This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID32X500, 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-SID32X500
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X500 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID32X500, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → B04-SAID32X500
- 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-SID32X500
The AirTAC B04-SID32X500 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The B04- prefix marks this as AirTAC's construction-machinery dedicated variant, mechanically identical to the base SID32X500. It features a 32 mm bore, G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions at each end. This discontinued model is fully replaced by the direct replacement SAID32X500.
The SAID32X500 successor retains the exact ISO 15552 mounting interface, bore, stroke, and equal-both-ways force, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Because the second rod can drive two tools or carry a sensor cam while resisting rotation, double-rod designs excel in heavy-equipment frames. Note this non-magnet SKU cannot take switches, and air cushions only decelerate, never hold loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X500 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID32X500 |
| Bore size | Ø32 mm |
| Stroke | 500 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-SAID32X500 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-SAID32X500 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-SID32X500
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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-SID32X500 Is Used
Excavator Linkage Actuation
Drives dual-tool mechanisms on construction machinery with equal push and pull force, utilizing the second rod to prevent rotation in tight equipment frames.
Heavy-Equipment Fork Positioning
Synchronizes two opposing clamp arms on material handlers. The double-rod design ensures balanced 345 N force both ways for reliable load handling.
Synchronized Boom Gates
Operates dual counter-balanced gates on site machinery. The equal-both-ways force and 500 mm stroke provide stable, symmetric motion without needing external guides.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID32X500 with the B04-SAID32X500
To replace the discontinued B04-SID32X500, specify the SAID32X500—it is a direct swap retaining the 32 mm bore, 500 mm stroke, G1/8 port, and ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways by confirming the 345 N @0.5 MPa equal force is sufficient; if more push/pull is needed, step up to the 40 mm bore (528 N @0.5 MPa). Choose a double-rod cylinder when you need anti-rotation stability or must drive two mechanisms simultaneously. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. Finally, at 500 mm stroke, account for side-load and rod-bending by using external guides to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID32X500
- ✓ 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-SID32X500 FAQ
Yes, the B04-SID32X500 (construction-machinery dedicated SID32X500) is discontinued. The direct replacement is the SAID32X500. It shares the identical ISO 15552 interface, 32 mm bore, 500 mm stroke, G1/8 port, and equal both-ways force, but features an upgraded Y-shaped piston seal for longer life.
As a double-rod cylinder, force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The port size is G1/8. Air cushions only decelerate; use an external rod lock for load holding.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID32X500
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAID32X500 replacement — usually within 7-8 hours.