This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX105S, 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 SI100AX105S
The AirTAC Airtac SI100 Standard Cylinder SI100AX105S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 105mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX105S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke105 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX105S
- 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 SI100AX105S
The AirTAC SI100AX105S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 105mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. This specific unit features a SUS420J2 stainless steel rod (-A) and a piston magnet (-S) for legacy CS1-B/DS1-B sensors.
The direct replacement is the SAI100AX105S. It shares identical ISO 15552 mounting dimensions, stroke, and output force, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Airtac SI100 Standard Cylinder SI100AX105S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX105S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX105S |
| Bore size | Ø100 mm |
| Stroke | 105 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 SAI100AX105S 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 SAI100AX105S 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 SI100AX105S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×105 | 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 SI100AX105S Is Used
Heavy-Duty Pressing
Applies up to 7068 N of push force at 0.9 MPa for seating bearings or forming light components in automated machinery.
Product Diversion
Executes 105mm strokes to push heavy goods between conveyor lanes using the SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI100 Standard Cylinder SI100AX105S with the SAI100AX105S
To replace this SI100AX105S, order the SAI100AX105S and confirm the ISO 15552 interface, 105mm stroke, G1/2 port, and mounting accessory match your fixture. The -S magnet enables current AirTAC switches, while the -A rod specifies SUS420J2 stainless steel over standard carbon steel. Sizing both ways: this 100mm bore yields 3927 N at 0.5 MPa; dropping to an 80mm bore gives 2513 N, while increasing pressure to 0.7 MPa yields 5497 N. Remember, a plain cylinder drifts without live air—the cushion only decelerates. For load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX105S
- ✓ 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 SI100AX105S FAQ
Yes, the SI100AX105S is discontinued. The direct replacement is the SAI100AX105S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 105mm stroke, G1/2 port, and mounting interface, but features an upgraded piston seal.
It uses a G1/2 air port. At 0.5 MPa it pushes 3927 N and pulls 3681 N. 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 SAI100AX105S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX105S replacement — usually within 7-8 hours.