This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X90STC, 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.
Airtac SI32 Standard Air Cylinder SI32X90STC
The AirTAC SI32 Standard Air Cylinder SI32X90STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 90mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X90STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X90STC
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32X90STC
The AirTAC SI32X90STC is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 90mm stroke, and a TC trunnion mount. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X90STC. This direct successor shares the exact ISO 15552 mounting interface, bore, stroke, and force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI32 Standard Air Cylinder SI32X90STC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X90STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X90STC |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAI32X90STC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X90STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X90STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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).
Where the Airtac SI32 Standard Air Cylinder SI32X90STC Is Used
Small Part Clamping
Ideal for holding light machined components during drilling or milling, utilizing the 402N push force at 0.5MPa for secure, stable fixturing.
Package Diverting
Provides reliable actuation for lightweight sorting gates on assembly lines, where the 90mm stroke and 30-800mm/s speed range ensure rapid transitions.
Electronics Assembly
Drives precise pick-and-place movements for PCB handling, taking advantage of the 12mm rod and compact 32mm profile barrel to fit tight automation cells.
Replacing the Airtac SI32 Standard Air Cylinder SI32X90STC with the SAI32X90STC
To replace the SI32X90STC, order the SAI32X90STC. Verify the ISO 15552 TC trunnion mounting, 32mm bore, 90mm stroke, G1/8 port, and the -S magnet for CS1-B/DS1-B switches. If you need more force, the neighbouring 40mm bore yields 628N push at 0.5MPa; if less is acceptable, check smaller profiles. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The 90mm stroke is well under the 1000mm maximum, avoiding rod-bending side-load concerns.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X90STC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X90STC FAQ
Yes, the AirTAC SI32X90STC is discontinued. The direct replacement is the SAI32X90STC. It features the same ISO 15552 mounting interface, 32mm bore, 90mm stroke, output force, and G1/8 port, fitting directly into existing fixtures.
This 32mm bore double-acting cylinder uses a G1/8 air port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X90STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X90STC replacement — usually within 7-8 hours.