Airtac SAI50 Standard Cylinder SAI50X550S
The AirTAC SAI50 Standard Cylinder SAI50X550S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 550mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke550 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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 SAI50 Standard Cylinder SAI50X550S
The AirTAC SAI50X550-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force and 825 N of pull force at 0.5 MPa. With a 50 mm bore and 550 mm stroke, this unit is purpose-built for applications requiring substantial reach without sacrificing standardized mounting dimensions. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into existing ISO 15552 footprints.
This specific configuration includes a magnet for position sensing (-S) and utilizes a standard carbon steel piston rod. The barrel features integrated sensor grooves on both sides, allowing for seamless installation of CMSE or DMSE magnetic switches. For environments requiring elevated temperature resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) options to match demanding operational constraints.
Airtac SAI50 Standard Cylinder SAI50X550S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X550S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 SAI50 Standard Cylinder SAI50X550S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×550 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI50 Standard Cylinder SAI50X550S Is Used
Long-Stroke Clamping
Ideal for reaching across wide workpieces to secure parts during heavy machining, utilizing its 550 mm extension and 982 N of thrust at 0.5 MPa.
Material Diversion
Pushes products across wider belt transfers or into sorting lanes where standard stroke lengths fall short of the required reach.
Vertical Lifting
Raises lightweight pallets or containers through a 550 mm vertical distance, with the -S magnet enabling precise upper and lower limit confirmation.
Is the Airtac SAI50 Standard Cylinder SAI50X550S the Right Cylinder?
Selecting this 50 mm bore over a smaller 40 mm option upgrades your thrust from 628 N to 982 N at 0.5 MPa, while stepping up to a 63 mm bore would yield 1559 N if your pneumatic system requires even greater force. Because this model features a 550 mm stroke, the extended rod is susceptible to bending under side loads. To prevent premature wear on the rod bearing, implement an external guide rail or utilize a dedicated guided cylinder to absorb lateral forces.
This cylinder uses PT tapered port threads and a G1/4 air connection. It is dimensionally interchangeable with other ISO 15552 cylinders, allowing direct replacement using existing FA flange or LB foot mounts. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; if your application must hold a load securely without live air pressure, specify the SAIL variant or install an external rod lock.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for 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 (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI50 Standard Cylinder SAI50X550S FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X550-S is dimensionally interchangeable per ISO 15552 standards. You can drop it into existing setups using standard FA, FB, LB, or TC mounting accessories without modifying the machine footprint.
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