This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X160S, 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 SID63X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X160S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID63X160S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force is equal both ways (1402 N @0.5 MPa). This bore features a 20 mm rod, M16x1.5 thread, and a G3/8 port. The SID line is discontinued; the direct replacement is the SAID63X160S, reusing the same ISO 15552 mounting interface, stroke, and force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. A rear rod can carry a sensor cam or drive two tools simultaneously. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SID Series Double-Rod Cylinder SID63X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X160S |
| Bore size | Ø63 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID63X160S 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAID63X160S 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). |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 machining heads simultaneously using both protruding rods, ensuring perfectly synchronized cutting cycles.
Transfers workpieces between conveyor belts with identical push and pull force, preventing hesitation during bidirectional indexing.
Lifts a guided vertical gate using the dual rods to resist torsional twisting, maintaining precise alignment without external guides.
Replace the discontinued SID63X160S directly with the SAID63X160S, retaining the original FA, LB, or TC mounts. Size both ways by checking equal force across neighbor bores: the 50 mm bore yields 825 N @0.5 MPa, while the 80 mm bore yields 2268 N @0.5 MPa. A double rod is right when you need anti-rotation stability or equal force in both directions. The -S magnet enables position sensing. For this 160 mm stroke, side-load is minimal, but for stroke >=300 mm, verify guide tolerance to prevent binding.
Replacement checklist
Yes, the SID63X160S is discontinued. The direct replacement is the SAID63X160S, which shares the same ISO 15552 mounting interface, 160 mm stroke, G3/8 port, and equal-both-ways force.
The G3/8 port feeds a 63 mm bore with a 20 mm rod. Because it is double-rod, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. Speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X160S replacement — usually within 7-8 hours.