This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X25S, 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 SID80X25S
The AirTAC SID Series Double-Rod Cylinder SID80X25S 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 SAID80X25S, 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 → SAID80X25S
- 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 SID80X25S
The AirTAC SID80X25S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal push and pull force of 2268 N at 0.5 MPa. Because both faces use the rod-side annular area, you never see a larger single-rod push value. This bore uses a Ø25 mm piston rod, an M20x1.5 rod-end thread, and a fixed G3/8 air port. This specific SID model is discontinued; the direct replacement is the SAID80X25S, which retains the same ISO 15552 mounting interface, 25 mm stroke, and force ratings.
The SAI replacement introduces an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. The built-in piston magnet (-S) supports legacy CS1-B/DS1-B switches. Note that a plain cylinder does not hold loads on air loss; the 36 mm adjustable air cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID80X25S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X25S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X25S |
| 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 SAID80X25S 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 SAID80X25S 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 SID80X25S
| 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 SID80X25S Is Used
Twin-Tool Synchronized Driving
Drives two separate work operations simultaneously from one piston, using both rod ends to actuate opposing stations with equal 2268 N force.
Equal-Force Transfer Pusher
Pushes and retracts workpieces on a conveyor line where identical force in both directions prevents jamming on the return stroke.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X25S with the SAID80X25S
To replace the discontinued SID80X25S, install the direct replacement SAID80X25S, which matches the ISO 15552 dimensions, G3/8 port, and 25 mm stroke exactly. When sizing both ways, verify the equal force fits your needs: this 80 mm bore delivers 2268 N at 0.5 MPa, sitting between the 63 mm bore (1402 N) and 100 mm bore (3681 N). A double-rod design is right when you need anti-rotation stability or want to drive two tools from one piston. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors. Because the stroke is under 300 mm, side-load leverage is minimal, but always confirm guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X25S
- ✓ 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 SID80X25S FAQ
Yes, the SID80X25S is discontinued. The direct replacement is the SAID80X25S, which shares the same ISO 15552 interface, 80 mm bore, 25 mm stroke, G3/8 port, and equal-both-ways force. The SAI family also adds upgraded piston seals and SAIL/BSAI lock variants.
Force is equal both ways due to the double-rod design: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. Operating speed is 30-800 mm/s. The cylinder uses a G3/8 port and features 36 mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X25S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X25S replacement — usually within 7-8 hours.