This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X260, 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 SI100X260
The AirTAC SI100 Standard Cylinder SI100X260 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 260mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X260, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X260
- 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 SI100X260
The AirTAC SI100X260 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 260mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X260, a direct upgrade retaining the exact same mounting interface, output force, and dimensions.
The SAI100X260 features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Because this specific SI SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor.
Airtac SI100 Standard Cylinder SI100X260 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X260 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X260 |
| Bore size | Ø100 mm |
| Stroke | 260 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 SAI100X260 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 SAI100X260 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 SI100X260
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×260 | 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 SI100X260 Is Used
Heavy-Duty Pressing
Applies up to 7068 N of thrust at 0.9 MPa for seating bearings or forming light components in automated machinery.
Pallet Diversion
Drives robust routing arms or stop gates on heavy material handling lines, utilizing the 260mm stroke to clear large loads.
Replacing the Airtac SI100 Standard Cylinder SI100X260 with the SAI100X260
To replace the SI100X260, order the SAI100X260. Confirm your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port thread (PT, G or NPT), and the 260mm stroke. If you need position sensing, select the SAI100X260S variant with a magnet, as this no-S model cannot take a switch. Sizing both ways: the 100mm bore gives 3927 N push at 0.5 MPa; dropping to an 80mm bore yields 2513 N, while increasing pressure to 0.7 MPa provides 5497 N. For load holding on air loss, note that a plain cylinder drifts and the cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variants. At 260mm stroke, ensure guide alignment to prevent rod-bending side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X260
- ✓ 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 SI100X260 FAQ
Yes, the SI100X260 is discontinued. The direct replacement is the AirTAC SAI100X260. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 260mm stroke, G1/2 port, and mounting fixtures.
The G1/2 port feeds a 25mm piston rod. At 0.5 MPa it generates 3927 N push and 3681 N pull. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X260
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X260 replacement — usually within 7-8 hours.