This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X125, 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 SID80X125
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X125
- 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 SID80X125
The AirTAC SID80X125 is a double-acting, double-rod ISO 15552 cylinder where a 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. This 80 mm bore uses a G3/8 air port, a Ø25 mm piston rod with M20x1.5 threads, and 36 mm adjustable cushions. The SID line is discontinued, so the direct replacement is the SAID80X125, sharing the same mounting interface, bore, stroke, and porting.
Because the piston has rods on both faces, it resists rotation and can drive two tools from one piston. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This non-magnetic SKU cannot take a switch. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID80X125 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X125 |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAID80X125 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 SAID80X125 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 SID80X125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SID80X125 Is Used
Synchronous Dual-Tool Drive
Drives two opposing forming heads from one piston, utilizing the equal 2268 N @0.5 MPa force on both rod ends to maintain perfectly balanced pressure.
Symmetrical Transfer Gate
Shifts a transfer gate from either end simultaneously, relying on the 36 mm adjustable cushions to decelerate the 125 mm stroke smoothly.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X125 with the SAID80X125
Replace the discontinued SID80X125 directly with the SAID80X125, reusing the exact ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2) and G3/8 port. Size both directions by the equal force: if 3175 N @0.7 MPa is insufficient, step up to the 100 mm bore, or drop to 63 mm if oversized. Select a double-rod cylinder when you need anti-rotation stability or to drive two mechanisms synchronously. This SKU lacks the -S magnet, so it cannot support sensing; add -S if you need switches. For strokes of 300 mm or longer, verify side-load bearing limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X125
- ✓ 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 SID80X125 FAQ
Yes, the SID80X125 is discontinued. The direct replacement is the SAID80X125, which matches the ISO 15552 mounting, 80 mm bore, 125 mm stroke, G3/8 port, and equal-both-ways force.
Force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The 80 mm bore uses a G3/8 port, a Ø25 mm rod, M20x1.5 threads, and operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X125
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X125 replacement — usually within 7-8 hours.