This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X350S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X350S 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-SID100X350S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X350S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 350mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X350S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X350S
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X350S
The AirTAC B04-SID100X350S is a discontinued double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID100X350S, mechanically identical to it. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (3681 N @0.5 MPa). The exact drop-in replacement is the SAID100X350S, retaining the same G1/2 port, M20x1.5 rod thread, and 3681 N force.
Beyond anti-rotation stability, the second rod can drive two tools or carry a sensor cam. The SAI upgrade uses a two-piece Y-shaped piston seal for low start-up pressure. Based on the 3681 N @0.5 MPa rating, the safe working load is ~2209 N, yielding a vertical lift capacity of ~188 kg with a 2:1 margin. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X350S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X350S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X350S |
| Bore size | Ø100 mm |
| Stroke | 350 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-SAID100X350S 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-SAID100X350S 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-SID100X350S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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-SID100X350S Is Used
Excavator Linkage Control
Uses the equal both-ways force to drive synchronized construction machinery linkage components without rotational drift.
Heavy Equipment Material Transfer
Employs both extending rods to push and pull heavy construction materials across a staging conveyor simultaneously.
Crusher Feed Adjustment
Leverages the dual-end design to mount a position sensor cam on the back rod for precise jaw gap adjustments.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X350S with the B04-SAID100X350S
To replace the B04-SID100X350S, swap it directly with the SAID100X350S, matching the 100mm bore, 350mm stroke, and ISO 15552 mounting (Basic, FA, LB, TC). Size both ways by checking neighboring bores (80mm or 125mm) to ensure the equal both-ways force (3681 N @0.5 MPa) fits your system. A double-rod is right when you need anti-rotation or dual-end actuation. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. For this 350mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X350S
- ✓ 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-SID100X350S FAQ
Yes, the B04-SID100X350S (construction-machinery dedicated SID100X350S) is discontinued. The exact drop-in replacement is the SAID100X350S, which shares the identical ISO 15552 interface, 100mm bore, 350mm stroke, G1/2 port, and mounting options.
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 ~2209 N, allowing a vertical lift of ~188 kg with a 2:1 margin.
Related AirTAC SAI Cylinders
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