This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1000TC, 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 SI80 Standard Air Cylinder SI80X1000TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1000TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X1000TC is a discontinued double-acting ISO 15552 profile cylinder with a 1000 mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is superseded by the direct replacement SAI80X1000TC, which shares the exact TC trunnion mounting, bore, and cushion dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors.
| Model | Airtac SI80 Standard Air Cylinder SI80X1000TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1000TC |
| Bore size | Ø80 mm |
| Stroke | 1000 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 SAI80X1000TC 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X1000TC 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). |
|---|---|
| 80 | Bore size in mm. |
| ×1000 | 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 workpieces between machining stations over a 1000 mm span, utilizing the 2513 N thrust at 0.5 MPa.
Indexes heavy pallets laterally via the TC trunnion mount, requiring external guides to manage the extended rod length.
To replace the SI80X1000TC, order the SAI80X1000TC. It drops into existing fixtures via the exact ISO 15552 TC trunnion interface, matching the 80 mm bore, 1000 mm stroke, G3/8 port, and M20x1.5 rod thread. For sizing, neighboring bores offer 1767 N (63mm) or 3927 N (100mm) push at 0.5 MPa. Because this is a 1000 mm stroke, use an external guide to prevent rod bending and side-load wear. This non-magnet SKU cannot take a sensor; for position feedback, select an SAI with the S suffix. 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 to hold loads.
Replacement checklist
Yes, the SI80X1000TC is discontinued. The direct replacement is the SAI80X1000TC, which matches the ISO 15552 TC mounting interface, 80 mm bore, 1000 mm stroke, and G3/8 port.
The G3/8 port bore delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a 513 kgf maximum at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1000TC replacement — usually within 7-8 hours.