This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X150, 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-SID63X150
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150 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-SAID63X150, 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-SAID63X150
- 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-SID63X150
The AirTAC B04-SID63X150 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the base SID63X150 with a 63mm bore, 150mm stroke, G3/8 port, and M16x1.5 rod thread. This SKU has no -S magnet and cannot take a magnetic switch. As the SID line is discontinued, the direct replacement is the SAID63X150, sharing the same interface, force, and mounting.
The double-rod design provides anti-rotation stability and allows the back rod to drive a second tool, while ISO 15552 mounting (Basic, FA, LB, TC) ensures existing foot and flange brackets can be reused. The SAI replacement upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. A plain cylinder does not hold loads on air loss; the 30mm adjustable cushions only decelerate 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-SID63X150 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X150 |
| 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-SAID63X150 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-SAID63X150 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-SID63X150
| 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-SID63X150 Is Used
Excavator Linkage Actuation
Drives balanced push-pull mechanisms on heavy equipment with equal both-ways force, preventing sag on the return stroke.
Crane Load Stabilizer
Uses the double-rod anti-rotation property to keep crane extension arms aligned without twisting under off-center loads.
Dual-Tool Synchronized Drive
Employs both extending rods to operate two separate gripper or valve assemblies simultaneously from one piston.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X150 with the B04-SAID63X150
To replace the discontinued B04-SID63X150, specify the SAID63X150, which matches the 63mm bore, 150mm stroke, G3/8 port, and 1962 N @0.7 MPa equal-both-ways force. Because force is identical in both directions, verify your load against the 1402 N @0.5 MPa baseline, and step up to an 80mm bore if higher thrust is needed. Choose a double-rod cylinder when anti-rotation stability is required or when the rear rod must drive a secondary mechanism. Select FA, LB, or TC mountings to match your ISO 15552 interface. This SKU lacks the -S magnet, so no sensors can be fitted. For strokes of 300mm or longer, carefully manage side-load alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X150
- ✓ 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-SID63X150 FAQ
Yes, the B04-SID63X150 (construction-machinery dedicated variant of SID63X150) is discontinued. The direct replacement is the SAID63X150, which shares the identical ISO 15552 interface, 63mm bore, 150mm stroke, G3/8 port, and equal both-ways force.
Being 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. The air port is G3/8.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID63X150
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