This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X220STC, 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 SI100X220STC
The AirTAC Airtac SI100 Standard Cylinder SI100X220STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 220mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X220STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X220STC
- 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 SI100X220STC
The AirTAC SI100X220STC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 220mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa. The direct replacement is the SAI100X220STC, retaining the same G1/2 port, M20x1.5 rod thread, TC trunnion mount, and ISO 15552 interface.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X220STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X220STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X220STC |
| Bore size | Ø100 mm |
| Stroke | 220 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 SAI100X220STC 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 SAI100X220STC 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 SI100X220STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×220 | 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 SI100X220STC Is Used
Heavy Press Clamping
Ideal for securing heavy fabrication parts during machining, utilizing the 3927 N push force at 0.5 MPa to hold components firmly against the fixture bed.
Pallet Lift Stations
Drives robust vertical lifting arms in automated storage systems, where the 200 kg safe vertical lift capacity handles loaded pallets reliably.
Bulk Material Diverting
Powers heavy-duty diverter gates on high-throughput packaging lines, using the TC trunnion mount to handle pivot loads and 220mm stroke to clear the belt path.
Replacing the Airtac SI100 Standard Cylinder SI100X220STC with the SAI100X220STC
To replace the SI100X220STC, order the SAI100X220STC. Verify the ISO 15552 TC trunnion interface, 100mm bore, 220mm stroke, G1/2 port, and the -S magnet. If you need more force, the 125mm bore offers 6136 N push at 0.5 MPa; if less is acceptable, the 80mm bore provides 2513 N. 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 variant. At 220mm stroke, guide rods are advised to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X220STC
- ✓ 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 SI100X220STC FAQ
Yes, the SI100X220STC is discontinued. The direct replacement is the SAI100X220STC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 220mm stroke, G1/2 port, TC mount, and output force, so it fits existing fixtures directly.
The 100mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. It operates at 0.15-1.0 MPa, runs at 30-800 mm/s, and has a G1/2 port with a 36mm adjustable air cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X220STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X220STC replacement — usually within 7-8 hours.