This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X125S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X125S 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-SID100X125S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125S 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-SAID100X125S, 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-SAID100X125S
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125S
The AirTAC B04-SID100X125S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, generating equal force in both directions (3681 N at 0.5 MPa). The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the standard SID100X125S with a 100mm bore, 125mm stroke, G1/2 port, and M20x1.5 rod thread. This legacy SID model is discontinued and replaced by the SAID100X125S.
The SAID drop-in replacement shares the exact ISO 15552 mounting interface, adjustable 36mm cushions, and speed range of 30-800 mm/s, while adding an upgraded two Y-shaped one-way piston seal for lower start-up pressure. The dual-rod design prevents rotation and can drive two tools simultaneously. For sizing, the 3681 N force at 0.5 MPa yields a safe working load of 2209 N and a vertical lift capacity of 188 kg with a 2:1 margin.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X125S |
| 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-SAID100X125S 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-SAID100X125S 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-SID100X125S
| 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-SID100X125S Is Used
Excavator Linkage Control
Equal-both-ways thrust drives synchronized counter-balanced mechanisms on heavy construction equipment without stroke deflection.
Crusher Feed Alignment
Dual rods resist torsional side-loads when positioning heavy aggregate conveyors, ensuring precise material flow into crushers.
Loader Attachment Actuation
The back rod simultaneously operates a secondary sensor cam or valve, coordinating dual tool actions on heavy machinery builds.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X125S with the B04-SAID100X125S
Replace the discontinued B04-SID100X125S directly with the SAID100X125S, reusing your existing FA, LB, or TC mounts thanks to the shared ISO 15552 interface. The double-rod layout provides equal push/pull forces of 3681 N at 0.5 MPa, making it ideal when symmetrical thrust is needed; if less force is required, step down to the 80mm bore, or step up to 125mm for higher loads. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For this 125mm stroke, side-load alignment is manageable, but for any stroke over 300mm, carefully guide the load to prevent rod binding. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X125S
- ✓ 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-SID100X125S FAQ
Yes, the B04-SID100X125S (construction-machinery dedicated SID100X125S) is discontinued. The exact drop-in replacement is the SAID100X125S, sharing the same 100mm bore, 125mm stroke, G1/2 port, and ISO 15552 mounting interface, but featuring an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. The bore dictates a G1/2 air port, a 25mm rod, and M20x1.5 rod threads. It operates at 30-800 mm/s with 36mm adjustable cushions.
Related AirTAC SAI Cylinders
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