This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X100S, 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 SI100X100S
The AirTAC Airtac SI100 Standard Cylinder SI100X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X100S
- 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 SI100X100S
The AirTAC SI100X100S is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 100 mm stroke. Built with an extruded aluminum barrel, it delivers 3927 N of push force at 0.5 MPa. Because this SI unit is end-of-life, you should order the direct replacement: the SAI100X100S. It shares the same ISO 15552 mounting interface, 100 mm stroke, G1/2 port, and output force, fitting your existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for extended lifespan and lower start-up pressure. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family also adds SAIL, SAIF, and BSAI lock or valve variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X100S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X100S |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAI100X100S 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 SAI100X100S 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 SI100X100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | 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 SI100X100S Is Used
Heavy Press Clamping
Applies up to 7068 N of push force at 0.9 MPa to secure heavy metal components during machining or stamping operations.
Bulk Material Diversion
Actuates large routing gates on high-capacity conveyor lines, utilizing the 100 mm stroke to redirect heavy packages.
Replacing the Airtac SI100 Standard Cylinder SI100X100S with the SAI100X100S
To replace the discontinued SI100X100S, order the SAI100X100S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the 100 mm stroke, and the G1/2 port. Because this unit has the -S magnet, it supports CS1-B/DS1-B switches; the SAI replacement uses current AirTAC sensors. For sizing, a 100 mm bore yields 3927 N push at 0.5 MPa, while the neighboring 80 mm bore provides 2513 N. If you need to hold a load vertically without live air, note that a plain cylinder drifts; the cushion only decelerates. Use an external pilot check valve, or select the SAIL or BSAI lock variant. Rod material options include carbon steel, SUS420J2, or SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X100S
- ✓ 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 SI100X100S FAQ
Yes, the SI100X100S is discontinued. The direct replacement is the AirTAC SAI100X100S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100 mm bore, 100 mm stroke, output force, G1/2 port, and mounting compatibility.
The G1/2 port is fixed by the 100 mm bore. Force ratings are: 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X100S replacement — usually within 7-8 hours.