This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X150, 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-SID80X150
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X150, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X150
- 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-SID80X150
The AirTAC B04-SID80X150 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, generating equal force in both directions (2268 N at 0.5 MPa). The B04- prefix marks this as AirTAC's construction-machinery dedicated variant of the base SID80X150, mechanically identical in every spec. This bore features a 25 mm rod, G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. As a double-rod unit, it prevents rotation and can drive two tools simultaneously.
This SID model is discontinued and superseded by the direct replacement SAID80X150. The SAI replacement retains the exact ISO 15552 interface, bore, stroke, and G3/8 port, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S) and cannot accept sensors; it also will not hold loads without live air.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X150 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X150 |
| Bore size | Ø80 mm |
| Stroke | 150 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-SAID80X150 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-SAID80X150 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-SID80X150
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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-SID80X150 Is Used
Excavator Linkage Actuation
Drives synchronized secondary attachments on heavy equipment where equal push and pull force prevents linkage binding during harsh earthmoving cycles.
Crusher Feed Control
Regulates the feed gate on mobile crushing machinery, using the dual-rod anti-rotation property to maintain a steady material flow under heavy vibration.
Paver Screed Adjustment
Provides balanced back-and-forth positioning of paving screeds, utilizing both rod ends to move opposing gauge plates simultaneously without twist.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X150 with the B04-SAID80X150
To replace the discontinued B04-SID80X150, specify the SAID80X150—it is a direct swap matching the ISO 15552 mounting, G3/8 port, and 150 mm stroke. Because force is equal both ways, size the cylinder by checking neighboring bores against your exact push and pull requirements. A double-rod design is the right choice when you need anti-rotation stability, wish to mount a sensor cam on the back rod, or must drive two tools from one piston. Mounting options include Basic, FA, LB, and TC brackets. Since this SKU lacks a -S magnet, magnetic switches cannot be used. For this 150 mm stroke, side-load alignment is manageable, but for any stroke over 300 mm, carefully support the rod to prevent binding. Remember, the air cushion only decelerates near stroke end; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID80X150
- ✓ 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-SID80X150 FAQ
Yes, the B04-SID80X150 is discontinued. The direct replacement is the SAID80X150. The B04- prefix simply denotes the construction-machinery dedicated variant, and the SAID replacement matches its ISO 15552 interface, 80 mm bore, 150 mm stroke, G3/8 port, and mounting dimensions exactly, while adding an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. The air port is G3/8.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID80X150
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