This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X800S, 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-SID63X800S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X800S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X800S
- 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-SID63X800S
The AirTAC B04-SID63X800S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix designates it as a construction-machinery dedicated variant, mechanically identical to the standard SID63X800S. Because a rod exits both ends on a single piston, both faces use the rod-side area, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This model is discontinued; the direct replacement is the SAID63X800S, which reuses the same G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushion.
The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate near stroke end; they do not hold loads on air loss, so an external rod lock or SAIL/BSAI variant is required for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X800S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X800S |
| Bore size | Ø63 mm |
| Stroke | 800 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-SAID63X800S 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-SAID63X800S 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-SID63X800S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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-SID63X800S Is Used
Excavator Linkage Actuation
Drives dual-tool mechanisms on heavy equipment with equal push and pull force, utilizing the double-rod geometry to prevent rotation during repetitive digging cycles.
Synchronized Material Transfer
Moves components across construction machinery assembly lines using both rod ends simultaneously, ensuring balanced load distribution without torsional deflection.
Heavy-Equipment Guide Alignment
Positions structural frames on earthmoving machinery where the rear rod acts as a sensor cam target, providing precise feedback while resisting side loads.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X800S with the B04-SAID63X800S
To replace the discontinued B04-SID63X800S, use the direct replacement SAID63X800S, which preserves the ISO 15552 mounting interface and the G3/8 port. Size both ways by verifying the equal push/pull force of 1402 N @0.5 MPa against your load, or step to neighbour bores (50mm or 80mm) if margins require. A double rod is right when you need anti-rotation, a back rod to carry a sensor cam, or to drive two tools. Reuse FA, LB, or TC mounts. The -S magnet supports legacy CS1-B/DS1-B switches. Because stroke is 800mm, add external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X800S
- ✓ 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-SID63X800S FAQ
Yes, the B04-SID63X800S is discontinued. The B04- prefix marks it as a construction-machinery dedicated variant of the base model. The direct replacement is the SAID63X800S, which shares the same ISO 15552 interface, 63mm bore, 800mm stroke, G3/8 port, and equal both ways force.
The double-rod design provides equal force both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is G3/8. It operates at 0.15-1.0 MPa with a speed of 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID63X800S
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