This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X100S, 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-SID63X100S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X100S
- 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-SID63X100S
The AirTAC B04-SID63X100S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID63X100S, mechanically identical to it. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (1402 N @0.5 MPa, 1962 N @0.7 MPa, 2523 N @0.9 MPa). It features a 63 mm bore, G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions at each end. This SID model is discontinued and the direct replacement is the SAID63X100S.
The SAID successor shares the same ISO 15552 interface, bore, stroke, and mounting, but uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold its load 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-SID63X100S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X100S |
| Bore size | Ø63 mm |
| Stroke | 100 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-SAID63X100S 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-SAID63X100S 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-SID63X100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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-SID63X100S Is Used
Excavator Control Linkage
Drives dual-tool mechanisms or pilot valves on heavy equipment where equal both-ways force and anti-rotation stability are critical for precise positioning.
Loader Boom Synchronization
Uses the back rod to carry a sensor cam for stroke feedback on construction machinery, ensuring the boom maintains exact sync without rotational drift.
Crane Extension Guidance
Provides equal push and pull force along the G3/8 port interface for heavy-equipment extension frames, relying on ISO 15552 mounting reuse for easy frame integration.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X100S with the B04-SAID63X100S
To replace the discontinued B04-SID63X100S, specify the SAID63X100S, which is a direct match for the ISO 15552 mounting interface, G3/8 port, and 100 mm stroke. Size both ways by verifying the equal push/pull force of 1402 N @0.5 MPa is sufficient; if more force is needed, step up to the 80 mm bore (2268 N @0.5 MPa) or down to the 50 mm bore (825 N @0.5 MPa). A double-rod design is the right choice when you need anti-rotation stability or when the back rod must carry a sensor cam. Mounting options include Basic, FA, LB, and TC. The -S magnet supports legacy CS1-B/DS1-B switches. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X100S
- ✓ 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-SID63X100S FAQ
Yes, the B04-SID63X100S is discontinued. The direct replacement is the SAID63X100S. The B04- prefix only marks it as the construction-machinery dedicated variant of the base SID63X100S, so all physical specs like the 63 mm bore, 100 mm stroke, G3/8 port, and ISO 15552 mounting are identical. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI line lacked.
Because it is a double-rod cylinder, 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, speed is 30-800 mm/s, and it uses a G3/8 port with M16x1.5 rod thread. A plain cylinder does not hold loads on air loss; use an external rod lock for held loads.
Related AirTAC SAI Cylinders
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