Airtac SAI100 Standard Air Cylinder SAI100BX550
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100BX550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100BX550
The AirTAC SAI100X550 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a robust push force of 3927 N at 0.5 MPa, extending across a 550 mm stroke to drive substantial payloads. The extruded aluminum barrel eliminates tie-rods, creating a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This specific configuration utilizes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in harsh environments. Fluid ports feature PT tapered threads sized at G1/2. Because no internal magnet is specified, position sensing requires external limit switches rather than the integrated sensor grooves.
Airtac SAI100 Standard Air Cylinder SAI100BX550 Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100BX550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI100 Standard Air Cylinder SAI100BX550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAI100 Standard Air Cylinder SAI100BX550 Is Used
Heavy Stamping
Drives large pressing and stamping assemblies requiring substantial 3927 N push force at 0.5 MPa over a 550 mm travel distance.
Material Forming
Actuates heavy-duty forming dies where the SUS304 stainless rod prevents corrosion from industrial coolants and lubricants.
Pallet Transfer
Indexes heavy pallets along automated conveyor lines, utilizing the adjustable air cushions to smoothly decelerate massive loads at stroke end.
Is the Airtac SAI100 Standard Air Cylinder SAI100BX550 the Right Cylinder?
Select this 100 mm bore when an application demands more thrust than the 80 mm variant (which yields 2513 N at 0.5 MPa) but lacks the space or need for the 125 mm class. The 550 mm stroke is well within the 1500 mm maximum standard limit, yet at this length the unsupported rod is susceptible to bending under lateral stress. Employ external guide rails or a guided cylinder carriage to absorb side loads and protect the rod bearing.
As a standard double-acting actuator, this cylinder relies on continuous air pressure to maintain its position. If the air supply drops or the directional valve centers, the piston will drift. For applications requiring strict load holding without live pressure, consider the SAIL pneumatic lock variant or an external rod lock. Ensure replacement units match the G1/2 port, PT thread standard, and appropriate mounting accessory.
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 SAI100 Standard Air Cylinder SAI100BX550 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates a push force of 3927 N and a pull force of 3681 N. At 0.7 MPa, the push force increases to 5497 N.
Yes. The SAI100X550 is a true ISO 15552 profile cylinder, making its mounting dimensions fully interchangeable with other ISO 15552 cylinders from brands like Festo or SMC. Ensure your setup matches the G1/2 port size.
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