This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X700, 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-SID80X700
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X700 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X700, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X700
- 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-SID80X700
The AirTAC B04-SID80X700 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal force in both directions (2268 N at 0.5 MPa). The B04- prefix marks this as the construction-machinery dedicated variant of the base SID80X700, mechanically identical with a 80mm bore, 700mm stroke, G3/8 port, and M20x1.5 rod thread. This SID series is discontinued and end-of-life. The direct replacement is the SAID80X700, which reuses the same ISO 15552 mounting interface, bore, stroke, and ports.
Because both faces use the rod-side area, push and pull forces match exactly, preventing unequal thrust in heavy-equipment mechanisms. The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot take a sensor.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X700 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X700 |
| Bore size | Ø80 mm |
| Stroke | 700 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-SAID80X700 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-SAID80X700 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-SID80X700
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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-SID80X700 Is Used
Excavator Linkage Actuation
Equal both-ways thrust and anti-rotation stability from the dual rods make this cylinder suited for synchronized positioning of heavy construction machinery linkage components.
Crusher Feed Control
The B04- construction-machinery designation fits harsh rock-crushing plants where the 700mm stroke precisely adjusts feed gates, utilizing the 36mm adjustable cushions to decelerate heavy moving masses.
Dual-Tool Material Handling
The extending back rod can drive a secondary mechanism or sensor cam on an aggregate conveyor line, leveraging the 2268 N force at 0.5 MPa to push and pull equal loads.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X700 with the B04-SAID80X700
To replace the discontinued B04-SID80X700, specify the SAID80X700; it is a direct swap retaining the ISO 15552 mounting interface, 80mm bore, 700mm stroke, and G3/8 port. When sizing both ways, verify the equal force fits your load: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. If less force is needed, the neighboring 63mm bore yields 1402 N at 0.5 MPa; if more, the 100mm bore yields 3681 N. A double-rod cylinder is right when you need anti-rotation stability or must drive two tools simultaneously from one piston. Reuse FA, LB, or TC mounts. As this is a non-magnetized SKU, you cannot mount switches. For the 700mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID80X700
- ✓ 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-SID80X700 FAQ
Yes, the AirTAC B04-SID80X700 construction-machinery dedicated double-rod cylinder is discontinued. The direct replacement is the SAID80X700. It shares the identical ISO 15552 mounting interface, 80mm bore, 700mm stroke, G3/8 port, and equal both-ways force. The B04- prefix only marks the construction variant; mechanically it is identical to the base SID80X700.
Because it is a double-rod cylinder, force is equal both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. The air port is G3/8, the rod thread is M20x1.5, and speed ranges 30-800 mm/s. It lacks a -S magnet so it cannot use sensors.
Related AirTAC SAI Cylinders
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