This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X75, 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 SID Series Double-Rod Cylinder SID32X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X75 is a double-acting, double-rod ISO 15552 cylinder with a 32mm bore and 75mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area so push and pull force are equal at 345N @0.5MPa, 483N @0.7MPa, and 621N @0.9MPa. The bore fixes the air port to G1/8, with a 12mm rod, M10x1.25 thread, and 27mm adjustable cushions. This SID model is discontinued; the direct replacement is the SAID32X75, which reuses the exact ISO 15552 mounting interface and adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
Because the second rod prevents piston drift and stops rotation, it is ideal for driving two tools or mounting a sensor cam externally. This non-magnet SKU cannot take a switch. Note that a plain cylinder does not hold loads on air loss—the cushion only decelerates—so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID32X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X75 |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAID32X75 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 SAID32X75 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. |
| ×75 | 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 two opposing end-effectors from one piston, using the equal both-ways 345N @0.5MPa force to push and pull identical loads without bias.
The twin rods prevent piston twist during vertical elevation, maintaining precise 75mm stroke guidance for light 18kg vertical lifts.
The rear rod extension provides a stable mounting point for an external sensor cam, useful since this non-magnet block cannot hold internal switches.
To replace the discontinued SID32X75, swap directly to the SAID32X75; it matches the 32mm bore, 75mm stroke, G1/8 port, and ISO 15552 dimensions. Size both ways by verifying the equal force fits your load, or step to neighbour bores (40mm yields 528N @0.5MPa). Choose a double rod when you need anti-rotation or must drive two tools simultaneously. Mounting uses FA, LB, or TC brackets. This SKU lacks the -S magnet and cannot take sensors. For stroke lengths >=300mm, verify side-load limits to prevent guide wear.
Replacement checklist
Yes, the SID32X75 is discontinued. The direct replacement is the SAID32X75, which matches the 32mm bore, 75mm stroke, G1/8 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
Force is equal both ways: 345N @0.5MPa, 483N @0.7MPa, and 621N @0.9MPa. The 32mm bore fixes the air port to G1/8, the rod is 12mm with an M10x1.25 thread, and adjustable cushions are 27mm.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X75 replacement — usually within 7-8 hours.