This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X900 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X900 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-SID100X900
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X900 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X900, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X900
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X900
The AirTAC B04-SID100X900 is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID100X900, mechanically identical to it. A rod exits both ends on one piston, meaning both faces use the rod-side area and push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100 mm bore, G1/2 air port, M20x1.5 rod-end thread, and 36 mm adjustable air cushions at each end. This discontinued model is fully replaced by the drop-in SAID100X900, which shares the exact same ISO 15552 mounting interface, bore, stroke, and port.
The SAID replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The double-rod design provides anti-rotation stability and allows the back rod to drive a second tool or carry a sensor cam. Based on the 3681 N @0.5 MPa force, the computed safe working load is about 2209 N (60% of force), and the vertical lift capacity is roughly 188 kg with a 2:1 margin. Note this SKU lacks the -S magnet and cannot take a magnetic switch. A plain cylinder does not hold its load on air loss; the air cushion only decelerates 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-SID100X900 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X900 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X900 |
| Bore size | Ø100 mm |
| Stroke | 900 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-SAID100X900 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-SAID100X900 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-SID100X900
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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-SID100X900 Is Used
Excavator Boom Control
Uses the equal both ways force and anti-rotation stability of the double rod to synchronize heavy boom positioning on construction machinery without twist.
Dual-Tool Actuation
Drives two opposing crushing or gripping tools simultaneously from one piston, utilizing the rear rod extension for balanced heavy-equipment automation.
Crane Load Sync
Balances vertical lift loads in crane mechanisms, relying on the 900 mm stroke and equal push/pull force to maintain steady material handling.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X900 with the B04-SAID100X900
To replace the discontinued B04-SID100X900, select the drop-in SAID100X900, which preserves the ISO 15552 mounting interface, 100 mm bore, 900 mm stroke, and G1/2 port. Size both ways by verifying the equal push/pull force of 3681 N @0.5 MPa; if less force is needed, neighbouring bores like 80 mm offer 2268 N, while upgrading to 125 mm provides 5734 N. A double rod is right when you need anti-rotation stability or want to drive two tools from one piston. Reuse FA, LB, or TC mounts directly. Because this SKU lacks the -S magnet, it cannot take a magnetic switch. For the 900 mm long stroke, add external guides to prevent rod-bending and manage side-load.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X900
- ✓ 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-SID100X900 FAQ
Yes, the B04-SID100X900 (construction-machinery dedicated variant of SID100X900) is discontinued. The exact drop-in replacement is the SAID100X900, sharing the same ISO 15552 interface, 100 mm bore, 900 mm stroke, and G1/2 port.
Force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Speed is 30-800 mm/s. The computed safe working load is about 2209 N, and vertical lift is roughly 188 kg with a 2:1 margin.
Related AirTAC SAI Cylinders
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