This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X120, 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 SID80X120
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X120 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 120mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X120, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X120
- 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 SID80X120
The AirTAC SID80X120 is a discontinued ISO 15552 double-acting double-rod cylinder with a 120 mm stroke. A Ø25 mm rod exits both ends, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. It features a G3/8 air port, M20x1.5 rod thread, and 36 mm adjustable cushions. The direct replacement is the SAID80X120, reusing the same ISO 15552 mounting interface, bore, and stroke. The SAI upgrade uses an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Because the second rod drives an opposing tool or sensor cam, it prevents rod rotation without extra guides. Without a -S suffix, this SKU cannot take a magnetic switch. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID80X120 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X120 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X120 |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAID80X120 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 SAID80X120 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 SID80X120
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SID80X120 Is Used
Opposing Tool Drive
Drives two separate operations from one piston, utilizing the equal both-ways force to form and eject parts simultaneously.
Anti-Rotation Transfer
Transfers workpieces along a conveyor without rod twist, using the dual-rod geometry to maintain precise alignment.
Symmetric Gauging
Uses the rear rod extension to carry a sensor cam for mid-stroke position feedback, keeping the primary work area clear.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X120 with the SAID80X120
To replace the discontinued SID80X120, install the direct replacement SAID80X120, which matches the 80 mm bore, 120 mm stroke, G3/8 port, and ISO 15552 mounting. Because force is equal both ways, size both directions identically; if 3175 N @0.7 MPa is insufficient, step up to the 100 mm bore, or drop to 63 mm if oversized. Choose a double-rod cylinder when anti-rotation is needed or a back rod carries a sensor cam. Mounting options include Basic, FA, LB, and TC. This non-magnetic SKU cannot support sensors. For strokes >=300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X120
- ✓ 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 SID80X120 FAQ
Yes, the AirTAC SID80X120 is discontinued. The direct replacement is the SAID80X120, which shares the same ISO 15552 interface, 80 mm bore, 120 mm stroke, G3/8 port, and equal both-ways force.
The 80 mm bore has a G3/8 air port and a Ø25 mm rod. Because it is double-rod, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X120
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X120 replacement — usually within 7-8 hours.