This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX700S, 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.

The AirTAC SI32 Standard Air Cylinder SI32AX700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 700mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX700S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX700S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 700mm stroke. Delivering 402N push at 0.5MPa, it is replaced by the SAI32AX700S. This direct upgrade keeps the same G1/8 port, M10x1.25 thread, and 27mm cushions.
The SAI uses an upgraded piston seal (two Y-shaped elements for low start-up pressure) and adds SAIL/BSAI lock variants the SI lacked. This unit has a SUS420J2 stainless rod and a magnet for CS1-B/DS1-B sensors.
| Model | Airtac SI32 Standard Air Cylinder SI32AX700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX700S |
| Bore size | Ø32 mm |
| Stroke | 700 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 SAI32AX700S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX700S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×700 | 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).
Pushes small packages on a 700mm run using a 402N push force at 0.5MPa, guided externally to prevent rod bending.
Cycles a fluid valve in a damp cell using the SUS420J2 rod option, relying on the 27mm cushions for end control.
To replace the SI32AX700S, order the SAI32AX700S, confirming the ISO 15552 interface, 32mm bore, 700mm stroke, G1/8 port, and mounting accessory. The S equivalent retains the magnet for current AirTAC switches. For higher force, a 40mm bore yields 628N push at 0.5MPa; for tighter spaces, a 25mm bore offers less force. At 700mm, prevent rod bending by using an external guide to absorb side loads. Plain cylinders drift on air loss; for load holding, use an external pilot check valve or the SAIL lock variant.
Replacement checklist
Yes, the SI32AX700S is discontinued. The direct replacement is the SAI32AX700S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 700mm stroke, force, G1/8 port, and mounting fixtures.
The 32mm bore uses a G1/8 port. At 0.5MPa it provides 402N push and 345N pull. At 0.7MPa push is 563N, and 724N at 0.9MPa. The theoretical maximum force is 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX700S replacement — usually within 7-8 hours.