This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X175CA, 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 SI100X175CA
The AirTAC Airtac SI100 Standard Cylinder SI100X175CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 175mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X175CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X175CA
- 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 SI100X175CA
The AirTAC SI100X175CA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 175mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa via a G1/2 port. AirTAC replaced this EOL unit with the SAI100X175CA, a direct sharing the exact CA clevis mounting, M20x1.5 rod thread and 36mm cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Since this SKU lacks the -S magnet, it cannot take a CS1-B/DS1-B sensor. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X175CA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X175CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X175CA |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAI100X175CA 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 SAI100X175CA 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 SI100X175CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SI100X175CA Is Used
Heavy Press Clamping
Applies the 3927N push force at 0.5MPa to secure heavy fabrication materials during machining or welding operations.
Bulk Package Diverters
Drives heavy-duty routing arms on high-throughput packaging lines using the 175mm stroke and CA clevis mounting.
Replacing the Airtac SI100 Standard Cylinder SI100X175CA with the SAI100X175CA
To replace the SI100X175CA, order the SAI100X175CA and confirm the ISO 15552 interface, 100mm bore, 175mm stroke, G1/2 port and CA clevis mount. Because this SKU has no -S magnet, it cannot accept position sensors. Sizing both ways: the neighbouring 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore yields 6136N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Operating speed is 30-800mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X175CA
- ✓ 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 SI100X175CA FAQ
Yes, the SI100X175CA is discontinued. The direct replacement is the SAI100X175CA. It shares the identical ISO 15552 mounting interface, 100mm bore, 175mm stroke, force, G1/2 port and CA clevis, fitting existing fixtures perfectly.
It features a G1/2 port and delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X175CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X175CA replacement — usually within 7-8 hours.