This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID32X80, 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-SID32X80
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID32X80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke80 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → B04-SAID32X80
- 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-SID32X80
The B04-SID32X80 is an AirTAC double-acting double-rod ISO 15552 cylinder where the B04- prefix marks it as a construction-machinery dedicated variant, mechanically identical to the base SID32X80. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. This model is discontinued; the direct replacement is the SAID32X80, which reuses the same G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions.
Because the second rod can carry a sensor cam or drive two tools simultaneously while resisting rotation, the layout suits rigid transfer tasks. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a -S magnet, so it cannot accept a magnetic switch.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X80 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID32X80 |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID32X80 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The B04-SAID32X80 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-SID32X80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | 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-SID32X80 Is Used
Excavator Linkage Transfer
Equal-both-ways force drives a dual-tool linkage on heavy equipment, using the back rod for a cam while maintaining rigid anti-rotation control.
Concrete Pump Valve Sync
The double-rod layout synchronizes a secondary valve movement on a concrete pump, delivering 483 N @0.7 MPa in both directions.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X80 with the B04-SAID32X80
To replace the discontinued B04-SID32X80, specify the SAID32X80; it is a direct upgrade retaining the exact ISO 15552 mounting interface, 32 mm bore, 80 mm stroke, and equal-both-ways force. Size both directions by checking neighbor bores if more force is needed, but remember the double-rod design outputs identical push and pull values. Choose a double-rod cylinder when anti-rotation stability or driving two tools is required. Mounting options include Basic, FA, LB, and TC. For side-load concerns on strokes >=300 mm, confirm guide clearances. Because this SKU has no -S magnet, it cannot support sensing; if sensing is needed, select an -S model. A plain cylinder does not hold loads on air loss—the cushion only decelerates—so use an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID32X80
- ✓ 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-SID32X80 FAQ
Yes, the B04-SID32X80 is discontinued. The direct replacement is the SAID32X80. The B04- prefix simply marks it as a construction-machinery dedicated variant of the base SID32X80; mechanically, all specs like the G1/8 port and M10x1.25 thread are identical. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
Force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. It operates at 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and a speed range of 30-800 mm/s. The bore is 32 mm with a 12 mm rod, and the air cushion is 27 mm. It does not hold loads on air loss; the cushion only decelerates.
Related AirTAC SAI Cylinders
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