This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X228, 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 SI100X228
The AirTAC Airtac SI100 Standard Cylinder SI100X228 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 228mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X228, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke228 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X228
- 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 SI100X228
The AirTAC SI100X228 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 228mm stroke, delivering 3927 N push force at 0.5 MPa. AirTAC replaced it with the SAI100X228 direct replacement, which shares the exact same ISO 15552 mounting interface, G1/2 port, and output force.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Since this specific SI SKU lacks the -S magnet, it cannot accept a sensor.
Airtac SI100 Standard Cylinder SI100X228 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X228 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X228 |
| Bore size | Ø100 mm |
| Stroke | 228 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 SAI100X228 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 SAI100X228 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 SI100X228
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×228 | 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 SI100X228 Is Used
Heavy Pressing
Drives 3927 N at 0.5 MPa for seating bearings or stamping heavy plates in automated lines.
Material Diversion
Actuates large lane changers or heavy-duty diverters requiring high force over short travel.
Replacing the Airtac SI100 Standard Cylinder SI100X228 with the SAI100X228
To replace the SI100X228, order the SAI100X228 keeping the identical 100mm bore, 228mm stroke, G1/2 port, and ISO 15552 mounting. If you need position feedback, select an SAI100X228S instead, as this no-S SKU cannot take a sensor. The 100mm bore yields 3927 N push at 0.5 MPa; if you need less force, an 80mm bore gives 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant for load holding. With a 228mm stroke, ensure guide alignment to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X228
- ✓ 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 SI100X228 FAQ
Yes, the SI100X228 is discontinued. The direct replacement is the SAI100X228, which shares the same ISO 15552 mounting interface, 100mm bore, 228mm stroke, output force, and G1/2 port. It fits existing fixtures directly.
The G1/2 port bore delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X228
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X228 replacement — usually within 7-8 hours.