This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X800S, 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 SID100X800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 800mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X800S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID100X800S is a discontinued 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 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100mm bore, G1/2 air port, M20x1.5 rod thread, and 36mm adjustable cushions. The direct replacement is the SAID100X800S, matching the interface, stroke, and mounting.
The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. A double rod prevents rotation, lets the back rod carry a sensor cam, and drives two tools. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SID Series Double-Rod Cylinder SID100X800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X800S |
| Bore size | Ø100 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 SAID100X800S 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAID100X800S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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).
Synchronises two conveyor lanes simultaneously by driving a tool from each end, maintaining equal push and pull force to prevent carton jamming.
Lifts heavy machining fixtures without rotational drift, using the second rod to mount a CS1-B sensor cam for precise mid-stroke positioning.
Applies equal clamping pressure from both directions to stabilise pallets during strapping, ensuring square alignment under high dynamic loads.
Replace the discontinued SID100X800S directly with the SAID100X800S, reusing your ISO 15552 FA, LB, or TC mounts. Size both ways by checking equal force across neighbour bores, ensuring the 100mm bore fits your payload. Choose a double-rod cylinder when you need anti-rotation, to drive two tools, or to mount a sensor on the back rod. The -S magnet enables position sensing. For the 800mm stroke, add external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for held loads use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SID100X800S is discontinued. The direct replacement is the SAID100X800S, offering the same ISO 15552 interface, 800mm stroke, G1/2 port, and equal both-ways force.
Force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Speed is 30-800 mm/s. The G1/2 port and 25mm rod deliver this双向 output without quoting a larger single-rod push value.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X800S replacement — usually within 7-8 hours.