This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X800, 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 SID63X800 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X800, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID63X800 is a double-acting double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal force both ways (1402 N at 0.5 MPa). This 63 mm bore, 800 mm stroke model is discontinued; the direct replacement is the SAID63X800, matching the G3/8 port, M16x1.5 rod thread, and 30 mm cushions. The SAI upgrade uses a two-piece Y-shaped piston seal for lower start-up pressure.
Because both faces use the rod-side area, push and pull forces are identical. The equal both-ways output simplifies symmetric machine timing, and the rear rod can drive a second tool or carry a sensor cam. Note this SKU has no -S magnet and cannot take a switch.
| Model | Airtac SID Series Double-Rod Cylinder SID63X800 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X800 |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAID63X800 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 SAID63X800 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. |
| ×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).
Drives a dual-sided pusher on a packaging line, using the equal both-ways force to advance and retract products with identical kinetic energy.
Mounts a cutting tool on the front rod and a sensor cam on the rear rod, leveraging the 800 mm stroke for extended linear machining reach.
Employs the double-rod structure to lift and lower a heavy 71 kg vertical gate without rotational drift, ensuring smooth guided descent.
To replace the discontinued SID63X800, specify the SAID63X800 for an exact ISO 15552 mounting interface match. Size both ways by checking equal force: if 1402 N at 0.5 MPa is insufficient, step up to an 80 mm bore (2268 N), or drop to a 50 mm bore (825 N) if lower. Choose a double-rod configuration when you need anti-rotation resistance or equal push/pull kinetics. Mounting options include Basic, FA, LB, and TC. For the 800 mm stroke, add external guides to prevent rod bending under side loads. This non-magnetic SKU cannot accept switches.
Replacement checklist
Yes, the SID63X800 is discontinued. The direct replacement is the SAID63X800, which matches the ISO 15552 mounting interface, 63 mm bore, 800 mm stroke, G3/8 port, and equal both-ways force.
Force is equal both ways: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The air port is G3/8, the rod thread is M16x1.5, and it has 30 mm adjustable cushions. The cushion only decelerates near stroke end; it does not hold loads on air loss.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X800 replacement — usually within 7-8 hours.