This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID40X200, 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-SID40X200
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID40X200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 200mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID40X200, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → B04-SAID40X200
- 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-SID40X200
The AirTAC B04-SID40X200 is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as a construction-machinery dedicated variant, mechanically identical to the standard SID40X200. A rod exits both ends of the extruded aluminum barrel, meaning push and pull force are equal both ways at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. It features a 16 mm rod, M12x1.25 thread, G1/4 port, and 27 mm adjustable cushions. This SKU has no -S magnet and cannot carry a sensor.
This SID model is discontinued and the direct replacement is the SAID40X200, which reuses the same ISO 15552 mounting interface, bore, stroke, and G1/4 port. The SAI family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID40X200 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID40X200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID40X200 |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID40X200 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The B04-SAID40X200 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-SID40X200
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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-SID40X200 Is Used
Excavator Linkage Actuation
Drives secondary construction machinery covers or access panels where equal push/pull force prevents linkage binding in muddy environments.
Crusher Feed Diverter
Uses the twin rods to push a heavy diverter gate on a mobile crushing plant, ensuring stable two-direction material routing without rotation.
Loader Attachment Shift
Synchronizes a side-shift mechanism on heavy equipment attachments, leveraging the G1/4 port and 27 mm cushions to absorb sudden impacts.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID40X200 with the B04-SAID40X200
To replace the discontinued B04-SID40X200, select the SAID40X200; it is a direct upgrade keeping the identical ISO 15552 mounting interface, 40 mm bore, 200 mm stroke, and G1/4 port. Size both ways by checking neighbor bores if you need more or less equal-both-ways force, and verify your FA, LB, or TC mounting hardware fits the interface. Choose a double-rod cylinder when you need anti-rotation stability or need to drive two tools from one piston. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external physical switches if sensing is required. For strokes of 300 mm or longer, carefully manage side-load alignment to prevent guide bushing wear. Note that air cushions only decelerate near stroke end; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID40X200
- ✓ 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-SID40X200 FAQ
Yes, the B04-SID40X200 (construction-machinery dedicated variant of SID40X200) is discontinued. The direct replacement is the SAID40X200. It shares the same ISO 15552 interface, 40 mm bore, 200 mm stroke, and G1/4 port, but adds an upgraded Y-shaped piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. The air port is G1/4. A plain cylinder does not hold loads on air loss; the 27 mm cushion only decelerates near stroke end, so use an external rod lock for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID40X200
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