Airtac SE50 Standard Cylinder SE50X78S
The AirTAC Airtac SE50 Standard Cylinder SE50X78S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 78mm stroke, PT1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke78 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50X78S
The AirTAC SE50X78S is a double-acting single-rod profile cylinder built to ISO 15552 dimensions, delivering a push force of 982 N at 0.5 MPa and a maximum output of 200 kgf. Its 78 mm stroke is a non-standard length, manufactured as a made-to-order unit for specific machine spacing requirements. The square extruded aluminum barrel omits external tie rods, yielding a compact body that mounts flush against frames and shrinks overall machine footprint.
Equipped with a built-in magnet (S option), this unit supports AirTAC CMSE reed and DMSE electronic position sensors along the three integrated sensor grooves. Field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration via a set screw, softening hard impacts during high-speed 30-800 mm/s cycling.
Airtac SE50 Standard Cylinder SE50X78S Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50X78S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 78 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE50 Standard Cylinder SE50X78S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×78 | 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 SE50 Standard Cylinder SE50X78S Is Used
Carton Flap Folding
Drives a 78 mm stroke arm to fold corrugated carton flaps, utilizing the 982 N push force to crease heavy cardboard cleanly before tape sealing.
Bottle Diverting Gate
Actuates a short-stroke diverter on a packaging line, using the built-in magnet and DMSE sensor to confirm gate position for high-speed bottle routing.
Sheet Metal Stopper
Acts as an adjustable stroke stop block in a press feed line, where the compact tie-rod-free profile allows tight mounting between rollers.
Is the Airtac SE50 Standard Cylinder SE50X78S the Right Cylinder?
When sizing this 50 mm bore, compare its 982 N push force against the next size down: a 40 mm bore yields 628 N at 0.5 MPa. If your application needs more thrust, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa. Because this is a custom 78 mm stroke, confirm your exact end-of-travel spacing before ordering.
This cylinder is dimensionally interchangeable with other ISO 15552 cylinders, allowing you to drop it into existing footprints (LB, FA, FB) without redesigning brackets. The PT1/4 port and M16x1.5 rod thread are standard for this bore. Note that the adjustable air cushion only decelerates the piston near stroke end; it is not a locking device. If the load must be held mechanically when air pressure drops, integrate a BSE rod lock or external pilot 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 SE50 Standard Cylinder SE50X78S FAQ
The 50 mm bore generates a push force of 982 N and a pull force of 825 N at 0.5 MPa. At 0.7 MPa, the push force is 1374 N, with a maximum push capacity of 200 kgf at 1.0 MPa. The air supply connects via a PT1/4 port.
Yes, the SE50X78S shares the exact ISO 15552 mounting interface, making it a drop-in replacement for other standard profile cylinders. The built-in magnet allows you to slide CMSE reed or DMSE electronic sensors directly into the barrel grooves without extra brackets.
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