This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X75, 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 SID160X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X75 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This configuration means both faces use the rod-side area, so push and pull force are equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. It features a 160mm bore, a 40mm piston rod, M36x2 rod-end thread, 50mm adjustable air cushions at each end, and a fixed G3/4 air port. This SID model is discontinued and end-of-life; the direct replacement is the SAID160X75, sharing the same ISO 15552 interface, bore, stroke, force, port, and mounting.
Because the SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life, the SAID160X75 is a direct functional upgrade. For this SKU without a -S magnet, a magnetic switch cannot be fitted. A plain cylinder does not hold its load on air loss; the air cushion only decelerates near stroke end, so use an external rod lock for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID160X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X75 |
| Bore size | Ø160 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID160X75 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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAID160X75 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). |
|---|---|
| 160 | 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 a double-ended forming tool where the return stroke must deliver the exact same 13194 N @0.7 MPa force as the advance, ensuring consistent part ejection.
Uses the second rod exiting the rear to push a parallel conveyor indexing mechanism, keeping two packaging lines perfectly in phase without external linkages.
To replace the discontinued SID160X75, select the direct replacement SAID160X75, reusing your existing ISO 15552 mounting hardware (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways by checking neighbour bores: the 125mm bore yields 5734 N @0.5 MPa, and the 200mm bore yields 15080 N @0.5 MPa, both equal in push and pull. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. This non-magnetic SKU cannot take a sensor; choose a -S magnet variant for legacy CS1-B/DS1-B switch accuracy. For this 75mm stroke, side-load is minimal, but for stroke >=300mm ensure guide alignment to prevent binding.
Replacement checklist
Yes, the SID160X75 is discontinued. The direct replacement is the SAID160X75. It shares the same ISO 15552 interface, 160mm bore, 75mm stroke, G3/4 port, and mounting, while adding an upgraded piston seal. You can swap it directly without changing your plumbing or brackets.
Because it is a double-rod cylinder, force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. It operates at 30-500 mm/s, uses a G3/4 port, and has 50mm adjustable cushions.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X75 replacement — usually within 7-8 hours.