This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAI32BX600, 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 SI32BX600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 600mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX600, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32BX600 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 600 mm stroke. Built with an extruded aluminium barrel and a SUS304 stainless piston rod, it delivers 402 N push and 345 N pull at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32BX600, a true drop-in sharing the exact ISO 15552 mounting interface, bore, stroke, force and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Without a -S suffix, this specific SKU lacks a magnet and cannot accept a CS1-B/DS1-B sensor. Based on the 402 N push figure, the computed safe working load is roughly 241 N (about 20 kg for vertical lifts with a 2:1 margin). Note that a plain cylinder drifts on air loss; for load holding, explore the SAIL or BSAI lock variants.
| Model | Airtac SI32 Standard Air Cylinder SI32BX600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX600 |
| Bore size | Ø32 mm |
| Stroke | 600 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 SAI32BX600 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 SAI32BX600 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. |
| ×600 | 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).
Drives lightweight routing gates on packaging lines where the 402 N push force and 600 mm travel easily shift products between belts.
Moves sample trays using the corrosion-resistant SUS304 rod, providing precise 600 mm displacement in humid or chemically exposed testing cabinets.
Pushes empty plastic totes out of sorting stations, leveraging the 20 kg safe vertical lift capacity to clear materials efficiently.
To replace the SI32BX600, order the SAI32BX600. Confirm the ISO 15552 mounting interface, the 32 mm bore, the 600 mm stroke, the G1/8 port, and your mounting accessory (LB, FA, TC, etc.). Because this SKU lacks a magnet, it cannot support position sensing; if switches are needed, specify a -S magnet on the SAI order. Sizing both ways: a 40 mm bore offers 628 N push at 0.5 MPa, while dropping to a 25 mm bore reduces force. At 600 mm, the 12 mm rod is susceptible to bending under side loads—use external guides to prevent rod damage. Finally, standard cushions only decelerate the piston; they do not hold load on air loss, so add an external rod lock or pilot check valve if required.
Replacement checklist
Yes, the AirTAC SI32BX600 is discontinued. The exact drop-in replacement is the SAI32BX600. It shares the exact ISO 15552 mounting interface, 32 mm bore, 600 mm stroke, output force, and G1/8 port, fitting directly into existing fixtures.
This double-acting cylinder operates at 0.15-1.0 MPa (proof 1.5 MPa) with a speed of 30-800 mm/s. Force output is 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. It features a 12 mm SUS304 rod and M10x1.25 thread.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX600 replacement — usually within 7-8 hours.