This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX220S, 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 SI100AX220S
The AirTAC Airtac SI100 Standard Cylinder SI100AX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 220mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX220S
- 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 SI100AX220S
The AirTAC SI100AX220S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 220mm stroke, and a SUS420J2 stainless steel piston rod. Delivering 3927N push force at 0.5MPa, it is replaced by the SAI100AX220S. This direct upgrade matches the G1/2 port, M20x1.5 thread, and ISO 15552 mounting interface exactly.
The SAI replacement adds an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S magnet works with legacy CS1-B/DS1-B sensors, while a Viton H seal option raises heat resistance to 150C.
Airtac SI100 Standard Cylinder SI100AX220S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX220S |
| Bore size | Ø100 mm |
| Stroke | 220 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 SAI100AX220S 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 SAI100AX220S 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 SI100AX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×220 | 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 SI100AX220S Is Used
Heavy Press Clamping
Secures large metal workpieces in machining centers using the 3927N push force at 0.5 MPa, with the SUS420J2 stainless rod resisting coolant corrosion.
Package Diverters
Actuates heavy diverting arms on high-throughput packaging lines, utilizing the 36mm adjustable air cushions to decelerate 220mm strokes smoothly.
Replacing the Airtac SI100 Standard Cylinder SI100AX220S with the SAI100AX220S
To replace this SI100AX220S, order the SAI100AX220S: it is dimensionally interchangeable per the ISO 15552 mounting interface, keeping the 100mm bore, 220mm stroke, G1/2 port, and -S magnet. Because 220mm exceeds the 100mm bore max standard stroke of 1500mm, it is a nonstandard stroke—confirm availability. If sizing down, the 80mm bore gives 2513N [email protected]; sizing up, the 125mm bore yields 6136N. For 220mm strokes, guide external rods to prevent side-load bending. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX220S
- ✓ 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 SI100AX220S FAQ
Yes, the SI100AX220S is discontinued. The direct replacement is the SAI100AX220S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 220mm stroke, G1/2 port, and mounting interface to fit existing fixtures.
The G1/2 port bore delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX220S replacement — usually within 7-8 hours.