Airtac SE50 Standard Cylinder SE50AX185S
The AirTAC Airtac SE50 Standard Cylinder SE50AX185S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø50mm bore and 185mm 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
- Stroke185 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SE50 Standard Cylinder SE50AX185S
The AirTAC SE50AX185S is a double-acting single-rod profile cylinder built to the ISO 15552 / VDMA 24562 standard, delivering 982 N of push force and 825 N of pull force at 0.5 MPa. It features a 50 mm bore, a 185 mm stroke, and a PT1/4 port. Equipped with a SUS420J2 stainless steel piston rod, this unit is specifically designed for corrosive environments and washdown duty where a standard carbon steel rod would fail.
The square extruded aluminum barrel eliminates external tie rods, resulting in a compact footprint that mounts flush against machine frames while offering inherent corrosion resistance. Field-adjustable air cushions at both ends allow technicians to tune end-of-stroke deceleration via a set screw, protecting machinery from hard impacts. The integrated magnet supports CMSE reed and DMSE electronic position sensors directly in the body's sensor grooves.
Airtac SE50 Standard Cylinder SE50AX185S Technical Specifications
| Model | Airtac SE50 Standard Cylinder SE50AX185S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 185 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 SE50AX185S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×185 | 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 SE50AX185S Is Used
Bottling Line Diverter
Leveraging the 982 N push force and SUS420J2 stainless rod to reliably actuate routing gates in washdown beverage bottling lines without succumbing to moisture corrosion.
Palletizer Flap Control
Utilizes the 185 mm stroke to open and close cardboard flap control mechanisms on automated palletizers, with adjustable cushions softening the end stops at high cycle rates.
Press Brake Backgauge
Positions sheet metal backgauges on press brakes where the 825 N retract force and ISO 15552 mounting precision ensure repeatable 50 mm bore positioning.
Is the Airtac SE50 Standard Cylinder SE50AX185S the Right Cylinder?
If your application requires less force, the adjacent 40 mm bore cylinder provides 628 N of push at 0.5 MPa, whereas stepping up to the 63 mm bore yields 1559 N for heavier payloads. Because this is a standard ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders, sharing standard mounting accessories like FA front flanges or LB foot brackets.
Keep in mind that a plain double-acting cylinder does not hold its position or load when air is lost or the valve is centered; the piston will drift. For applications requiring mid-stroke holding without live pressure, consider the BSE rod lock variant. Furthermore, with a 185 mm stroke, the 20 mm diameter rod and its bearing are well-supported, but if you push the stroke beyond 300 mm, you should add an external guide 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 SE50 Standard Cylinder SE50AX185S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force is 1374 N, with a maximum push capacity of 200 kgf at 1.0 MPa. The operating speed ranges from 30 to 800 mm/s.
Yes, the SE50AX185S is dimensionally interchangeable per ISO 15552 standards, meaning it shares the exact same mounting footprint and port locations (PT1/4) as other ISO 15552 profile cylinders, allowing for a direct drop-in retrofit.
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