This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1200, 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 SI100X1200
The AirTAC Airtac SI100 Standard Cylinder SI100X1200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1200, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1200
- 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 SI100X1200
The AirTAC SI100X1200 is a discontinued double-acting ISO 15552 profile cylinder, delivering 3927 N push force at 0.5 MPa through its 100 mm bore and 1200 mm stroke. The direct replacement is the SAI100X1200, retaining the exact G1/2 port, M20x1.5 rod thread, and mounting interface. This specific SKU lacks the -S magnet, so it cannot accept position sensors.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For applications needing load holding on air loss, the SAI family adds the SAIL air-released lock and BSAI clamp-lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X1200 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1200 |
| Bore size | Ø100 mm |
| Stroke | 1200 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 SAI100X1200 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 SAI100X1200 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 SI100X1200
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1200 | 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 SI100X1200 Is Used
Long-Stroke Material Transfer
Drives heavy pallets across 1200 mm automated conveyor lines where the 3927 N push force easily overcomes rolling friction.
Elevator Lowering Stage
Lowers 200 kg vertical loads in packaging machinery, relying on adjustable air cushions to decelerate at the stroke end.
Large Press Demolding
Ejects molded components from industrial presses, utilizing the 100 mm bore's robust 801 kgf maximum theoretical output.
Replacing the Airtac SI100 Standard Cylinder SI100X1200 with the SAI100X1200
To replace the SI100X1200, order the SAI100X1200 and confirm the ISO 15552 mounting accessory (LB, FA, CA, TC, etc.), G1/2 port thread (PT/G/NPT), and 1200 mm stroke. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, specify an SAI100X1200S. Sizing both ways: the 100 mm bore yields 3927 N push at 0.5 MPa, while the neighboring 80 mm bore yields 2513 N. At 1200 mm, this long stroke demands external guides to prevent rod bending and side-load damage. For load holding, note that a plain cylinder drifts without live air; use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1200
- ✓ 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 SI100X1200 FAQ
Yes, the AirTAC SI100X1200 is discontinued. The direct replacement is the SAI100X1200. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 1200 mm stroke, G1/2 port, and mounting fixtures, but features an upgraded piston seal.
The G1/2 port is fixed by the 100 mm bore. At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1200
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1200 replacement — usually within 7-8 hours.