This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX30, 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 SI100AX30
The AirTAC Airtac SI100 Standard Cylinder SI100AX30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 30mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke30 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX30
- 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 SI100AX30
The AirTAC SI100AX30 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 30 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. The direct replacement is the SAI100AX30, retaining the exact interface, force, and M20x1.5 rod thread.
This SKU uses a SUS420J2 stainless rod and lacks a magnet, so it cannot accept a sensor. The SAI upgrade features two Y-shaped piston seals for low start-up pressure.
Airtac SI100 Standard Cylinder SI100AX30 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX30 |
| Bore size | Ø100 mm |
| Stroke | 30 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 SAI100AX30 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 SAI100AX30 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 SI100AX30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×30 | 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 SI100AX30 Is Used
High-Force Clamping
Secures heavy steel plates in machining fixtures using 3927 N of push force at 0.5 MPa.
Short-Stroke Pressing
Performs compact 30 mm stamping and seating operations where a robust 100 mm bore is required.
Stainless Rod Actuation
Drives mechanisms in mildly corrosive environments using the SUS420J2 piston rod material.
Replacing the Airtac SI100 Standard Cylinder SI100AX30 with the SAI100AX30
To replace the SI100AX30, order the SAI100AX30. Verify the ISO 15552 mounting interface, the 100 mm bore, the 30 mm stroke, and the G1/2 port. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; if position detection is needed, select an SAI variant with a magnet. The SUS420J2 stainless rod is standard here; confirm if you need the carbon steel or SUS304 option. For sizing, the 80 mm bore offers 2513 N push at 0.5 MPa, while the 125 mm bore provides 6136 N. Note that a plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX30
- ✓ 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 SI100AX30 FAQ
Yes, the SI100AX30 is discontinued. The direct replacement is the SAI100AX30. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 30 mm stroke, G1/2 port, and mounting interface.
It features a G1/2 port and M20x1.5 rod thread. Force output is 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 max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX30
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX30 replacement — usually within 7-8 hours.