This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X80LB, 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 SI32 Standard Air Cylinder SI32X80LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X80LB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X80LB is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and LB foot mount. It delivers 402 N push force at 0.5 MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X80LB, a direct upgrade sharing the exact same ISO 15552 mounting interface, bore, stroke, output force, and LB accessory.
The SAI upgrade features a modernized piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and therefore cannot accept position sensors like the legacy CS1-B or DS1-B switches.
| Model | Airtac SI32 Standard Air Cylinder SI32X80LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X80LB |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32X80LB 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X80LB 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). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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).
Provides reliable 402 N push force at 0.5 MPa to eject small machined components from a fixture.
Actuates a short 80 mm stroke diverting arm to route lightweight boxes on a packaging line.
Secures light workpieces in automated assembly cells using the fixed LB foot mounting interface.
To replace the discontinued SI32X80LB, order the SAI32X80LB. Verify your ISO 15552 interface dimensions, 32 mm bore, 80 mm stroke, G1/8 port, and LB foot mounting accessory. Because this SKU has no magnet, it cannot support sensors; if position detection is needed, select an SAI32X80LBS. If downsizing, a 32 mm bore yields 402 N push at 0.5 MPa. If you need to hold a load vertically without live air, note that the air cushion only decelerates the piston and does not lock it. You must use an external pilot check valve, a rod lock, or switch to the SAIL (air-released lock) or BSAI (clamp-lock) variants.
Replacement checklist
Yes, the SI32X80LB is discontinued. The direct replacement is the AirTAC SAI32X80LB. It shares the identical ISO 15552 mounting interface, 32 mm bore, 80 mm stroke, output force, G1/8 port, and LB foot mount, so it fits directly into existing fixtures.
The G1/8 port feeds a 12 mm rod. Force output is 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X80LB replacement — usually within 7-8 hours.