This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X660S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI100 Standard Cylinder SI100X660S
The AirTAC Airtac SI100 Standard Cylinder SI100X660S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 660mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X660S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke660 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X660S
- 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 SI100 Standard Cylinder SI100X660S
The AirTAC SI100X660S is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 660 mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this EOL unit with the SAI100X660S, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. The built-in magnet supports CS1-B/DS1-B sensors, and rod materials include carbon steel, SUS420J2, or SUS304.
Airtac SI100 Standard Cylinder SI100X660S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X660S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X660S |
| Bore size | Ø100 mm |
| Stroke | 660 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X660S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAI100X660S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X660S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×660 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI100 Standard Cylinder SI100X660S Is Used
Heavy Material Transfer
Drives robust pallet stops and heavy product diverters on high-capacity packaging lines, utilizing the 3927 N push force to reliably shift loaded fixtures.
Long-Stroke Pressing
Executes 660 mm extended pressing and forming operations where sustained travel is required to seat components or apply consistent clamping pressure.
Replacing the Airtac SI100 Standard Cylinder SI100X660S with the SAI100X660S
To replace the SI100X660S, order the SAI100X660S direct cylinder, verifying the ISO 15552 mounting interface, G1/2 port, M20x1.5 rod thread, and the -S magnet for legacy CS1-B/DS1-B sensors. When sizing, a 100 mm bore yields 3927 N push at 0.5 MPa; dropping to an 80 mm bore gives 2513 N, while a 125 mm bore provides 6136 N. Because the 660 mm stroke invites rod bending, use external guides to prevent side loads. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X660S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X660S FAQ
Yes, the SI100X660S is discontinued. The direct replacement is the SAI100X660S. It shares the identical ISO 15552 mounting interface, 100 mm bore, 660 mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The bore is 100 mm with a G1/2 air port. At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X660S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X660S replacement — usually within 7-8 hours.