This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X80SLB, 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 SI32X80SLB 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 SAI32X80SLB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X80SLB 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 it with the SAI32X80SLB, a direct replacement retaining the exact bore, stroke, force, port and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI lacked.
| Model | Airtac SI32 Standard Air Cylinder SI32X80SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X80SLB |
| 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 SAI32X80SLB 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 SAI32X80SLB 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).
Ideal for pushing lightweight machined components out of an ISO 15552 fixture using 402 N of thrust at 0.5 MPa.
The 80 mm stroke actuates a diverter arm on a packaging line, moving small cartons with a 20 kg vertical lift capacity.
Provides reliable clamping force for holding thin workpieces in automated assembly cells using the LB foot mount.
To replace this SI32X80SLB, order the SAI32X80SLB. Confirm the ISO 15552 LB foot mount interface, 32 mm bore, 80 mm stroke, G1/8 port, and the -S magnet for CS1-B/DS1-B switches. Sizing both ways: a neighbouring 40 mm bore offers 628 N push at 0.5 MPa, while dropping to a smaller bore reduces force. This plain cylinder does not hold load on air loss; the cushion only decelerates. For held loads, use an external pilot check valve or the SAIL/BSAI lock variants. Rod material options include carbon steel, SUS420J2 (A) or SUS304 (B).
Replacement checklist
Yes, the SI32X80SLB is discontinued. The direct replacement is the SAI32X80SLB. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 80 mm stroke, force, G1/8 port and LB mounting.
The G1/8 port bore delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. It operates at 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X80SLB replacement — usually within 7-8 hours.