This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X225, 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 SI100X225
The AirTAC Airtac SI100 Standard Cylinder SI100X225 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 225mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X225, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke225 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X225
- 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 SI100X225
The AirTAC SI100X225 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 225mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X225, matching the exact interface, force, and mounting.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure and long life. This SKU lacks a magnet, so it cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 150C.
Airtac SI100 Standard Cylinder SI100X225 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X225 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X225 |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAI100X225 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 SAI100X225 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 SI100X225
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SI100X225 Is Used
Heavy Press Clamping
Ideal for securing heavy fabrication parts during machining, utilizing the 3927N push force to hold components rigidly against the fixture bed.
Pallet Diversion
Drives robust routing gates on high-capacity conveyor lines, where the 225mm stroke provides ample travel to redirect heavy pallets off the main belt.
Replacing the Airtac SI100 Standard Cylinder SI100X225 with the SAI100X225
To replace the SI100X225, order the SAI100X225. Confirm the ISO 15552 mounting interface, 100mm bore, 225mm stroke, G1/2 port, and M20x1.5 rod thread. Because this SKU lacks a magnet, it cannot accept CS1-B/DS1-B sensors; order an -S version if position detection is needed. Sizing both ways: the 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore yields 6136N. A plain cylinder drifts on air loss—the cushion only decelerates—so use the SAIL or BSAI lock variant for load holding. At 225mm stroke, rod bending is low, but always guide side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X225
- ✓ 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 SI100X225 FAQ
Yes, the SI100X225 is discontinued. The direct replacement is the AirTAC SAI100X225. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 225mm stroke, output force, G1/2 port, and mounting interface, so it fits existing fixtures perfectly.
The G1/2 port is fixed by the 100mm bore. At 0.5MPa it provides 3927N push and 3681N pull force. At 0.7MPa push is 5497N, and at 0.9MPa it is 7068N. The theoretical maximum force is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X225
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X225 replacement — usually within 7-8 hours.