This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID32X175S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID32X175S 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-SID32X175S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 175mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID32X175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → B04-SAID32X175S
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175S
The AirTAC B04-SID32X175S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 345 N @0.5 MPa. The B04- prefix marks this as a construction-machinery dedicated variant of the base SID32X175S, mechanically identical with a 32 mm bore, 175 mm stroke, M10x1.25 rod thread, and G1/8 port. This SID model is discontinued and the exact drop-in replacement is the SAID32X175S, which reuses the same ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the equal-both-ways force yields a safe working load of about 207 N (60% of the 345 N @0.5 MPa figure) and a vertical lift capacity of roughly 18 kg with a 2:1 margin. The rear rod can carry a sensor cam to drive two tools without rotational offset. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate near stroke end; an external rod lock or pilot-operated check valve is required for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID32X175S |
| Bore size | Ø32 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID32X175S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The B04-SAID32X175S 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-SID32X175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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-SID32X175S Is Used
Excavator Valve Actuation
Drives pilot valves on heavy equipment using equal both-ways force and anti-rotation stability from the double-rod design.
Crane Boom Alignment
Positions boom extensions on construction cranes where the rear rod carries a sensor cam for precise stroke feedback.
Material Feeder Gates
Actuates dual-tool gating mechanisms on aggregate feeders, leveraging the 32 mm bore's compact ISO 15552 footprint.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175S with the B04-SAID32X175S
To replace the discontinued B04-SID32X175S, specify the SAID32X175S, which preserves the 175 mm stroke, G1/8 port, and 27 mm adjustable cushion. Size both ways by checking neighbor bores if you need more equal-both-ways force, and reuse FA, LB, or TC mounts since the ISO 15552 interface is unchanged. A double rod is right when you need anti-rotation stability or dual-tool driving. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 175 mm stroke, side-load is minimal, but for any stroke >=300 mm, ensure guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID32X175S
- ✓ 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-SID32X175S FAQ
Yes, the B04-SID32X175S is discontinued. The exact drop-in replacement is the SAID32X175S. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SID32X175S, so all physical specs like the 32 mm bore, 175 mm stroke, and G1/8 port remain identical.
Force is equal both ways due to the double-rod design: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Speed is 30-800 mm/s. The safe working load is approximately 207 N at 0.5 MPa.
Related AirTAC SAI Cylinders
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