This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X100, 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-SID63X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B04-SID63X100 is a double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The B04- prefix marks this as a construction-machinery dedicated variant of the base SID63X100, mechanically identical with a 63mm bore, 100mm stroke, G3/8 port, M16x1.5 rod thread, and 30mm adjustable cushions. This SKU has no -S magnet and cannot take a magnetic switch.
This SID model is discontinued and replaced by the direct replacement SAID63X100, which reuses the exact ISO 15552 mounting interface and adds an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The double-rod design prevents rod rotation and lets the back rod drive a second tool. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X100 |
| Bore size | Ø63 mm |
| Stroke | 100 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-SAID63X100 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-SAID63X100 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. |
| ×100 | 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 secondary construction-machinery mechanisms with equal push/pull force, using the double-rod geometry to prevent rotation under heavy side-loading.
Simultaneously operates dual jaws or clamping tools on heavy equipment, leveraging the back rod for compact space-saving integration.
Provides stable, equal-both-ways shifting of diverter valves on concrete pumps, ensuring reliable flow control without rod deflection.
Replace the discontinued B04-SID63X100 directly with the SAID63X100; it shares the identical ISO 15552 dimensions, 63mm bore, 100mm stroke, G3/8 port, and equal both-ways force. When sizing both ways, verify your load against the 1402 N @0.5 MPa limit, or step up to a neighbour bore like 80mm if higher force is needed. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. Reuse FA, LB, or TC mounts. For strokes >=300mm, ensure adequate side-load guidance. This non-magnetic SKU cannot support sensors; select an -S model if switch accuracy is required.
Replacement checklist
Yes, the B04-SID63X100 is discontinued. The direct replacement is the SAID63X100. The B04- prefix simply marks it as the construction-machinery dedicated variant of the SID63X100. The SAID replacement shares the same ISO 15552 interface, bore, stroke, G3/8 port, and force, while adding 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 with a fixed G3/8 air port. Note that air cushions only decelerate near stroke end; the cylinder will drift on air loss, so use an external rod lock for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAID63X100 replacement — usually within 7-8 hours.