This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X200SFB, 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 SI32X200SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 200mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X200SFB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X200SFB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 200mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is directly replaced by the SAI32X200SFB. This direct upgrade shares the exact same interface, force and FB flange mounting.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. For load holding, note that a standard cylinder drifts on air loss; the cushion only decelerates. Use a pilot check valve or the SAIL lock variant.
| Model | Airtac SI32 Standard Air Cylinder SI32X200SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X200SFB |
| Bore size | Ø32 mm |
| Stroke | 200 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 SAI32X200SFB 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 SAI32X200SFB 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. |
| ×200 | 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 reliably push lightweight machined components out of a fixture on an automated line.
Actuates a routing gate for small parcels, where the 200mm stroke and FB flange mount provide stable lateral diversion.
Opens and closes access hoppers on material bins, taking advantage of the compact 32mm profile barrel and M10x1.25 rod thread.
To replace the SI32X200SFB, order the SAI32X200SFB. Verify the ISO 15552 mounting interface, 32mm bore, 200mm stroke, G1/8 port, and FB flange. The -S magnet enables CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). For sizing, the 32mm bore yields 402N push at 0.5MPa; stepping up to 40mm provides 628N. If your stroke exceeds 300mm, add external guides to prevent rod bending and side-load wear. Remember that standard cylinders do not hold loads without live air—select the SAIL or BSAI lock variant if braking is required.
Replacement checklist
Yes, the SI32X200SFB is discontinued. The direct replacement is the SAI32X200SFB. It shares the same ISO 15552 mounting interface, 32mm bore, 200mm stroke, output force, G1/8 port, and FB flange, fitting existing fixtures perfectly.
The bore is 32mm with 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 of 82kgf at 1.0MPa. Speed is 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X200SFB replacement — usually within 7-8 hours.