This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X175S, 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 SI32X175S
The AirTAC SI32 Standard Air Cylinder SI32X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 175mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X175S
- 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 SI32X175S
The AirTAC SI32X175S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32 mm bore and 175 mm stroke. Delivering 402 N push force at 0.5 MPa through a G1/8 port, it is replaced by the SAI32X175S. This direct upgrade matches the original mounting interface, bore, stroke, force and port size exactly.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family introduces SAIL, SAIF and BSAI lock variants previously unavailable.
Airtac SI32 Standard Air Cylinder SI32X175S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X175S |
| Bore size | Ø32 mm |
| Stroke | 175 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 SAI32X175S 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 SAI32X175S 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 SI32X175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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 SI32X175S Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight machined components out of a fixture.
Package Diverting
Actuates a routing gate along a packaging line, benefiting from the 30-800 mm/s speed range.
Clamp Actuation
Secures small workpieces during secondary machining operations within a compact 32 mm bore envelope.
Replacing the Airtac SI32 Standard Air Cylinder SI32X175S with the SAI32X175S
To replace the SI32X175S, order the SAI32X175S. Confirm the ISO 15552 mounting interface, the 32 mm bore, 175 mm stroke, G1/8 port (PT/G/NPT thread options) and your mounting accessory (LB, FA, TC, etc.). The -S suffix means a piston magnet is present for CS1-B/DS1-B switches. Sizing both ways: a 40 mm bore offers 628 N push at 0.5 MPa if more force is needed, while dropping pressure to 0.5 MPa yields 402 N. Note that a plain cylinder drifts on air loss as the cushion only decelerates; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 175 mm stroke, side-load and rod-bending risks are minimal, but ensure proper alignment to prevent seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X175S
- ✓ 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 SI32X175S FAQ
Yes, the SI32X175S is discontinued. The direct replacement is the SAI32X175S. It provides a true ISO 15552 mounting-interface match, keeping the same 32 mm bore, 175 mm stroke, output force and G1/8 port so it drops directly into existing fixtures.
The G1/8 port bore delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa. At 0.7 MPa push is 563 N, and at 0.9 MPa it is 724 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X175S replacement — usually within 7-8 hours.