This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X600, 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-SID80X600
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X600, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X600
- 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-SID80X600
The AirTAC B04-SID80X600 is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID80X600, mechanically identical in every spec. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore is 80 mm, the piston rod is Ø25 mm with an M20x1.5 thread, and the air port is G3/8. This legacy SID model is discontinued and end-of-life. The direct replacement is the SAID80X600, sharing the same ISO 15552 mounting interface, bore, stroke, and G3/8 port. The SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because force is equal both ways, the back rod can carry a sensor cam or drive two tools simultaneously with anti-rotation stability. With no -S suffix, this SKU lacks a magnet and cannot take a magnetic switch. Note that a plain cylinder does not hold its load on air loss; the 36 mm adjustable air 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-SID80X600 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X600 |
| Bore size | Ø80 mm |
| Stroke | 600 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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-SAID80X600 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The B04-SAID80X600 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-SID80X600
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×600 | 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-SID80X600 Is Used
Excavator Control Linkage
Uses the equal both-ways force of the B04-SID80X600 to actuate heavy control surfaces on construction machinery, relying on the double rod for anti-rotation stability.
Heavy Equipment Brake Actuation
Drives two opposing brake shoes simultaneously in heavy-equipment brake systems, utilizing the dual-rod design for balanced, equal force application.
Crane Boom Alignment
Maintains boom alignment on construction cranes by carrying a sensor cam on the rear rod extension, though this specific non-S SKU requires external mechanical sensing.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X600 with the B04-SAID80X600
To replace the discontinued B04-SID80X600, drop in the SAID80X600 directly; it preserves the 80 mm bore, 600 mm stroke, G3/8 port, and ISO 15552 mounting interface without mechanical changes. When sizing both ways, verify your force requirements against the equal both-ways ratings (2268 N @0.5 MPa, 3175 N @0.7 MPa, 4082 N @0.9 MPa) and consider neighbor bores (63 mm or 100 mm) if adjusting load capacity. A double rod is right when you need equal push/pull force, anti-rotation stability, or a back rod to drive a second tool. Mounting options include Basic, FA, LB, and TC. Because this is a non-magnetized SKU (no -S), it cannot support sensing. With a 600 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID80X600
- ✓ 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-SID80X600 FAQ
Yes, the B04-SID80X600 is discontinued. The direct replacement is the SAID80X600, which shares the same ISO 15552 interface, 80 mm bore, 600 mm stroke, G3/8 port, and equal both-ways force. The B04- prefix simply marks it as the construction-machinery dedicated variant.
Being a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The air port is G3/8, the rod is Ø25 mm with an M20x1.5 thread, and it features 36 mm adjustable air cushions.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID80X600
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