This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X160, 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 SID63X160 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 SAID63X160, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID63X160 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, meaning push and pull force are equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The bore is 63 mm, the piston rod is Ø20 mm, and the air port is G3/8. This model is discontinued; the direct replacement is the SAID63X160, sharing the same interface, stroke, and mounting.
The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU has no -S magnet and cannot take a magnetic switch. A plain cylinder does not hold loads on air loss; the 30 mm adjustable cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID63X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X160 |
| 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 SAID63X160 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 SAID63X160 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 tools simultaneously from a single piston, utilizing the equal both-ways force to machine or form parts from both ends with precise 1402 N @0.5 MPa thrust.
Moves pallets along a conveyor using the dual-rod architecture to resist mechanical torsion and prevent binding during horizontal transfer without external guides.
Lifts symmetric workholding fixtures where the exiting rear rod acts as a stable cam follower, ensuring the 71 kg vertical lift capacity remains perfectly balanced.
To replace the discontinued SID63X160, swap directly to the SAID63X160. The SAI family shares the exact ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2), 160 mm stroke, and G3/8 port. Size both ways by checking neighbouring 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 equal both-ways force, anti-rotation stability, or a back rod to drive a second tool. Because this SKU lacks the -S magnet, it cannot support sensing; choose SAID63X160-S if you need switches. For this 160 mm stroke, side-load is minimal, but for stroke >=300 mm ensure guide alignment to prevent binding.
Replacement checklist
Yes, the SID63X160 is discontinued. The direct replacement is the SAID63X160, which matches the ISO 15552 interface, 63 mm bore, 160 mm stroke, G3/8 port, and equal both-ways force.
Force is equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. Speed is 30-800 mm/s. It uses a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X160 replacement — usually within 7-8 hours.