This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X150S, 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-SID63X150S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X150S
- 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-SID63X150S
The AirTAC B04-SID63X150S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 1402 N @0.5 MPa. The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the base SID63X150S with a 63 mm bore, 150 mm stroke, and G3/8 port. This legacy SID series is discontinued and is fully replaced by the direct replacement SAID63X150S, which reuses the exact ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure.
Because both faces use the rod-side area, force is equal both ways (1962 N @0.7 MPa, 2523 N @0.9 MPa). The dual rods prevent rotation and let the back rod carry a sensor cam for the built-in -S magnet (legacy CS1-B/DS1-B switches). Note that air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding on air loss.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X150S |
| Bore size | Ø63 mm |
| Stroke | 150 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-SAID63X150S 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-SAID63X150S 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-SID63X150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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-SID63X150S Is Used
Excavator Linkage Control
Drives dual-tool mechanisms on heavy equipment with equal push/pull force, utilizing the back rod for a sensor cam to track linkage position.
Crane Extension Guidance
Uses the twin rods to prevent rotation and maintain precise alignment for telescopic sections on construction machinery frames.
Concrete Pump Actuation
Shifts heavy valves evenly in both directions, relying on the 63 mm bore's 1962 N @0.7 MPa output for reliable cycling.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150S with the B04-SAID63X150S
To replace the discontinued B04-SID63X150S, specify the SAID63X150S. It is a direct upgrade keeping the 63 mm bore, 150 mm stroke, G3/8 port, M16x1.5 rod thread, and ISO 15552 mounting dimensions (Basic, FA, LB, TC). Size both ways by checking equal force: if 1402 N @0.5 MPa is insufficient, step up to the 80 mm bore (2268 N); if oversized, step down to 50 mm (825 N). A double rod is right when you need anti-rotation or a back-end sensor cam. Keep the -S magnet for switches. For strokes >=300 mm, verify side-load limits to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X150S
- ✓ 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-SID63X150S FAQ
Yes, the B04-SID63X150S (construction-machinery dedicated variant of SID63X150S) is discontinued. The direct replacement is the SAID63X150S. It shares the identical ISO 15552 interface, bore, stroke, G3/8 port, and force, while adding an upgraded piston seal.
It features a G3/8 air port and a 20 mm rod. 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. It operates at 30-800 mm/s with 30 mm adjustable cushions at each end.
Related AirTAC SAI Cylinders
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