This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X125 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X125 in place of this model. 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-SID100X125
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 125mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X125
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125
The AirTAC B04-SID100X125 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The B04- prefix marks this as the construction-machinery dedicated variant of the base SID100X125, mechanically identical with a 100 mm bore, 125 mm stroke, G1/2 port, and M20x1.5 rod thread. This SID model is discontinued and the exact drop-in replacement is the SAID100X125, which adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the equal-both-ways force prevents rod deflection and allows the back rod to drive a second tool or sensor cam. The computed buyer insight at 0.5 MPa yields a safe working load of roughly 2209 N (60% of force) and a vertical lift capacity of about 188 kg with a 2:1 margin. This non-magnet SKU cannot accept a magnetic switch. A plain cylinder does not hold loads on air loss; the 36 mm adjustable cushions only decelerate near stroke end, so use an external rod lock or SAIL variant for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X125 |
| Bore size | Ø100 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID100X125 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The B04-SAID100X125 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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-SID100X125 Is Used
Excavator Boom Control
Uses the equal-both-ways force to precisely actuate heavy boom linkage components on construction machinery without rod deflection.
Crusher Feed Gate
Drives a dual-sided gate mechanism in aggregate processing where the second rod synchronizes an external mechanical indicator.
Paver Screed Adjuster
Provides stable anti-rotation adjustment for heavy paving screeds, utilizing the 3681 N @0.5 MPa equal force for smooth travel.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125 with the B04-SAID100X125
To replace the discontinued B04-SID100X125, specify the SAID100X125 drop-in: it matches the 100 mm bore, 125 mm stroke, G1/2 port, and ISO 15552 mounting interface without altering the manifold. Size both ways by checking the equal-both-ways force against your load; if 5153 N @0.7 MPa is excessive, step down to the 80 mm bore (3175 N @0.7 MPa), or if insufficient, step up to 125 mm (8028 N @0.7 MPa). A double rod is right when you need anti-rotation stability or must drive two mechanisms simultaneously. Mounting options include Basic, FA, LB, and TC. As this SKU lacks the -S magnet, it cannot use sensors. For this 125 mm stroke side-load is minimal, but for strokes >=300 mm ensure guide rails carry lateral loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X125
- ✓ 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-SID100X125 FAQ
Yes, the B04-SID100X125 is discontinued. The exact drop-in replacement is the SAID100X125. The B04- prefix simply marks it as the construction-machinery dedicated variant of the SID100X125, so the SAID replacement matches the 100 mm bore, 125 mm stroke, G1/2 port, and ISO 15552 mounting exactly, while adding an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The air port is G1/2. The safe working load is about 2209 N at 0.5 MPa. It cannot hold loads without live air; the 36 mm cushions only decelerate, so use an external rod lock for holding.
Related AirTAC SAI Cylinders
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