This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X160S, 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 SID80X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X160S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X160S 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, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore sets the port to G3/8, with a 25 mm rod and M20x1.5 thread. This SID model is discontinued; the direct replacement is the SAID80X160S, reusing the same ISO 15552 mounting interface, bore, stroke, and port.
The double-rod design prevents rod rotation and lets the back rod carry a sensor cam or drive a second tool. The SAI replacement upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID80X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X160S |
| Bore size | Ø80 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID80X160S 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAID80X160S 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). |
|---|---|
| 80 | 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, using the equal both ways force to machine parts on both ends efficiently.
Uses the twin-rod architecture to prevent rod rotation during transit, ensuring precise alignment when shifting products between conveyor belts.
Employs the back rod to carry a sensor cam while pushing and pulling a heavy pallet fixture with identical 2268 N @0.5 MPa force.
To replace the discontinued SID80X160S, install the direct replacement SAID80X160S, which matches the 80 mm bore, 160 mm stroke, G3/8 port, and ISO 15552 mounting. Choose a double-rod cylinder when you need equal force both ways, anti-rotation stability, or a back rod to drive a second tool. If sizing both ways, compare neighbouring bores (63 mm or 100 mm) to match the exact equal-both-ways force. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet for legacy CS1-B/DS1-B switches. For this 160 mm stroke, side-load is minimal, but for strokes >=300 mm, verify guide alignment to prevent binding.
Replacement checklist
Yes, the SID80X160S is discontinued. The direct replacement is the SAID80X160S, which shares the same ISO 15552 interface, 80 mm bore, 160 mm stroke, G3/8 port, and mounting hardware.
Force is equal both ways at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The operating speed is 30-800 mm/s, operating pressure is 0.15-1.0 MPa, and it uses a G3/8 port.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X160S replacement — usually within 7-8 hours.