This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X800, 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-SID80X800
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X800 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X800, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X800
- 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-SID80X800
The AirTAC B04-SID80X800 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The B04- prefix marks this as AirTAC's construction-machinery dedicated variant of the base SID80X800, mechanically identical with a 80mm bore, G3/8 port, M20x1.5 rod thread, and 36mm cushions. This SID model is discontinued; the direct replacement is the SAID80X800, sharing the same interface, force, and mounting.
The double-rod design prevents piston rotation and lets the rear rod carry a sensor cam or drive a second tool, while ISO 15552 mounting (Basic, FA, LB, TC) allows direct reuse of existing brackets. This non-magnet SKU cannot take a switch. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X800 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X800 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X800 |
| Bore size | Ø80 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID80X800 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The B04-SAID80X800 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-SID80X800
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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).
Where the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X800 Is Used
Excavator Linkage
Equal both-ways force drives synchronized extension and retraction of heavy-equipment actuation arms without stroke imbalance.
Loader Transfer Gate
The double-rod anti-rotation特性 keeps the diverter platen stable while routing aggregate materials on construction sites.
Crane Fork Positioner
Rear rod end mechanically links to a secondary cam, allowing synchronized adjustment of fork width on rough-terrain lifts.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X800 with the B04-SAID80X800
Replace the discontinued B04-SID80X800 directly with the SAID80X800, matching the 80mm bore, 800mm stroke, G3/8 port, and 25mm rod. The SAID adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure. Size both ways using equal force: if 3175 N @0.7 MPa is insufficient, step up to the 100mm bore (5153 N); if oversized, drop to the 63mm bore (1962 N). A double rod is right when you need anti-rotation, equal push/pull, or a rear cam. Choose FA, LB, or TC mounts per ISO 15552. Add -S for a magnetic switch (this SKU has none). For the 800mm stroke, use external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID80X800
- ✓ 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-SID80X800 FAQ
Yes, the B04-SID80X800 (AirTAC's construction-machinery dedicated variant of SID80X800) is discontinued. The direct replacement is the SAID80X800. It shares the identical ISO 15552 interface, 80mm bore, 800mm stroke, G3/8 port, and mounting, but features an upgraded piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The air port is G3/8. Note that cushions only decelerate; use an external rod lock for load holding.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID80X800
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