This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X1000, 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 B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X1000, which matches its ISO interface, bore, stroke, force and mounting.
The B04-SID63X1000 is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix denotes AirTAC's construction-machinery dedicated variant, mechanically identical to the standard SID63X1000. A rod exits both ends of the extruded aluminum barrel on a single piston, ensuring push and pull force are equal both ways (1402 N @0.5 MPa, 1962 N @0.7 MPa, 2523 N @0.9 MPa). It features a Ø20 mm piston rod, M16x1.5 rod-end thread, 30 mm adjustable air cushions at each end, and a G3/8 air port. This SKU has no -S magnet and cannot accept a magnetic switch.
This SID model is discontinued and end-of-life. The direct replacement is the SAID63X1000, which retains the same ISO 15552 mounting interface, bore, stroke, and equal-both-ways force. The SAI family introduces an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life, alongside SAIL and BSAI lock variants.
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X1000 |
| Bore size | Ø63 mm |
| Stroke | 1000 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 B04-SAID63X1000 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 B04-SAID63X1000 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. |
| ×1000 | 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).
Equal both-ways force drives dual-action construction machinery linkages, while the double-rod geometry prevents rotational play under heavy soil engagement.
The B04- prefix suits heavy-equipment builders; the cylinder opens and closes aggregate feed gates, using the back rod to simultaneously actuate a dust-cover linkage.
Drives a synchronized pusher arm on a construction-material handler, leveraging the 1000 mm stroke to transfer heavy pallets without rotational drift.
To replace the discontinued B04-SID63X1000, specify the SAID63X1000; it is a direct swap preserving the ISO 15552 interface, G3/8 port, and 1500 mm max standard stroke limit. Because force is equal both ways, you can size both directions identically; if 1402 N @0.5 MPa is insufficient, step up to the 80 mm bore (2268 N), or drop to the 50 mm bore (825 N) if lower. A double-rod design is the right choice when you need anti-rotation stability, want to drive two tools from one cylinder, or need to mount a sensor cam on the back rod. You can reuse FA, LB, or TC mounts. As this is a non-magnetized SKU, position sensing is not supported. At 1000 mm stroke, account for side-load and rod-bending by using external guides to prevent premature seal wear. A plain cylinder does not hold loads on air loss; use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
Yes, the B04-SID63X1000 is discontinued. The direct replacement is the SAID63X1000. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SID63X1000; the SAID replacement shares the exact same ISO 15552 interface, bore, stroke, and G3/8 port, but adds an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is G3/8. It operates at 0.15-1.0 MPa with a speed of 30-800 mm/s. The air 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 B04-SAID63X1000 replacement — usually within 7-8 hours.