This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X160, 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-SID80X160
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X160
- 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-SID80X160
The AirTAC B04-SID80X160 is a double-acting double-rod ISO 15552 cylinder where the B04- prefix designates it as the construction-machinery dedicated variant of the base SID80X160, mechanically identical to the standard model. Because a rod exits both ends on one piston, both faces use the rod-side area, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. It features a 25 mm rod, M20x1.5 thread, G3/8 port, and 36 mm adjustable air cushions. This SID series is discontinued and the direct replacement is the SAID80X160.
The SAID80X160 shares the exact ISO 15552 interface, bore, stroke, and mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2), allowing direct reuse of existing brackets. The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a -S magnet and cannot take a sensor.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X160 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X160 |
| Bore size | Ø80 mm |
| Stroke | 160 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-SAID80X160 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-SAID80X160 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-SID80X160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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-SID80X160 Is Used
Excavator Actuation
Drives dual opposing tools or gates on heavy equipment with equal push and pull force, leveraging the 25 mm double rod for anti-rotation stability.
Crane Mechanism
Provides synchronized movement from both rod ends for positioning deflectors or heavy panels, operating reliably up to 1.0 MPa in construction environments.
Concrete Plant Gates
Handles abrasive material routing where the back rod can mechanically trip a limit switch externally, as this B04 variant lacks internal sensing.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X160 with the B04-SAID80X160
To replace the discontinued B04-SID80X160, install the direct replacement SAID80X160, which matches the G3/8 port, 25 mm rod, M20x1.5 thread, and ISO 15552 mounting interface. When sizing both ways, verify your load against the equal force of 2268 N @0.5 MPa; if more force is needed, step up to the 100 mm bore, or drop to the 63 mm bore for lighter loads. A double-rod design is the right choice when you need anti-rotation stability or need to drive two tools simultaneously from one cylinder. Mounting options include FA, LB, and TC. Because this SKU has no -S magnet, it cannot support sensing. For strokes of 300 mm or longer, carefully manage side-load alignment 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
- ✓ Same ISO 15552 interface → B04-SAID80X160
- ✓ 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-SID80X160 FAQ
Yes, the B04-SID80X160 is discontinued. The direct replacement is the SAID80X160. The B04- prefix simply marks it as the construction-machinery dedicated variant of the SID80X160, so the SAID80X160 matches its ISO 15552 interface, 80 mm bore, 160 mm stroke, G3/8 port, and 25 mm rod exactly.
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, the rod is 25 mm with an M20x1.5 thread, and it has 36 mm adjustable cushions.
Related AirTAC SAI Cylinders
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