This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X80, 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.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X80
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80
The AirTAC B04-SID63X80 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, generating equal force both ways (1402 N at 0.5 MPa). The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the standard SID63X80 with a 63 mm bore, 80 mm stroke, and G3/8 port. Because the SID series is discontinued, the direct replacement is the SAID63X80, which reuses the same ISO 15552 mounting interface and adds an upgraded piston seal for lower start-up pressure.
This design provides anti-rotation stability and allows the back rod to drive a second tool, while the carbon/SUS420J2 rod material options suit harsh heavy-equipment environments. Note this non-magnetic SKU cannot take a sensor, and a plain cylinder does not hold loads on air loss—use an external rod lock for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X80 |
| Bore size | Ø63 mm |
| Stroke | 80 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-SAID63X80 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| 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-SAID63X80 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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).
Where the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 Is Used
Excavator Linkage Actuation
Provides equal push and pull force for moving heavy machinery covers or access panels on construction equipment, utilizing the double-rod design for stable, anti-rotation performance.
Heavy-Duty Material Diversion
Drives dual-sided diverter gates on aggregate or bulk material conveyors, where the rear rod simultaneously operates a secondary mechanical sync arm.
Crawler Component Indexing
Indexes track or undercarriage sub-components during assembly, using the 71 kg vertical lift capacity to safely raise and lower steel structures without drift.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 with the B04-SAID63X80
To replace the discontinued B04-SID63X80, specify the SAID63X80; it is a direct swap retaining the 63 mm bore, 80 mm stroke, G3/8 port, and M16x1.5 rod thread. When sizing, verify the equal both ways force (1402 N at 0.5 MPa, 1962 N at 0.7 MPa, 2523 N at 0.9 MPa) handles your load, or step up to a larger bore if needed. Choose a double-rod cylinder when anti-rotation or dual-tool driving is required. Mounting options include Basic, FA, LB, and TC. Because this SKU lacks the -S magnet, it cannot use legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, carefully manage side-load alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X80
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80 FAQ
Yes, the SID series is discontinued. The direct replacement is the SAID63X80. The B04- prefix simply marks it as the construction-machinery dedicated variant; mechanically, it is identical to the standard SID63X80. The SAID replacement shares the same ISO 15552 interface, 63 mm bore, 80 mm stroke, and G3/8 port.
It features a G3/8 air port and a 20 mm piston rod. Because it is a double-rod cylinder, the push and pull forces are equal both ways: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The air cushion decelerates the load at stroke end but does not hold the load on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID63X80
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAID63X80 replacement — usually within 7-8 hours.