This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X150, 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 SID160X150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X150, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X150 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, so push and pull force are equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa and 16964 N @0.9 MPa. This discontinued model is fully replaced by the SAID160X150 direct, retaining the 40 mm rod, G3/4 port, M36x2 thread and 50 mm adjustable cushion.
The SAID upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. A double rod prevents rotation and can drive two tools, and the ISO 15552 interface lets you reuse FA, LB or TC mounts. This non-magnetic SKU cannot take a sensor.
| Model | Airtac SID Series Double-Rod Cylinder SID160X150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X150 |
| Bore size | Ø160 mm |
| Stroke | 150 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 SAID160X150 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 SAID160X150 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. |
| ×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).
Drives two opposing machining heads simultaneously with equal push and pull force, ensuring balanced material removal without rotational play.
Uses the dual-rod architecture to guide a heavy transfer gate on the conveyor line, preventing binding and maintaining precise alignment.
Deploys a stopping jaw from both ends of the piston to halt pallets centrally, absorbing kinetic energy via the 50 mm adjustable air cushions.
Replace the discontinued SID160X150 with the SAID160X150, which matches the 160 mm bore, 150 mm stroke, G3/4 port and ISO 15552 mounting. Size both ways by checking equal force: if 9425 N @0.5 MPa is excessive, step down to the 125 mm bore (5734 N @0.5 MPa); if more is needed, the 200 mm bore gives 15080 N @0.5 MPa. Choose a double rod when you need anti-rotation or must drive two tools simultaneously. Mounts include Basic, FA, LB and TC. Because this SKU lacks the -S magnet, it cannot use magnetic switches. For strokes >=300 mm, verify side-load bearing limits. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
Yes, the SID160X150 is discontinued. The direct replacement is the SAID160X150, offering the same ISO 15552 interface, 160 mm bore, 150 mm stroke, G3/4 port and mounting. The SAI family also adds upgraded piston seals and SAIL or BSAI lock variants.
Force is equal in both directions because both faces use the rod-side area: 9425 N @0.5 MPa, 13194 N @0.7 MPa and 16964 N @0.9 MPa. The air port is G3/4.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X150 replacement — usually within 7-8 hours.