This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X212, 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 SI100X212
The AirTAC SI100 Standard Cylinder SI100X212 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 212mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X212, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke212 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X212
- 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 SI100X212
The AirTAC SI100X212 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 212mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa, utilizing a G1/2 port and M20x1.5 rod thread. Because this exact stroke exceeds the 200mm standard increment, it is classified as a nonstandard stroke.
You must order the SAI100X212 as the direct replacement. It shares the exact ISO 15552 mounting interface, output force, and port size. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks the -S magnet and cannot take a CS1-B/DS1-B sensor.
Airtac SI100 Standard Cylinder SI100X212 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X212 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X212 |
| Bore size | Ø100 mm |
| Stroke | 212 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 SAI100X212 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 SAI100X212 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 SI100X212
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×212 | 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 SI100X212 Is Used
Heavy Press Clamping
Ideal for securing heavy fabrication components during machining, utilizing the 5497N push force at 0.7MPa to hold parts rigidly against the fixture.
Pallet Lift Gates
Provides the robust vertical actuation needed for automated pallet gates, safely moving loads up to the computed 200kg vertical lift limit.
Large Component Ejection
Ejects molded or stamped products from heavy machinery, relying on the 3681N pull force at 0.5MPa to retract the tooling reliably.
Replacing the Airtac SI100 Standard Cylinder SI100X212 with the SAI100X212
To replace the discontinued SI100X212, order the SAI100X212. Confirm the ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/2 port, and the 212mm nonstandard stroke. Since this SKU lacks the -S magnet, it cannot accept position sensors; if sensing is needed, specify an SAI100X212S. Sizing both ways: the neighboring 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore yields 6136N. Because the 212mm stroke exceeds 300mm? No, but at 212mm you should still ensure adequate guide support to prevent rod bending under side loads. For load holding on air loss, note that a plain cylinder drifts; the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X212
- ✓ 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 SI100X212 FAQ
Yes, the AirTAC SI100X212 is discontinued. The direct replacement is the SAI100X212. It is dimensionally interchangeable per ISO 15552, maintaining the same 100mm bore, 212mm stroke, G1/2 port, and mounting accessories.
The G1/2 port bore delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X212
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X212 replacement — usually within 7-8 hours.