This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X25, 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 SID Series Double-Rod Cylinder SID80X25
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X25 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 25mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X25, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke25 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X25
- 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 SID Series Double-Rod Cylinder SID80X25
The AirTAC SID80X25 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding exactly equal force in both directions (2268 N at 0.5 MPa). This 80 mm bore unit features a 25 mm rod, M20x1.5 thread, and a G3/8 port. The SID line is discontinued; the direct replacement is the SAID80X25, which reuses the exact ISO 15552 mounting interface and porting.
The SAI upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this non-magnetic SKU cannot accept a sensor switch, and the air cushion only decelerates; it will not hold a load without air.
Airtac SID Series Double-Rod Cylinder SID80X25 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X25 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X25 |
| Bore size | Ø80 mm |
| Stroke | 25 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 SAID80X25 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 SAID80X25 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID80X25
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×25 | 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 SID Series Double-Rod Cylinder SID80X25 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously with equal push and pull force, ensuring balanced material removal without requiring a second cylinder.
Symmetrical Transfer Gate
Operates a bi-directional diverting gate on a packaging line where the extended rod end mounts a mechanical cam, keeping the primary working stroke unobstructed.
Anti-Rotation Lift Platform
Raises and lowers a guided work platform where the twin rods prevent torsional twist and binding, providing stable vertical positioning under offset loads.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X25 with the SAID80X25
To replace the discontinued SID80X25, specify the SAID80X25 to retain the identical ISO 15552 mounting footprint, G3/8 port, and 25 mm stroke. Because force is equal both ways, size it by checking the 2268 N @0.5 MPa rating against your load; if you need more force, step up to the 100 mm bore. A double-rod design is the right choice when you need anti-rotation stability or need to drive a tool from both ends. Mounting options include FA, LB, and TC brackets. As this SKU lacks the -S magnet, it cannot use sensors; add the -S suffix if switch tracking is required. For this 25 mm stroke, side-load bending moments are negligible.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X25
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID80X25 FAQ
Yes, the SID80X25 is discontinued. The direct replacement is the SAID80X25. It shares the same ISO 15552 mounting interface, 80 mm bore, 25 mm stroke, G3/8 port, and equal both-ways force, while adding an upgraded two-piece Y-shaped piston seal.
Because it is a double-rod cylinder, force is equal in both directions: 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. Note that the air cushion only decelerates the load near stroke end; it does not hold the load on air loss, so an external rod lock is needed for holding.
Request a Quote for the SAID80X25
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X25 replacement — usually within 7-8 hours.