This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID100X75, 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-SID100X75
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID100X75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID100X75
- 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-SID100X75
The AirTAC B04-SID100X75 is a double-acting double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 3681 N @0.5 MPa. The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the standard SID100X75 with a 100mm bore, 75mm stroke, and G1/2 port. This legacy model is discontinued and the direct replacement is the SAID100X75, which reuses the exact same ISO 15552 mounting interface and adds an upgraded piston seal utilizing two Y-shaped one-way elements for lower start-up pressure and longer life.
Because both faces use the rod-side area, force is identical in both directions (5153 N @0.7 MPa, 6626 N @0.9 MPa). The dual-rod design prevents rotation and allows the back rod to drive a second tool or sensor cam. Note this non-magnetic SKU cannot accept position switches, and a plain cylinder will not hold a load on air loss—the air cushion only decelerates 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-SID100X75 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X75 |
| Bore size | Ø100 mm |
| Stroke | 75 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-SAID100X75 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-SAID100X75 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-SID100X75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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-SID100X75 Is Used
Excavator Linkage Control
Drives dual opposing mechanical linkages on heavy equipment with equal push and pull force, leveraging the anti-rotation properties of the double-rod design to maintain precise alignment under harsh off-highway conditions.
Heavy-Duty Material Transfer
Indexes large structural components down a construction machinery assembly line, utilizing the equal both-ways force to push and retract heavy jigs without stroke drift during normal cycling.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X75 with the B04-SAID100X75
To replace the discontinued B04-SID100X75, specify the SAID100X75 direct; it matches the 100mm bore, 75mm stroke, G1/2 port, and FA/LB/TC mounting dimensions without machine modification. Size both ways by evaluating neighboring bores (80mm or 125mm) if your application requires more or less than the equal both-ways force of 3681 N @0.5 MPa. A double-rod cylinder is the right choice when you need anti-rotation stability or must drive two mechanisms simultaneously from one piston. Because this SKU lacks the -S magnet, it cannot use magnetic switches; if sensing is required, select a -S model. For strokes of 300mm or longer, carefully manage side-load alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID100X75
- ✓ 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-SID100X75 FAQ
Yes, the B04-SID100X75 (construction-machinery dedicated variant of SID100X75) is discontinued. The direct replacement is the SAID100X75. It shares the identical ISO 15552 interface, 100mm bore, 75mm stroke, G1/2 port, and mounting, but features an upgraded piston seal for longer life.
As a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The air port is G1/2. It operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID100X75
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