This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X315S, 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 SI32X315S
The AirTAC SI32 Standard Air Cylinder SI32X315S 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 SAI32X315S, 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 → SAI32X315S
- 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 SI32X315S
The AirTAC SI32X315S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 315mm stroke. Delivering 402N push at 0.5MPa via a G1/8 port, it is replaced by the SAI32X315S. This direct upgrade shares identical mounting, force, and stroke. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure.
The SAI family expands options with SAIL, SAIF, and BSAI variants absent in the SI line. Your SI32X315S uses a CS1-B/DS1-B sensor via its magnet; the SAI takes current AirTAC switches. For high heat, Viton H seals raise limits to 150C. Remember, a 315mm stroke needs external guides to prevent rod bending.
Airtac SI32 Standard Air Cylinder SI32X315S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X315S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X315S |
| 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 SAI32X315S 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 SAI32X315S 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 SI32X315S
| 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 SI32X315S Is Used
Small Parts Ejection
Uses the 402N push force to eject small molded components from a fixture reliably.
Package Diversion
Extends 315mm to push lightweight cartons off a main conveyor belt line.
Material Sorting
Sorts small bins by pushing items down secondary chutes in distribution hubs.
Replacing the Airtac SI32 Standard Air Cylinder SI32X315S with the SAI32X315S
To replace the SI32X315S, order the SAI32X315S. Verify the ISO 15552 interface, 32mm bore, 315mm stroke, G1/8 port, and mounting. The S magnet enables current AirTAC switches. At 0.5MPa it yields 402N push and 345N pull; if undersized, a 40mm bore gives 628N. For 315mm strokes, use external guides to prevent rod bending. A plain cylinder drifts without air; for load holding use the SAIL lock, BSAI clamp-lock, or a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X315S
- ✓ 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 SI32X315S FAQ
Yes, the SI32X315S is discontinued. The direct replacement is the SAI32X315S, which shares the same ISO 15552 mounting interface, 32mm bore, 315mm stroke, G1/8 port, and output force.
It features a G1/8 port. Force ratings are 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X315S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X315S replacement — usually within 7-8 hours.