This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32BX195, 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 SI32BX195 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 195mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32BX195, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32BX195 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 195mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, this legacy unit is replaced by the SAI32BX195. The SAI is a direct upgrade: identical interface, stroke, force, and M10x1.25 rod thread, but uses an upgraded piston seal (two Y-shaped one-way elements) for lower start-up pressure and longer life. As a B-variant, it features a SUS304 stainless steel rod for corrosion resistance. Note this SKU lacks a magnet and cannot accept sensors.
The SAI family also introduces variants the SI lacked, like the SAIL air-released lock and SAIF built-in valve. If you need Viton H seals for high-temp environments up to 150C, or load holding on air loss, specify these SAI options or external pilot check valves.
| Model | Airtac SI32 Standard Air Cylinder SI32BX195 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX195 |
| Bore size | Ø32 mm |
| Stroke | 195 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 SAI32BX195 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 SAI32BX195 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. |
| ×195 | 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 eject small machined components from a fixture without damaging the surface.
Actuates a lightweight routing flap on a conveyor line, benefiting from the 30-800mm/s speed range and compact 32mm bore.
The SUS304 stainless rod provides necessary corrosion resistance for actuating moving parts in humid or chemically exposed laboratory settings.
To replace the SI32BX195, order the SAI32BX195. Confirm the ISO 15552 mounting interface, 32mm bore, 195mm stroke, G1/8 port, and M10x1.25 rod thread match your fixture. This B-variant uses a SUS304 stainless rod; choose the blank carbon steel option if corrosion is not a concern. Because this SKU lacks a magnet (-S), it cannot accept CS1-B/DS1-B sensors; order an SAI32BX195S if position sensing is required. At 195mm stroke, side-load risks are low, but ensure proper guide alignment to prevent rod bending. For higher force, the neighbouring 40mm bore provides 628N at 0.5MPa. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
Yes, the SI32BX195 is discontinued. The direct replacement is the SAI32BX195. It shares the same ISO 15552 mounting interface, 32mm bore, 195mm stroke, G1/8 port, and output force, fitting directly into existing fixtures.
The 32mm bore uses a G1/8 port. It generates 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.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX195 replacement — usually within 7-8 hours.