This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID32X175, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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-SID32X175
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175 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 direct replacement is the B04-SAID32X175, 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-SAID32X175
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175
The AirTAC B04-SID32X175 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal force both ways of 345 N at 0.5 MPa. The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the base SID32X175 with a 32 mm bore, 175 mm stroke, G1/8 port, and M10x1.25 rod thread. This SKU has no -S magnet and cannot carry a sensor. As the SID line is discontinued, the direct replacement is the SAID32X175, which reuses the exact ISO 15552 mounting interface and adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
Because both faces use the identical rod-side area, push and pull forces match exactly, preventing rod drift and providing anti-rotation stability for external guides. Note that a plain cylinder does not hold loads on air loss; the adjustable 27 mm cushions only decelerate near stroke end. For held loads, use an external rod lock or the SAIL/BSAI lock variants.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID32X175 |
| 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-SAID32X175 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-SAID32X175 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175
| 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-SID32X175 Is Used
Excavator Valve Control
Drives pilot valve linkages on construction machinery where equal push and pull force ensures precise, symmetric spool shifting without single-rod push drift.
Heavy Equipment Sorting
Actuates diverter gates on aggregate conveyors, using the second rod end to mount a mechanical cam or physically mirror the motion on a parallel lane.
Crusher Tool Ejection
Ejects wedged debris from rock crusher jaws in heavy-equipment plants, relying on the 345 N equal both-ways force to retract the tool reliably under grit.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X175 with the B04-SAID32X175
To replace the discontinued B04-SID32X175, specify the SAID32X175, which matches the 32 mm bore, 175 mm stroke, G1/8 port, and basic/FA/LB/TC mountings without altering the ISO 15552 footprint. Size both ways by checking the equal push/pull force: if 345 N at 0.5 MPa is insufficient, step up to the 40 mm bore (528 N), or step down to a smaller bore if lower force is acceptable. Choose a double-rod cylinder when you need equal force in both directions, anti-rotation resistance, or a back rod to drive two tools. Since this non-magnetic SKU lacks a -S sensor slot, position sensing is impossible. For this 175 mm stroke, side-load alignment is generally manageable, but for any stroke over 300 mm, carefully support the rod to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID32X175
- ✓ 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-SID32X175 FAQ
Yes, the SID line is discontinued. The direct replacement is the SAID32X175. The B04- prefix simply marks it as a construction-machinery dedicated variant, so the SAID matches the 32 mm bore, 175 mm stroke, G1/8 port, and ISO 15552 mounting. The SAI upgrade adds a two Y-shaped one-way piston seal for longer life.
The bore is 32 mm with a G1/8 port and M10x1.25 rod thread. Being double-rod, force is equal both ways: 345 N at 0.5 MPa, 483 N at 0.7 MPa, and 621 N at 0.9 MPa. It operates at 0.15-1.0 MPa with a 27 mm adjustable cushion, but lacks a magnet for sensors.
Related AirTAC SAI Cylinders
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