This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID32X100S, 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-SID32X100S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID32X100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → B04-SAID32X100S
- 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-SID32X100S
The AirTAC B04-SID32X100S 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 AirTAC's construction-machinery dedicated variant of the base SID32X100S, mechanically identical with a 32 mm bore, 100 mm stroke, M10x1.25 rod thread, and G1/8 port. This SID model is discontinued and the direct replacement is the SAID32X100S, which reuses the exact ISO 15552 mounting interface and adds an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life.
Because the rear rod can carry a sensor cam or drive a second tool while resisting rotation, double-rod designs excel in heavy-equipment actuation. Note that a plain cylinder does not hold loads on air loss; the 27 mm adjustable air cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X100S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID32X100S |
| Bore size | Ø32 mm |
| Stroke | 100 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-SAID32X100S 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-SAID32X100S 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-SID32X100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×100 | 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-SID32X100S Is Used
Excavator Linkage Control
Uses the equal both-ways force to drive auxiliary linkage on construction machinery, ensuring stable push and pull without single-rod push bias.
Heavy-Equipment Gate Actuation
The rear rod drives a secondary sensor cam while the front rod shifts a service gate, leveraging the double-rod layout for compact feedback.
Crane Counterweight Locking
Provides anti-rotation stability for locking pins on mobile cranes, where the B04- construction-machinery designation ensures dedicated fitment.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X100S with the B04-SAID32X100S
To replace the discontinued B04-SID32X100S, specify the SAID32X100S, which matches the 32 mm bore, 100 mm stroke, G1/8 port, and equal both-ways force. If sizing both ways, neighboring bores (40 mm or 25 mm if available) alter the force, but the 32 mm provides exactly 345 N @0.5 MPa in both directions. A double rod is right when you need anti-rotation, a back rod for a sensor cam, or dual-tool driving. Mounting options include Basic, FA, LB, and TC. The -S suffix means a magnet is present for CS1-B/DS1-B switches. For this 100 mm stroke, side-load is minimal, but for strokes >=300 mm, ensure guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID32X100S
- ✓ 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-SID32X100S FAQ
Yes, the B04-SID32X100S is discontinued. The direct replacement is the SAID32X100S. The B04- prefix simply marks it as the construction-machinery dedicated variant of the SID32X100S, and the SAID32X100S matches its ISO 15552 interface, G1/8 port, and all physical specs while adding an upgraded piston seal.
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 cylinder uses a G1/8 port and features 27 mm adjustable air cushions at each end, but these only decelerate the load and do not hold it on air loss.
Related AirTAC SAI Cylinders
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