This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X175, 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 SI32X175
The AirTAC SI32 Standard Air Cylinder SI32X175 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 SAI32X175, 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 → SAI32X175
- 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 SI32X175
The AirTAC SI32X175 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 175mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X175. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force and porting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnet SKU cannot accept a sensor; the SI family used CS1-B/DS1-B switches. For high heat, Viton H seals raise the limit to 150C.
Airtac SI32 Standard Air Cylinder SI32X175 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X175 |
| 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 SAI32X175 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 SAI32X175 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 SI32X175
| 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 SI32X175 Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight molded parts out of an extrusion die onto a downstream conveyor.
Compact Clamping
Ideal for securing thin electronic housings during ultrasonic welding, where the 32mm profile barrel saves valuable machine space.
Package Diverting
Provides the 175mm stroke needed to actuate a routing flap, diverting small cartons on a packaging line at speeds up to 800mm/s.
Replacing the Airtac SI32 Standard Air Cylinder SI32X175 with the SAI32X175
To replace the SI32X175, order the SAI32X175. Confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 port thread (PT/G/NPT), and the M10x1.25 rod-end thread. Because this specific SKU lacks the -S magnet, it cannot accept position sensors. If you need to hold a load vertically without live air, note that the air cushion only decelerates; you must use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. For the 175mm stroke, guide external rods to prevent side-load bending. Sizing options: step down to a smaller bore for less force, or step up to a 40mm bore (628N push @0.5MPa) for higher thrust.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X175
- ✓ 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 SI32X175 FAQ
Yes, the AirTAC SI32X175 is discontinued. The direct replacement is the SAI32X175. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 175mm stroke, G1/8 port, output force and mounting interface, so it fits existing fixtures perfectly.
The 32mm bore uses a G1/8 port. Theoretical forces are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a maximum force of 82kgf at 1.0MPa. It operates at 30-800mm/s.
Request a Quote for the SAI32X175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X175 replacement — usually within 7-8 hours.