This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X450S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X450S 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-SID100X450S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X450S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 450mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X450S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X450S
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X450S
The AirTAC B04-SID100X450S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix designates it as a construction-machinery dedicated variant of the base SID100X450S, mechanically identical in every spec. A rod exits both ends of the extruded aluminum barrel on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 3681 N @0.5 MPa. The bore is 100 mm, the port is G1/2, and the rod thread is M20x1.5. This model is discontinued.
The exact drop-in replacement is the SAID100X450S, which reuses the same ISO 15552 mounting interface, 450 mm stroke, and adjustable 36 mm cushions. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The rear rod can carry a sensor cam or drive a second tool simultaneously. Computed buyer insight: safe working load is ~2209 N (60% of 3681 N @0.5 MPa), yielding a vertical lift capacity of ~188 kg with a 2:1 margin.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X450S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X450S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X450S |
| Bore size | Ø100 mm |
| Stroke | 450 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-SAID100X450S 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-SAID100X450S 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-SID100X450S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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-SID100X450S Is Used
Excavator Linkage Actuation
Drives synchronized dual-tool mechanisms on heavy equipment where equal push and pull force is mandatory for balanced linkage movement.
Crusher Feed Sync
Simultaneously operates dual feed gates on construction-machinery crushers using the rear rod as a secondary drive output.
Heavy Material Transfer
Lifts and lowers structural components with anti-rotation stability, safely handling up to 188 kg vertical loads with a 2:1 margin.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X450S with the B04-SAID100X450S
To replace the discontinued B04-SID100X450S, specify the SAID100X450S directly—it is a drop-in swap retaining the G1/2 port, M20x1.5 thread, and 36 mm cushions. Size both ways by checking neighbor bores (80 mm or 125 mm) if you need to adjust the equal both-ways force. Choose a double-rod cylinder when you need anti-rotation stability or synchronous driving of two tools. Mounting options include FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. For this 450 mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder does not hold loads on air loss; for held loads use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X450S
- ✓ 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-SID100X450S FAQ
Yes, the B04-SID100X450S is discontinued. The exact drop-in replacement is the SAID100X450S. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SID100X450S, so the SAID100X450S matches it exactly on bore, stroke, G1/2 port, and ISO 15552 mounting interface.
Force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It operates at 0.15-1.0 MPa with a proof pressure of 1.5 MPa, and temperature range is -20 to +70 C. Speed is 30-800 mm/s, the port is G1/2, and it features 36 mm adjustable cushions at each end. The air cushion only decelerates near stroke end and does not hold loads on air loss.
Related AirTAC SAI Cylinders
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