This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X20, 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 SI32X20
The AirTAC SI32 Standard Air Cylinder SI32X20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 20mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X20
- 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 SI32X20
The AirTAC SI32X20 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 20mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32X20, matching the interface, bore, stroke, force, port and mounting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI SKU lacks the -S magnet, it cannot accept a sensor.
Airtac SI32 Standard Air Cylinder SI32X20 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X20 |
| Bore size | Ø32 mm |
| Stroke | 20 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 SAI32X20 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 SAI32X20 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 SI32X20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 SI32X20 Is Used
Compact Part Ejection
Uses the short 20mm stroke and 402N push force to eject small machined components from a fixture quickly.
Small Gate Diverting
Pivots lightweight pneumatic gates or diverters on packaging lines using its 345N pull force at 0.5MPa.
Replacing the Airtac SI32 Standard Air Cylinder SI32X20 with the SAI32X20
To replace this SI cylinder, order the SAI32X20. Confirm the ISO 15552 mounting interface, 20mm stroke, M10x1.25 rod thread and G1/8 port. Since this SKU has no -S magnet, it cannot take a CS1-B/DS1-B sensor; order a magnet-equipped SAI if position sensing is needed. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. To size both ways: a 40mm bore offers 628N [email protected], while dropping to a smaller bore reduces force.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X20
- ✓ 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 SI32X20 FAQ
Yes, the SI32X20 is discontinued. The direct replacement is the SAI32X20. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 20mm stroke, output force, G1/8 port and mounting accessories.
The G1/8 port bore delivers a push 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.
Request a Quote for the SAI32X20
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X20 replacement — usually within 7-8 hours.