This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X700S, 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-SID63X700S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X700S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X700S
- 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-SID63X700S
The AirTAC B04-SID63X700S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID63X700S, sharing identical mechanics. A rod exits both ends on one piston, meaning both faces use the rod-side area to deliver equal push and pull force of 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. It features a 63 mm bore, a G3/8 air port, and an M16x1.5 rod thread. This legacy SID model is discontinued and replaced by the direct replacement SAID63X700S.
The SAID replacement reuses the exact ISO 15552 mounting interface, bore, stroke, and adjustable 30 mm cushions, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The double-rod design prevents piston rotation and allows the back rod to carry a sensor cam for the installed -S magnet (compatible with legacy CS1-B/DS1-B switches).
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X700S |
| Bore size | Ø63 mm |
| Stroke | 700 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-SAID63X700S 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-SAID63X700S 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-SID63X700S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×700 | 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-SID63X700S Is Used
Excavator Linkage Control
Drives dual-action mechanical linkages on heavy equipment where equal push and pull force is required to pivot components in both directions without stroke variance.
Crane Load Sync
Uses the back rod to carry a sensor cam for precise positioning feedback on construction crane extensions, ensuring the magnet triggers legacy CS1-B/DS1-B switches accurately.
Heavy Equipment Gates
Operates dual-tool machinery gates on earthmoving equipment, leveraging the anti-rotation property of the double-rod design to maintain strict alignment under harsh jobsite conditions.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700S with the B04-SAID63X700S
To replace the discontinued B04-SID63X700S, swap it directly with the SAID63X700S, which matches the 63 mm bore, 700 mm stroke, G3/8 port, and FA/LB/TC mounting footprint. The double-rod layout is ideal when you need equal force both ways, anti-rotation stability, or a back-end sensor cam. If shifting to neighbor bores, size by the equal both-ways force: the 50 mm bore yields 825 N at 0.5 MPa, while the 80 mm bore yields 2268 N at 0.5 MPa. Because this is a 700 mm stroke, add external guides to prevent rod bending under side loads. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI replacement uses current AirTAC switches.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X700S
- ✓ 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-SID63X700S FAQ
Yes, the B04-SID63X700S is discontinued. The direct replacement is the SAID63X700S. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SID63X700S; mechanically, it is identical. The SAID replacement shares the same ISO 15552 interface, 63 mm bore, 700 mm stroke, G3/8 port, and mounting options, but adds an upgraded two Y-shaped one-way piston seal.
Because it is a double-rod cylinder, the push and pull force are equal both ways: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The bore is 63 mm, the air port is G3/8, and the rod-end thread is M16x1.5. It operates at 0.15-1.0 MPa with adjustable 30 mm cushions. Note that a plain cylinder does not hold loads on air loss; use an external rod lock or the SAIL/BSAI lock variant for held loads.
Related AirTAC SAI Cylinders
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