This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X1000S, 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-SID63X1000S 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-SAID63X1000S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B04-SID63X1000S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix designates it as a construction-machinery dedicated variant, mechanically identical to the standard SID63X1000S. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (1402 N @0.5 MPa, 1962 N @0.7 MPa, 2523 N @0.9 MPa). It features a 63mm bore, G3/8 air port, M16x1.5 rod thread, and a 30mm adjustable air cushion at each end. This SID model is discontinued and the direct replacement is the SAID63X1000S, which reuses the same ISO 15552 mounting interface and adds an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life.
The double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam for the built-in -S magnet (compatible with legacy CS1-B/DS1-B switches). For this 1000mm stroke, external guides are recommended to prevent rod-bending under side loads. Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end. For held loads, use an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variants.
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X1000S |
| 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-SAID63X1000S 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-SAID63X1000S 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).
Drives synchronized heavy-equipment covers on construction machinery where the B04- prefix indicates dedicated deployment, utilizing equal both ways force for stable push and pull.
Powers two opposing machining heads simultaneously from a single piston, ensuring perfectly matched timing and equal force on both faces of the ISO 15552 interface.
To replace the discontinued B04-SID63X1000S, specify the direct replacement SAID63X1000S, which matches the 63mm bore, 1000mm stroke, G3/8 port, and ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because force is equal both ways, you size both directions identically using the 1402 N @0.5 MPa figure; if higher force is needed, step up to the 80mm bore, or step down to 50mm for lower force. A double-rod cylinder is the right choice when you need anti-rotation stability, equal push/pull force, or need to drive two tools simultaneously. Retain the -S magnet option for position sensing. For this 1000mm stroke, external guides are critical to manage side-load and prevent rod-bending.
Replacement checklist
Yes, the B04-SID63X1000S is discontinued. The B04- prefix simply marks it as construction-machinery dedicated; mechanically it is identical to the SID63X1000S. The direct replacement is the SAID63X1000S, which uses the same ISO 15552 mounting 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 bore is 63mm, the air port is G3/8, and the rod-end thread is M16x1.5. It operates at 0.15-1.0 MPa with a speed range of 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAID63X1000S replacement — usually within 7-8 hours.