Airtac SAI100 Standard Air Cylinder SAI100BX185S
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100BX185S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 185mm 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
- Stroke185 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100BX185S
The AirTAC SAI100X185-S is a double-acting ISO 15552 profile cylinder featuring a 100mm bore and a 185mm stroke. Because 185mm is not a standard catalogue length, it is produced as a made-to-order non-standard stroke. It delivers a robust push force of 3927N at 0.5 MPa, making it well-suited for heavy-duty positioning and high-inertia automation tasks.
This variant is configured with a SUS304 stainless steel rod for superior corrosion resistance, PT tapered port threads, and an integrated magnet (-S) that enables direct mounting of CMSE or DMSE series sensor switches along the dual extruded barrel grooves. The extruded aluminum profile design eliminates tie-rods, providing a clean exterior that resists mechanical contamination.
Airtac SAI100 Standard Air Cylinder SAI100BX185S Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100BX185S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 185 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 SAI100BX185S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×185 | 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 SAI100BX185S Is Used
Heavy-Duty Pressing
Provides 3927N of push force at 0.5 MPa for assembling bearings, pressing pins, and seating heavy mechanical components securely.
Pallet Diversion
Generates enough power to redirect heavy pallets or redirect large packages on high-throughput packaging and sorting conveyor lines.
Automated Welding
The SUS304 stainless steel rod withstands harsh industrial environments, making it ideal for positioning heavy welding jigs and robotic fixtures.
Is the Airtac SAI100 Standard Air Cylinder SAI100BX185S the Right Cylinder?
Select this 100mm bore when your application requires substantial thrust—stepping down to an 80mm bore drops the 0.5 MPa push force to 2513N, while moving up to 125mm increases it to 6136N. At 185mm stroke, side-load stress on the rod bearing is moderate, but always verify that rigidly attached loads are guided to prevent binding. Although 185mm is below the 300mm threshold requiring extensive external guidance, ensuring linear motion remains true will extend seal life.
For drop-in replacements, this cylinder matches the ISO 15552 mounting interface exactly. You can reuse existing FA, FB, CA, or TC accessory hardware. Note that this standard double-acting SAI relies on live air pressure to hold position; if power fails, the piston will drift. For dead-end load holding, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant instead. The adjustable air cushions at both ends only decelerate the piston near stroke end and do not function as a brake.
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 SAI100BX185S FAQ
At a 0.5 MPa operating pressure, this 100mm bore cylinder generates 3927N of push force and 3681N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 5497N.
Yes, the SAI100X185-S is dimensionally interchangeable per ISO 15552. It matches the standard mounting footprint and port sizes (G1/2) of other ISO 15552 profile cylinders, allowing for seamless drop-in replacement without modifying your machine layout.
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