This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX210, 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 SI32AX210 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 210mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX210, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX210 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 210mm stroke. Featuring a SUS420J2 stainless piston rod and G1/8 port, it delivers 402N push force at 0.5MPa. The direct replacement is the SAI32AX210, matching the bore, stroke, force, port and ISO 15552 mounting interface exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Without a magnet, this SKU cannot take a sensor. The cushion only decelerates; use SAIL or BSAI lock variants to hold loads.
| Model | Airtac SI32 Standard Air Cylinder SI32AX210 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX210 |
| Bore size | Ø32 mm |
| Stroke | 210 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 SAI32AX210 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 SAI32AX210 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. |
| ×210 | 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 at 30-800mm/s, leveraging the SUS420J2 stainless rod for corrosion resistance in humid dispatch zones.
To replace the SI32AX210, order the SAI32AX210. Verify the ISO 15552 mounting interface, 32mm bore, 210mm stroke, G1/8 port (PT/G/NPT thread) and your mounting accessory. This non-magnet SKU cannot accept a CS1-B/DS1-B sensor. For sizing, the 32mm bore yields 402N push at 0.5MPa; if more force is needed, step up to a 40mm bore (628N push). At 210mm stroke, guide external rods to prevent side-load bending. A plain cylinder drifts on air loss; for load holding, specify the SAIL lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
Yes, the AirTAC SI32AX210 is discontinued. The direct replacement is the SAI32AX210. It shares the exact same ISO 15552 mounting interface, 32mm bore, 210mm stroke, force, G1/8 port and mounting accessories, fitting directly into existing fixtures.
This 32mm bore cylinder has a G1/8 air port. The thrust ratings are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa. It operates at 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX210 replacement — usually within 7-8 hours.