This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X180CA, 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 SI100X180CA
The AirTAC Airtac SI100 Standard Cylinder SI100X180CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 180mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X180CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X180CA
- 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 SI100X180CA
The AirTAC SI100X180CA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 180mm stroke. It delivers 3927N push force at 0.5MPa through a G1/2 port. AirTAC replaced it with the SAI100X180CA, a direct sharing the exact CA clevis mount, M20x1.5 rod thread, and 36mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150C.
Airtac SI100 Standard Cylinder SI100X180CA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X180CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X180CA |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAI100X180CA 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 SAI100X180CA 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 SI100X180CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SI100X180CA Is Used
Heavy Press Clamping
Secures large metal workpieces in machining fixtures, utilizing the 3927N push force at 0.5MPa to prevent movement during milling operations.
Pallet Lift Gates
Actuates heavy loading dock gates.
Bulk Package Divert
Drives heavy-duty divert arms on high-throughput packaging lines, moving bulky cartons across belt intersections at 30-800mm/s.
Replacing the Airtac SI100 Standard Cylinder SI100X180CA with the SAI100X180CA
To replace the SI100X180CA, order the SAI100X180CA. Confirm the ISO 15552 CA clevis mounting, G1/2 port, and 180mm stroke. Because this specific SKU has no -S magnet, it cannot accept position sensors. If sizing down, the 80mm bore gives 2513N push at 0.5MPa; if sizing up, the 125mm bore yields 6136N. This double-acting cylinder will drift on air loss, as its cushions only decelerate the load. For holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 180mm, side-load risk is low, but ensure rod alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X180CA
- ✓ 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 SI100X180CA FAQ
Yes, the SI100X180CA is discontinued. The direct replacement is the SAI100X180CA. It shares the identical ISO 15552 CA mounting interface, 100mm bore, 180mm stroke, force, and G1/2 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G1/2 port. The force output is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X180CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X180CA replacement — usually within 7-8 hours.