This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX475, 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 SI100AX475
The AirTAC SI100 Standard Cylinder SI100AX475 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 475mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX475, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke475 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX475
- 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 SI100AX475
The AirTAC SI100AX475 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 475 mm stroke. It delivers 3927 N push force at 0.5 MPa and features a SUS420J2 stainless steel rod. The direct replacement is the SAI100AX475, matching the exact ISO 15552 mounting interface, stroke, G1/2 port and 801 kgf maximum force.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI SKU lacks a magnet (-S), it cannot accept position switches.
Airtac SI100 Standard Cylinder SI100AX475 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX475 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX475 |
| Bore size | Ø100 mm |
| Stroke | 475 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 SAI100AX475 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 SAI100AX475 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 SI100AX475
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×475 | 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 SI100AX475 Is Used
Heavy Pressing
Drives large stamping or forming fixtures utilizing 5497 N of thrust at 0.7 MPa to seat heavy components securely.
Pallet Diverting
Actuates robust routing gates on high-capacity material handling lines, moving substantial loads across the 475 mm travel.
Replacing the Airtac SI100 Standard Cylinder SI100AX475 with the SAI100AX475
To replace the SI100AX475, order the SAI100AX475 keeping the identical 100 mm bore, 475 mm stroke, G1/2 port, M20x1.5 thread and ISO 15552 mounting. You can size down to an 80 mm bore (2513 N @0.5 MPa) or up to 125 mm (6136 N) if force needs change. Note this SKU has no magnet, so it cannot support CS1-B/DS1-B sensors. Because it is a plain cylinder, it will not hold a load without air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, the 475 mm stroke demands external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX475
- ✓ 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 SI100AX475 FAQ
Yes, the SI100AX475 is discontinued. The direct replacement is the SAI100AX475. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 475 mm stroke, G1/2 port and mounting interface.
This double-acting cylinder has a G1/2 port. It generates 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX475
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX475 replacement — usually within 7-8 hours.