This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X680, 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 SI32X680
The AirTAC SI32 Standard Air Cylinder SI32X680 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 680mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X680, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke680 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X680
- 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 SI32X680
The AirTAC SI32X680 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 680 mm stroke, delivering 402 N push force at 0.5 MPa. Because this legacy unit is end-of-life, AirTAC specifies the SAI32X680 as the direct replacement. It shares the same ISO 15552 mounting interface, G1/8 port, M10x1.25 rod thread, and output force, fitting existing fixtures perfectly.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This SKU lacks a magnet (-S), so it cannot accept a CS1-B/DS1-B sensor. The family also adds SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI32 Standard Air Cylinder SI32X680 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X680 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X680 |
| Bore size | Ø32 mm |
| Stroke | 680 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 SAI32X680 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 SAI32X680 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 SI32X680
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×680 | 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 SI32X680 Is Used
Light-Duty Ejection
Ideal for pushing small parts out of CNC machining envelopes using the 402 N force output at 0.5 MPa.
Package Diverting
Handles 680 mm linear routing of light cartons on packaging lines where a compact 32 mm bore is required.
Pallet Stops
Acts as a long-stroke pneumatic stop for low-mass pallets, decelerating smoothly via its 27 mm adjustable cushions.
Replacing the Airtac SI32 Standard Air Cylinder SI32X680 with the SAI32X680
To replace the SI32X680, order the SAI32X680, confirming the ISO 15552 interface, 32 mm bore, 680 mm stroke, G1/8 port, and mounting accessory. Because this is a non-magnet SKU, it cannot support position sensing. When sizing, consider neighbouring bores: a 40 mm bore yields 628 N push at 0.5 MPa. Note that a plain cylinder does not hold load without live air; for load holding, specify an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. As the 680 mm stroke exceeds 300 mm, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X680
- ✓ 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 SI32X680 FAQ
Yes, the SI32X680 is discontinued. The direct replacement is the AirTAC SAI32X680. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 680 mm stroke, G1/8 port, and mounting hardware.
It features a G1/8 port. The force ratings are 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.
Request a Quote for the SAI32X680
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X680 replacement — usually within 7-8 hours.