This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X200, 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 SID80X200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X200, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X200 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring force is equal both ways at 2268 N @0.5 MPa. This SKU lacks a magnet (-S), so it cannot accept magnetic switches. The model is discontinued; the direct replacement is the SAID80X200, which retains the G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. The SAI family also introduces an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life.
A double-rod design prevents rod rotation and allows the rear rod to drive a second tool. Note that air cushions only decelerate the piston near stroke end; they do not hold loads on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID80X200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X200 |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAID80X200 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 SAID80X200 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. |
| ×200 | 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 a conveyor diverter arm from both ends to equalize thrust and prevent rod twisting during rapid package sorting.
Uses the second protruding rod to actuate a secondary clamping fixture simultaneously with the primary forming operation.
Lowers a 100 kg platen with equal push and pull force, maintaining smooth descent without the uneven force curves of single-rod units.
To replace the discontinued SID80X200, install the SAID80X200 directly—it matches the 80 mm bore, 200 mm stroke, G3/8 port, and ISO 15552 mounting interface (Basic, FA, LB, TC). Because force is equal both ways, you size both extension and retraction identically; if 3175 N @0.7 MPa is insufficient, step up to the 100 mm bore, or drop to 63 mm if overspecified. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools simultaneously. This non-magnetic SKU cannot use sensors; add the -S suffix on the SAID replacement if you need legacy CS1-B/DS1-B switch sensing. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
Yes, the SID80X200 is discontinued. The direct replacement is the SAID80X200. It shares the identical ISO 15552 mounting interface, 80 mm bore, 200 mm stroke, G3/8 port, and equal-both-ways force. The SAI upgrade also features a two Y-shaped one-way element piston seal for longer life.
Because it is a double-rod cylinder, push and pull force are equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The operating speed is 30-800 mm/s. It uses a G3/8 air port and features 36 mm adjustable air cushions at each end.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X200 replacement — usually within 7-8 hours.