Airtac SE50 Standard Cylinder SE50X85S
The AirTAC Airtac SE50 Standard Cylinder SE50X85S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 85mm 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
- Stroke85 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50X85S
The AirTAC SE50X85S is a double-acting single-rod profile cylinder operating to the ISO 15552 / VDMA 24562 standard. It generates 982 N of push force at 0.5 MPa and features a 50 mm bore paired with an 85 mm stroke. The extruded aluminum barrel design omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while protecting internal mechanics.
Equipped with a built-in magnet (-S), this unit interfaces directly with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. The field-adjustable pneumatic cushioning at both ends allows technicians to tune end-stop deceleration via a set screw, softening impacts during high-speed cycling.
Airtac SE50 Standard Cylinder SE50X85S Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50X85S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 85 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 SE50X85S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×85 | 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 SE50X85S Is Used
CNC Lathe Door Actuation
Provides 982 N of push force to automate the sliding safety guard of a CNC lathe, using the 85 mm stroke to clear the work envelope rapidly.
Carton Flap Folding
Drives the mechanical arms that fold corrugated carton flaps prior to sealing, benefiting from the adjustable end cushions to prevent hard slamming at high cycle rates.
Bottle Lane Diverter
Pushes filled bottles into single-file lanes on a packaging conveyor, utilizing the built-in -S magnet and DMSE sensors to confirm arm retraction.
Is the Airtac SE50 Standard Cylinder SE50X85S the Right Cylinder?
Generating 982 N push at 0.5 MPa, this 50 mm bore fits medium-duty positioning. If your payload is lighter, stepping down to the 40 mm bore yields 628 N push, while upgrading to the 63 mm bore provides 1559 N for heavier clamping. Remember that a standard SE cylinder relies on live air pressure; if the air supply drops or a valve centers, the piston will drift and cannot hold a vertical load. For fail-safe holding, integrate an external pilot-operated check valve or specify a BSE series rod lock.
At 85 mm, the stroke is short enough to avoid rod-bearing bending, but the M16x1.5 thread and 20 mm rod carry good lateral stability. Because the footprint matches ISO 15552 interface dimensions, it serves as a direct drop-in replacement for other ISO 15552 cylinders, reusing existing LB foot or FA front flange mounting hardware and PT1/4 port connections.
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 SE50X85S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At 0.7 MPa, the push force increases to 1374 N. The maximum push force is 200 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
Yes. The SE50X85S is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. You can mount it using existing hardware and it will match the standardized footprint, though it is a profile cylinder with an extruded barrel rather than a tie-rod design.
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