This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX1000S, 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 SI32AX1000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 1000mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX1000S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX1000S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 1000mm stroke, and a SUS420J2 stainless steel rod. Delivering 402 N of push force at 0.5 MPa through a G1/8 port, its production has ended. The direct replacement is the SAI32AX1000S, matching the exact bore, stroke, output force, port, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Because this SKU includes the -S magnet, it supports legacy CS1-B/DS1-B sensors, while the SAI family utilizes current AirTAC switches.
| Model | Airtac SI32 Standard Air Cylinder SI32AX1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX1000S |
| Bore size | Ø32 mm |
| Stroke | 1000 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 SAI32AX1000S 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 SAI32AX1000S 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. |
| ×1000 | 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 light packages across a 1000mm conveyor lane using the 402 N push force, with the SUS420J2 rod resisting minor moisture exposure.
Ejects small machined parts over a 1-meter track, relying on the adjustable 27mm air cushions to decelerate at stroke end.
To replace the SI32AX1000S, order the SAI32AX1000S. Confirm your ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/8 air port, and the -S magnet requirement. If downsizing, a smaller bore drops force significantly; if sizing up, a 40mm bore yields 628 N push at 0.5 MPa. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or explore the SAIL/BSAI lock variants. With a 1000mm stroke, prevent rod bending by using an external guide to absorb side loads. The -A rod indicates SUS420J2 stainless material.
Replacement checklist
Yes, the SI32AX1000S is discontinued. The direct replacement is the SAI32AX1000S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 1000mm stroke, G1/8 port, and mounting accessories.
This double-acting cylinder uses a G1/8 port. It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and 724 N push at 0.9 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX1000S replacement — usually within 7-8 hours.