This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X150, 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 SID32X150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X150, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X150 is a discontinued ISO 15552 double-acting double-rod cylinder. A 12 mm rod exits both ends of the 32 mm bore barrel, meaning push and pull forces are equal both ways at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The direct replacement is the SAID32X150, which matches the 150 mm stroke, G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushion. The SAI upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because the second rod acts as an anti-rotation guide and can drive a second tool simultaneously, this layout is ideal for symmetrical work. This non-magnetic SKU cannot take a sensor. Note that air cushions only decelerate near stroke end; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SID Series Double-Rod Cylinder SID32X150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X150 |
| Bore size | Ø32 mm |
| Stroke | 150 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 SAID32X150 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 SAID32X150 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. |
| ×150 | 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 protruding back rod to drive a secondary mechanism simultaneously with the main stroke, keeping both ways force equal for matched tool timing.
The dual-rod architecture prevents piston rotation during travel, providing stable linear positioning for precision pick-and-place units.
Fits 32 mm bore ISO 15552 mounts to shift small parts between stations, leveraging equal push and pull forces for bidirectional handling.
To replace the discontinued SID32X150, swap directly to the SAID32X150 without changing the ISO 15552 mounting interface. Size both ways by confirming the 345 N @0.5 MPa equal force is sufficient, or step up to a 40 mm bore if more push/pull is needed. A double rod is right when you need anti-rotation resistance or a back rod to carry a sensor cam. Reuse FA, LB, or TC mounts. This SKU lacks the -S magnet, so it cannot accept legacy CS1-B/DS1-B switches. For this 150 mm stroke, side-load is minimal, but for stroke >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
Yes, the SID32X150 is discontinued. The direct replacement is the SAID32X150, offering the same ISO 15552 interface, 32 mm bore, 150 mm stroke, G1/8 port, and equal-both-ways force.
Force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The fixed air port is G1/8, the rod thread is M10x1.25, and speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X150 replacement — usually within 7-8 hours.