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. The maximum push force is 128 kgf at 1.0 MPa. It operates at a speed range of 30-800 mm/s.
This specific SE40BX400 SKU is manufactured without a built-in magnet, so it cannot host CMSE or DMSE position sensors. Dimensionally, it is a true ISO 15552 profile cylinder, meaning it serves as a direct replacement for any standard ISO 15552 cylinder matching its 40 mm bore, 400 mm stroke, and PT1/4 port size.
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