This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1500TC, 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.

The AirTAC SI100 Standard Cylinder SI100X1500TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1500TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X1500TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1500mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X1500TC, a direct upgrade retaining the exact TC trunnion mount, M20x1.5 rod thread, and 36mm cushions.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for lower start-up pressure and extended life. Note this non-magnet SKU cannot accept sensors, and plain cylinders drift without air; explore SAIL or BSAI lock variants for load holding.
| Model | Airtac SI100 Standard Cylinder SI100X1500TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1500TC |
| Bore size | Ø100 mm |
| Stroke | 1500 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 SAI100X1500TC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X1500TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1500 | 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).
Pushes heavy pallets between machining centers over the full 1500mm travel using 3927N thrust at 0.5 MPa.
Actuates large divert arms on high-speed conveyors, relying on the TC trunnion to handle pivot stresses.
To replace the SI100X1500TC, order the SAI100X1500TC to match the ISO 15552 TC trunnion interface, 100mm bore, 1500mm stroke, and G1/2 port. Because this SKU lacks the -S magnet, it cannot support CS1-B/DS1-B sensors; order a magnet-equipped SAI if position detection is required. At 0.5 MPa the 100mm bore yields 3927 N push and 3681 pull; if undersizing, a 80mm bore provides 2513 N push, while a 125mm bore offers 6136 N. The 1500mm stroke demands external guide rails to prevent rod bending and side-load damage. Finally, the standard cushion only decelerates the load; it does not hold position pneumatically. For static holding on air loss, specify a SAIL or BSAI lock variant, or fit an external pilot check valve.
Replacement checklist
Yes, the SI100X1500TC is discontinued. The direct replacement is the SAI100X1500TC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 1500mm stroke, G1/2 port, and TC mounting interface.
The 100mm bore uses a G1/2 port. It generates 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 maximum theoretical force of 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1500TC replacement — usually within 7-8 hours.