This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X263S, 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 SI100X263S
The AirTAC Airtac SI100 Standard Cylinder SI100X263S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 263mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X263S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke263 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X263S
- 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 SI100X263S
The AirTAC SI100X263S is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 263 mm stroke. It delivers a push force of 3927 N at 0.5 MPa. AirTAC replaced this legacy unit with the SAI100X263S, a direct upgrade retaining the exact ISO 15552 mounting interface, G1/2 port, and 801 kgf maximum force.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for lower start-up pressure and extended life. The original SI utilized CS1-B/DS1-B sensors via its magnet, while the SAI family supports current AirTAC switches and adds SAIL lock, SAIF valve, and BSAI clamp-lock variants.
Airtac SI100 Standard Cylinder SI100X263S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X263S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X263S |
| Bore size | Ø100 mm |
| Stroke | 263 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 SAI100X263S 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 SAI100X263S 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 SI100X263S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×263 | 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 SI100X263S Is Used
Heavy Press Operations
Drives 3927 N at 0.5 MPa for forming, stamping, and pressing heavy assemblies securely.
Large Package Diversion
Actuates heavy-duty diverters and stops on wide conveyors using its 263 mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X263S with the SAI100X263S
To replace the discontinued SI100X263S, order the SAI100X263S. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), the G1/2 air port, and the M20x1.5 rod thread. Because 263 mm is a nonstandard stroke, confirm the exact stroke requirement before ordering. When sizing, note a 100 mm bore yields 3927 N push at 0.5 MPa; dropping to an 80 mm bore reduces push to 2513 N, while a 125 mm bore increases it to 6136 N. Note that a standard cylinder drifts on air loss—the cushion only decelerates near stroke end. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. With this 263 mm stroke, ensure guide rails carry side loads to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X263S
- ✓ 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 SI100X263S FAQ
Yes, the AirTAC SI100X263S is discontinued. The direct replacement is the SAI100X263S. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 263 mm stroke, G1/2 port, and mounting interface.
The G1/2 port is fixed by the 100 mm bore. It delivers a push of 3927 N and pull of 3681 N at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X263S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X263S replacement — usually within 7-8 hours.