This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X325, 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 SI32X325
The AirTAC SI32 Standard Air Cylinder SI32X325 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 325mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X325, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X325
- 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 SI32X325
The AirTAC SI32X325 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 325mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32X325, a direct sharing the exact mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For this non-magnet SKU, position sensing is impossible. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32X325 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X325 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X325 |
| Bore size | Ø32 mm |
| Stroke | 325 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 SAI32X325 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 SAI32X325 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 SI32X325
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 SI32X325 Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight molded components out of a machining fixture over the 325 mm travel distance.
Package Diverting
Extends 325 mm across a belt to deflect small cartons to a secondary packaging lane, operating efficiently within the 30-800 mm/s speed range.
Pneumatic Gates
Actuates access doors or flow controls on automated machinery where a compact 32 mm ISO 15552 footprint and G1/8 porting are required.
Replacing the Airtac SI32 Standard Air Cylinder SI32X325 with the SAI32X325
To replace the SI32X325, order the SAI32X325. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), the G1/8 port, and the 325mm stroke. Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors; if sensing is needed, specify an SAI32X325S. For the 325mm stroke, use an external guide to prevent rod bending and side-load wear. Plain cylinders drift without live air; for load holding on pressure loss, specify the SAIL lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X325
- ✓ 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 SI32X325 FAQ
Yes, the SI32X325 is discontinued. The direct replacement is the AirTAC SAI32X325. It shares the identical ISO 15552 mounting interface, 32mm bore, 325mm stroke, force, and G1/8 port, fitting directly into existing fixtures.
The 32mm bore uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Request a Quote for the SAI32X325
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X325 replacement — usually within 7-8 hours.