This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X900, 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 SI100X900
The AirTAC Airtac SI100 Standard Cylinder SI100X900 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X900, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X900
- 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 SI100X900
The AirTAC SI100X900 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 900mm stroke. Delivering 3927N push force at 0.5MPa via a G1/2 port, it is replaced by the direct replacement SAI100X900. This current-production model shares the exact same mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. Note this non-magnet SKU cannot accept a sensor.
Airtac SI100 Standard Cylinder SI100X900 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X900 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X900 |
| Bore size | Ø100 mm |
| Stroke | 900 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 SAI100X900 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 SAI100X900 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 SI100X900
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SI100X900 Is Used
Heavy Goods Diversion
Provides the 3927N push force needed to deflect heavy pallets across transfer lines over a 900mm reach.
Large Press Ejection
Extends 900mm to eject bulky formed parts from large industrial presses, utilizing the 7068N force at 0.9MPa.
Replacing the Airtac SI100 Standard Cylinder SI100X900 with the SAI100X900
To replace the SI100X900, order the SAI100X900. Verify the ISO 15552 mounting interface, 100mm bore, 900mm stroke, G1/2 port (PT/G/NPT thread options), and your mounting accessory. This non-magnet version cannot accept CS1-B/DS1-B sensors. Neighbouring bores: 80mm yields 2513N, 125mm yields 6136N. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, or an external pilot check valve. The 900mm stroke demands external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X900
- ✓ 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 SI100X900 FAQ
Yes, the AirTAC SI100X900 is discontinued. The direct replacement is the SAI100X900. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 900mm stroke, 3927N force, G1/2 port, and mounting interface.
The bore is 100mm with a G1/2 port. Force output is 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X900
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X900 replacement — usually within 7-8 hours.