This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID100X80S, 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-SID100X80S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID100X80S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X80S
- 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-SID100X80S
The AirTAC B04-SID100X80S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix designates it as a construction-machinery dedicated variant, mechanically identical to the standard SID100X80S. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways (3681 N at 0.5 MPa). It features a 100mm bore, G1/2 port, M20x1.5 rod thread, and 36mm adjustable cushions. This SID model is discontinued; the direct replacement is the SAID100X80S, which retains the same interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously while resisting rotation, double-rod designs excel in heavy-equipment jigs. Note that air cushions only decelerate near stroke end; for load holding without live air, an external rod lock or pilot-operated check valve is required.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X80S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X80S |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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-SAID100X80S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The B04-SAID100X80S 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-SID100X80S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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-SID100X80S Is Used
Excavator Linkage Actuation
Drives synchronized heavy-equipment jig movements on construction machinery where equal push/pull force and anti-rotation stability are critical for positioning structural components.
Dual-Tool Synchronized Press
Uses both protruding rods to drive two separate forming tools simultaneously, ensuring perfectly balanced force distribution (3681 N at 0.5 MPa) across a heavy-duty workpiece.
External Cam Sensing Station
Leverages the rear rod extension to carry an external sensor cam, allowing construction-equipment builders to mount legacy CS1-B/DS1-B switches away from the harsh primary work zone.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X80S with the B04-SAID100X80S
To replace the discontinued B04-SID100X80S, select the SAID100X80S, which matches the 100mm bore, 80mm stroke, G1/2 port, and ISO 15552 mounting footprint (Basic, FA, LB, TC). The double-rod layout provides equal force both ways, so sizing is symmetrical; if you need less force, step down to an 80mm bore (2268 N at 0.5 MPa), or up to a 125mm bore (5734 N) for more power. Choose a double-rod cylinder when you need anti-rotation stability, external cam sensing, or synchronized dual-tool driving. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For strokes of 300mm or longer, carefully manage side-load alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X80S
- ✓ 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-SID100X80S FAQ
Yes, the B04-SID100X80S (construction-machinery dedicated variant of SID100X80S) is discontinued. The direct replacement is the SAID100X80S. It shares the same ISO 15552 mounting interface, 100mm bore, 80mm stroke, G1/2 port, and equal both-ways force, but features an upgraded piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. The air port is G1/2.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID100X80S
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