This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X60TC, 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 SI80X60TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X60TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X60TC is a discontinued double-acting ISO 15552 profile cylinder with a 60 mm stroke. Delivering 2513 N push force at 0.5 MPa through a G3/8 port, it is directly replaced by the SAI80X60TC. This direct upgrade shares the exact TC trunnion mounting, bore, and output force, fitting existing fixtures seamlessly.
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 a magnet (-S) and cannot accept a CS1-B/DS1-B sensor.
| Model | Airtac SI80 Standard Air Cylinder SI80X60TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X60TC |
| Bore size | Ø80 mm |
| Stroke | 60 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 SAI80X60TC 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 SAI80X60TC 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. |
| ×60 | 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).
Ideal for securing heavy workpieces in machining fixtures, utilizing the 2513 N push force at 0.5 MPa to hold components firmly during milling or drilling operations.
Acts as a robust routing gate on heavy-duty material handling lines, using the 60 mm stroke to push pallets onto auxiliary tracks without requiring complex linkages.
Provides the necessary thrust to fold heavy corrugated cardboard flaps in automated packaging lines, where the 80 mm bore ensures consistent pressure across the 60 mm travel.
To replace the SI80X60TC, order the SAI80X60TC and confirm the ISO 15552 TC trunnion mount, 80 mm bore, 60 mm stroke, and G3/8 port. The SAI family also adds SAIL, SAIF, and BSAI variants the SI lacked. If sizing alternatives, neighboring bores (63 mm or 100 mm) offer different force classes (1559 N or 3927 N push at 0.5 MPa). Because this plain cylinder lacks a magnet, it cannot take a sensor. Remember, the air cushion only decelerates; it does not hold the load on air loss. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80X60TC is discontinued. The direct replacement is the SAI80X60TC. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 60 mm stroke, G3/8 port, TC trunnion mount, and output force. You simply order the SAI equivalent.
The 80 mm bore features a G3/8 air port and a 25 mm piston rod. It 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 theoretical max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X60TC replacement — usually within 7-8 hours.