This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X25 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X25 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-SID100X25
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X25 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 25mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X25, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke25 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X25
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X25
The B04-SID100X25 is AirTAC's construction-machinery dedicated variant of the SID100X25, a double-acting double-rod ISO 15552 cylinder. The B04- prefix designates its heavy-equipment industry allocation without altering the physical specs: a 100mm bore, 25mm stroke, G1/2 port, and M20x1.5 rod thread. Because a rod exits both ends, the piston uses the rod-side annular area in each direction, making push and pull force equal at 3681 N @0.5 MPa. This model is discontinued; the exact drop-in replacement is the SAID100X25, which adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
A key double-rod benefit here is anti-rotation stability and the ability to drive two tools from one piston, while the ISO 15552 mounting interface lets you reuse existing FA, LB, or TC brackets. Based on the 3681 N @0.5 MPa rating, the computed safe working load is roughly 2209 N, and it can vertically lift about 188 kg with a 2:1 margin. Note this SKU lacks the -S magnet and cannot carry a sensor. Air cushions only decelerate near stroke end; they do not hold loads on air loss, so use an external rod lock for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X25 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X25 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X25 |
| Bore size | Ø100 mm |
| Stroke | 25 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-SAID100X25 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-SAID100X25 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-SID100X25
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×25 | 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-SID100X25 Is Used
Excavator Linkage Actuation
Provides equal push and pull force for synchronized positioning of heavy-equipment covers or linkage arms, leveraging the anti-rotation stability of the double-rod design.
Loader Attachment Shift
Drives dual mechanical stops simultaneously from one piston, ensuring parallel tool alignment on construction-machinery attachments without requiring two separate cylinders.
Heavy Equipment Clamping
Applies 3681 N of holding force in both directions for clamping thick steel plates during welding or assembly on earthmoving machinery frames.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X25 with the B04-SAID100X25
To replace the discontinued B04-SID100X25, swap it directly with the SAID100X25, matching the 100mm bore, 25mm stroke, G1/2 port, and ISO 15552 mounting dimensions. Choose a double-rod cylinder when your mechanism requires equal force both ways, anti-rotation stability, or needs to drive two separate tools from one piston. If sizing both ways, verify the 3681 N @0.5 MPa force fits your load, or step to the 125mm bore for more power. Mounting options include Basic, FA, LB, and TC styles. Because this SKU lacks the -S suffix, it cannot accept magnetic switches. For strokes >=300mm, ensure adequate side-load guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X25
- ✓ 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-SID100X25 FAQ
Yes, the B04-SID100X25 is discontinued. The exact drop-in replacement is the SAID100X25. The B04- prefix simply marks it as the construction-machinery dedicated variant; mechanically it is identical to the base SID100X25. The SAID replacement shares the same ISO 15552 interface, 100mm bore, 25mm stroke, G1/2 port, and equal both-ways force, but adds 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 rod thread is M20x1.5, and adjustable air cushions are 36mm at each end. The safe working load is approximately 2209 N. Note that air cushions only decelerate the piston and will not hold a load if air pressure is lost.
Related AirTAC SAI Cylinders
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