This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X100S, 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 SI32X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X100S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X100S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 100mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the direct replacement SAI32X100S.
The SAI32X100S features an upgraded piston seal with two Y-shaped elements for low start-up pressure. The -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI32 Standard Air Cylinder SI32X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X100S |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAI32X100S 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 SAI32X100S 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. |
| ×100 | 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).
Uses the 402N push force at 0.5MPa to push lightweight molded parts out of an extrusion line reliably.
Secures small electronic housings during ultrasonic welding, taking advantage of the 32mm profile footprint.
Actuates a routing flap on a conveyor belt, where the 100mm stroke provides precise travel.
To replace this SI32X100S, order the SAI32X100S. Verify the ISO 15552 mounting interface, 100mm stroke, G1/8 port (PT/G/NPT thread), and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors. Neighbouring bores: SI40X100S offers 628N push @0.5MPa. Note: plain cylinders drift on air loss; for load holding use the SAIL lock or BSAI clamp-lock variant, or an external pilot check valve.
Replacement checklist
Yes, the SI32X100S is discontinued. The direct replacement is the SAI32X100S. It shares the same ISO 15552 mounting interface, 32mm bore, 100mm stroke, output force, G1/8 port, and accessories, fitting directly into existing fixtures.
This double-acting cylinder has a G1/8 port. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max force of 82kgf at 1.0MPa. Operating speed is 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X100S replacement — usually within 7-8 hours.