This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X295SN, 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 SI100X295SN
The AirTAC Airtac SI100 Standard Cylinder SI100X295SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 295mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X295SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke295 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X295SN
- 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 SI100X295SN
The AirTAC SI100X295SN is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel, a 295 mm stroke, and a G1/2 air port. Delivering a push force of 3927 N at 0.5 MPa, it is replaced by the SAI100X295SN. This direct successor shares the exact ISO 15552 mounting interface, bore, stroke, output force, port size, and accessories, fitting existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The NBR seals operate from -20 to +70 C, while a Viton H option extends heat resistance to 150 C. Your -S magnet supports legacy CS1-B/DS1-B sensors, and the SAI family adds SAIL, SAIF, and BSAI variants lacking in the SI line.
Airtac SI100 Standard Cylinder SI100X295SN Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X295SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X295SN |
| Bore size | Ø100 mm |
| Stroke | 295 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 SAI100X295SN 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 SAI100X295SN 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 SI100X295SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×295 | 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 SI100X295SN Is Used
Heavy-Duty Pressing
Applies the 3927 N push force at 0.5 MPa for seating bearings and assembling large mechanical components.
Bulk Diversion
Actuates heavy lane guides and sorting gates on high-throughput packaging conveyors.
Replacing the Airtac SI100 Standard Cylinder SI100X295SN with the SAI100X295SN
To replace the discontinued SI100X295SN, order the SAI100X295SN, confirming the ISO 15552 mounting interface, 100 mm bore, 295 mm stroke, G1/2 port, and your specific mounting accessory. The SAI accepts current AirTAC switches for the -S magnet, replacing the legacy CS1-B/DS1-B set. Sizing both ways: a neighboring 80 mm bore yields 2513 N push at 0.5 MPa, whereas stepping up to 125 mm provides 6136 N. At 0.7 MPa this 100 mm bore pushes 5497 N. A plain cylinder does not hold load on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. For any stroke at or above 300 mm, guide the load to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X295SN
- ✓ 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 SI100X295SN FAQ
Yes, the SI100X295SN is discontinued. The direct replacement is the SAI100X295SN. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 295 mm stroke, force, G1/2 port, and mounting interface.
It features a G1/2 air port. Force ratings are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X295SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X295SN replacement — usually within 7-8 hours.