This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X100CA, 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 SI100X100CA
The AirTAC Airtac SI100 Standard Cylinder SI100X100CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X100CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X100CA
- 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 SI100X100CA
The AirTAC SI100X100CA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 100mm stroke, delivering 3927N push force at 0.5MPa via a G1/2 port. AirTAC replaced it with the SAI100X100CA direct replacement, which shares 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, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked. This SKU lacks a magnet, so it cannot take a CS1-B/DS1-B sensor.
Airtac SI100 Standard Cylinder SI100X100CA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X100CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X100CA |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAI100X100CA 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 SAI100X100CA 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 SI100X100CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | 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 SI100X100CA Is Used
Heavy Press Clamping
Secures large steel plates in machining fixtures, utilising the 3927N push force at 0.5MPa to hold parts rigidly against cutting vibration.
Pallet Lift Gates
Actuates heavy loading dock gates, where the 100mm bore provides the high torque necessary to pivot counterweighted assemblies smoothly.
Logistics Diverters
Drives robust sorting arms on high-throughput packaging lines, easily handling the impact of redirecting heavy cartons at speed.
Replacing the Airtac SI100 Standard Cylinder SI100X100CA with the SAI100X100CA
To replace the SI100X100CA, order the SAI100X100CA and confirm the ISO 15552 CA clevis interface, 100mm stroke, G1/2 port (PT/G/NPT), and M20x1.5 rod. This non-magnet SKU cannot support sensing; add an -S suffix on the SAI if you need CS1-B/DS1-B switches. For sizing, the 100mm bore yields 3927N push at 0.5MPa; a neighbouring 80mm bore gives 2513N, while a 125mm bore provides 6136N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads. The 100mm stroke is short, but for any stroke >=300mm add external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X100CA
- ✓ 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 SI100X100CA FAQ
Yes, the SI100X100CA is discontinued. The direct replacement is the AirTAC SAI100X100CA. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 100mm stroke, CA clevis mount, G1/2 port, and 3927N output force.
The G1/2 port bore delivers a push of 3927N and a pull of 3681N at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a maximum theoretical force of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X100CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X100CA replacement — usually within 7-8 hours.