This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X80S, 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-SID63X80S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X80S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X80S
- 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-SID63X80S
The AirTAC B04-SID63X80S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix denotes the construction-machinery dedicated variant, mechanically identical to the standard SID63X80S. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. It features a 63 mm bore, G3/8 port, M16x1.5 rod thread, and a 30 mm adjustable air cushion at each end. This SID model is discontinued; the direct replacement is the SAID63X80S, sharing the same ISO 15552 interface, bore, stroke, and mounting.
The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X80S |
| Bore size | Ø63 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID63X80S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The B04-SAID63X80S 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-SID63X80S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | 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-SID63X80S Is Used
Excavator Linkage Control
Drives dual-tool mechanisms on heavy equipment with equal push and pull force, preventing uneven wear on construction machinery linkage components.
Loader Attachment Actuation
Provides synchronized motion from both rod ends for auxiliary attachments, ensuring balanced clamping and positioning on heavy-duty loaders.
Crane Counterweight Shift
Utilizes the rear rod to carry a sensor cam for precise position feedback while shifting counterweights on mobile cranes.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X80S with the B04-SAID63X80S
To replace the discontinued B04-SID63X80S, specify the SAID63X80S. It is a direct: identical 63 mm bore, 80 mm stroke, G3/8 port, M16x1.5 thread, and ISO 15552 mounting (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because force is equal both ways (1402 N @0.5 MPa), size both directions identically; if neighbouring bores are considered, the 50 mm provides less force (825 N @0.5) and the 80 mm provides more (2268 N @0.5). A double rod is right when you need anti-rotation, a back rod to carry a sensor cam, or to drive two tools. Retain the -S magnet for CS1-B/DS1-B sensor mounting. For stroke lengths >=300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X80S
- ✓ 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-SID63X80S FAQ
Yes, the B04-SID63X80S (construction-machinery dedicated variant of SID63X80S) is discontinued. The direct replacement is the SAID63X80S. It shares the same ISO 15552 interface, 63 mm bore, 80 mm stroke, G3/8 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal for longer life.
Force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa, with a speed range of 30-800 mm/s. The cylinder uses a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions.
Related AirTAC SAI Cylinders
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