This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X120S, 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 SI32X120S
The AirTAC SI32 Standard Air Cylinder SI32X120S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 120mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X120S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X120S
- 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 SI32X120S
The AirTAC SI32X120S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 120mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is directly replaced by the SAI32X120S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI32X120S includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family expands options with SAIL, SAIF and BSAI variants.
Airtac SI32 Standard Air Cylinder SI32X120S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X120S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X120S |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAI32X120S 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 SAI32X120S 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 SI32X120S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SI32X120S Is Used
Small Part Ejection
Ideal for pushing lightweight finished components out of machining centers using its 402N push force at 0.5 MPa.
Package Diverting
Sort or divert small packages on a conveyor line where a compact 32mm bore and 120mm stroke provide precise routing.
Replacing the Airtac SI32 Standard Air Cylinder SI32X120S with the SAI32X120S
To replace the SI32X120S, order the SAI32X120S keeping the same 32mm bore, 120mm stroke, G1/8 port, M10x1.25 rod thread and ISO 15552 mounting. Confirm your thread standard (PT/G/NPT) and mounting accessory (LB, FA, TC, etc.). The built-in magnet (-S) means you can use CS1-B/DS1-B switches, though the SAI replacement uses current AirTAC sensors. If you need more force, neighboring bores like 40mm (628N push @0.5MPa) offer a step up. Note that a plain cylinder drifts on air loss; for load holding, consider an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X120S
- ✓ 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 SI32X120S FAQ
Yes, the SI32X120S is discontinued. The direct replacement is the AirTAC SAI32X120S. It shares the same ISO 15552 mounting interface, 32mm bore, 120mm stroke, output force, G1/8 port and mounting accessories, fitting directly into existing fixtures.
This double-acting cylinder features a G1/8 air port and M10x1.25 rod thread. It delivers a push force of 402N and pull of 345N at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X120S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X120S replacement — usually within 7-8 hours.