This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX5, 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 SI100AX5
The AirTAC Airtac SI100 Standard Cylinder SI100AX5 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 5mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX5, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke5 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX5
- 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 SI100AX5
The AirTAC SI100AX5 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 5mm stroke. Delivering 3927N push at 0.5MPa, it is replaced by the SAI100AX5. This direct successor matches the G1/2 port, M20x1.5 thread and 36mm cushions.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure. The -A rod is SUS420J2 stainless. Without a -S magnet, this SKU cannot take a sensor.
Airtac SI100 Standard Cylinder SI100AX5 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX5 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX5 |
| Bore size | Ø100 mm |
| Stroke | 5 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 SAI100AX5 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 SAI100AX5 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 SI100AX5
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×5 | 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 SI100AX5 Is Used
Short-Stroke Clamping
Ideal for high-force 3927N clamping jigs requiring minimal 5mm travel to secure heavy steel plates during machining.
Riveting Press
Provides a solid 5mm impact stroke for riveting assemblies, utilizing the 100mm bore's 801kgf maximum theoretical output.
Gate Ejection
Handles robust part ejection tasks where a brief 5mm movement and 5497N at 0.7MPa effectively clear heavy components.
Replacing the Airtac SI100 Standard Cylinder SI100AX5 with the SAI100AX5
To replace the SI100AX5, order the SAI100AX5. It drops into existing fixtures via the ISO 15552 interface, keeping the 100mm bore, 5mm stroke, 3927N force and G1/2 port. Choose PT, G or NPT threads. The -A code specifies the SUS420J2 stainless rod; default is carbon steel. Since this SKU lacks -S, it cannot accept CS1-B/DS1-B sensors. A plain cylinder drifts on air loss; for load holding use an external rod lock or the SAIL/BSAI lock variant. For higher force, the 125mm bore offers 6136N at 0.5MPa; for less, the 80mm bore gives 2513N.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX5
- ✓ 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 SI100AX5 FAQ
Yes, the SI100AX5 is discontinued. The direct replacement is the SAI100AX5. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 5mm stroke, 3927N force, G1/2 port and mounting accessories.
It features a G1/2 port. Force output is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N at 0.9MPa, and a maximum theoretical force of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX5
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX5 replacement — usually within 7-8 hours.