This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X315, 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 SI32X315
The AirTAC SI32 Standard Air Cylinder SI32X315 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 315mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X315, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke315 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X315
- 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 SI32X315
The AirTAC SI32X315 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 315 mm stroke. Delivering 402 N push force at 0.5 MPa via a G1/8 port, its direct replacement is the SAI32X315, which shares identical mounting, output and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. For sensing, note this specific SKU lacks a magnet and cannot accept a CS1-B/DS1-B switch.
Airtac SI32 Standard Air Cylinder SI32X315 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X315 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X315 |
| Bore size | Ø32 mm |
| Stroke | 315 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 SAI32X315 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 SAI32X315 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 SI32X315
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×315 | 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 SI32X315 Is Used
Compact Part Ejection
Uses the 402 N push force to eject small machined components from a fixture over the 315 mm travel distance.
Light Package Routing
Diverts lightweight boxes on a line, where the 20 kg vertical lift capacity handles transfers without bulk.
Small Pallet Stops
Acts as a pneumatic stop for low-profile carts, relying on the G1/8 port and ISO 15552 mounts for easy retrofitting.
Replacing the Airtac SI32 Standard Air Cylinder SI32X315 with the SAI32X315
To replace the SI32X315, order the SAI32X315 ensuring the ISO 15552 interface, 32 mm bore, 315 mm stroke, G1/8 port and mounting accessories match. Because this SKU has no -S magnet, it cannot support position sensing; choose a magnet-equipped SAI if switches are needed. At 0.5 MPa it yields 402 N push and 345 N pull; sizing down to a 25 mm bore loses significant force, while a 40 mm bore offers 628 N. For the 315 mm stroke, use external guides to prevent rod bending and side-load wear. Remember the cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X315
- ✓ 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 SI32X315 FAQ
Yes, the SI32X315 is discontinued. The direct replacement is the SAI32X315, offering the same ISO 15552 mounting interface, 32 mm bore, 315 mm stroke, force and G1/8 port.
It features a G1/8 port and provides 402 N push / 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa.
Request a Quote for the SAI32X315
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X315 replacement — usually within 7-8 hours.