This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID80X100, 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-SID80X100
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID80X100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAID80X100
- 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-SID80X100
The AirTAC B04-SID80X100 is a discontinued ISO 15552 double-acting double-rod cylinder where the B04- prefix marks it as a construction-machinery dedicated variant, mechanically identical to the standard SID80X100. A rod exits both ends on one piston, meaning both faces use the rod-side area to deliver equal push and pull force (2268 N at 0.5 MPa). It features a 25 mm rod, M20x1.5 thread, G3/8 port, and 36 mm adjustable cushions.
As this model is end-of-life, the direct replacement is the SAID80X100. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Because the second rod can drive two tools simultaneously or carry a sensor cam while resisting rotation, it offers high design gain. Note this non-magnetic SKU cannot take a switch, and air cushions only decelerate; use an external rod lock for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X100 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID80X100 |
| Bore size | Ø80 mm |
| Stroke | 100 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-SAID80X100 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-SAID80X100 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-SID80X100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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-SID80X100 Is Used
Excavator Linkage Control
Drives dual-arm mechanisms on heavy equipment where equal push and pull force is required to maintain precise positioning under harsh construction site conditions.
Synchronized Material Transfer
Simultaneously pushes two separate workpieces from opposite ends of a construction machinery assembly line, ensuring perfectly timed dual-tool actuation.
Anti-Rotation Mast Guidance
Provides inherent rotational stability for heavy lifting attachments on builders' machinery, preventing twist without requiring external linear guides.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID80X100 with the B04-SAID80X100
To replace the discontinued B04-SID80X100, specify the direct replacement SAID80X100, which retains the exact ISO 15552 interface, 80 mm bore, 100 mm stroke, G3/8 port, and 25 mm rod. Size both ways by checking the equal push/pull force against neighbouring bores: the 63 mm bore yields 1402 N, while the 100 mm bore yields 3681 N at 0.5 MPa. A double-rod design is right when you need anti-rotation stability or must drive two mechanisms from one cylinder. Mounting options include Basic, FA, LB, and TC. As this SKU lacks the -S suffix, it cannot accept magnetic switches. For stroke lengths of 300 mm or greater, carefully verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID80X100
- ✓ 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-SID80X100 FAQ
Yes, the B04-SID80X100 (construction-machinery dedicated variant of SID80X100) is discontinued. The direct replacement is the SAID80X100, which shares the identical ISO 15552 interface, bore, stroke, and G3/8 port. The SAI family also adds upgraded piston seals and SAIL/BSAI lock variants.
Being 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. It uses a G3/8 port, operates at 0.15-1.0 MPa, runs at 30-800 mm/s, and has a 36 mm cushion. It cannot hold a load on air loss; use an external rod lock.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID80X100
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