This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAI32BX95, 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 Airtac SI32 Standard Air Cylinder SI32BX95 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 95mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX95, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32BX95 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 95mm stroke, and a SUS304 stainless steel rod. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32BX95. This drop-in successor matches the G1/8 port, M10x1.25 thread, and mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. For this bore, safe working load is ~241N and vertical lift is ~20kg with a 2:1 margin. Note this SKU lacks a magnet, so it cannot take a sensor.
| Model | Airtac SI32 Standard Air Cylinder SI32BX95 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX95 |
| Bore size | Ø32 mm |
| Stroke | 95 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 SAI32BX95 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 SAI32BX95 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×95 | 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).
Ideal for small part clamping in machining cells where the SUS304 rod resists corrosion from cutting fluids.
Provides reliable ejection of lightweight plastic or aluminium components using 402N of push force at 0.5MPa.
Acts as a precise 95mm stroke stopper for test fixtures, offering a safe working load of approximately 241N.
To replace the SI32BX95, order SAI32BX95 to retain the exact ISO 15552 interface, 32mm bore, 95mm stroke, and G1/8 port. This unit has a SUS304 rod and no magnet, meaning it cannot support CS1-B/DS1-B switches. For sizing, a 40mm bore yields 628N push at 0.5MPa, while dropping to a smaller bore reduces force. If you need load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants, as cushions only decelerate. At 95mm stroke, side-load risks are low, but ensure straight alignment.
Replacement checklist
Yes, the SI32BX95 is discontinued. The exact drop-in replacement is the SAI32BX95. It shares the same ISO 15552 mounting interface, 32mm bore, 95mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly.
This 32mm bore cylinder has a G1/8 port. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and 724N push at 0.9MPa. The theoretical maximum force is 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX95 replacement — usually within 7-8 hours.