This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X300, 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 SID80X300
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X300, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X300
- 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 SID80X300
The AirTAC SID80X300 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. This configuration uses the rod-side area on both faces, preventing single-rod push mismatch. The bore dictates a G3/8 air port, a Ø25 mm piston rod with an M20x1.5 thread, and 36 mm adjustable air cushions at each end. This SID model is discontinued; the direct replacement is the SAID80X300, retaining the exact interface, bore, stroke, and mounting.
The SAID upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SKU lacks a magnet (-S), it cannot accept magnetic switches. Note that air cushions only decelerate near stroke end; a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID80X300 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X300 |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAID80X300 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 SAID80X300 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 SID80X300
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SID80X300 Is Used
Gripper Cam Actuation
Drives two opposing gripper jaws simultaneously via both rod ends, ensuring perfectly synchronized and equal clamping force.
Transfer Pusher
Moves workpieces between conveyor lanes with equal push and pull thrust, while the second rod mounts a mechanical cam for limit switches.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X300 with the SAID80X300
To replace the discontinued SID80X300, install the SAID80X300 directly; it preserves the ISO 15552 mounting interface, 300 mm stroke, G3/8 port, and equal-both-ways force. If resizing, compare neighbouring bores (63 mm or 100 mm) by matching the equal push/pull force to your load. A double-rod cylinder is chosen when you need anti-rotation stability, a back rod to carry a sensor cam, or to drive two tools. Mounting options include Basic, FA, LB, and TC. At 300 mm stroke, use external guides to prevent rod bending under side loads. For load holding without live air, specify a SAIL or BSAI lock variant instead of relying on the cushion.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X300
- ✓ 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 SID80X300 FAQ
Yes, the SID80X300 is discontinued. The direct replacement is the SAID80X300, which shares the same ISO 15552 interface, 80 mm bore, 300 mm stroke, G3/8 port, and mounting hardware.
Force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The air port is G3/8, the rod is Ø25 mm with an M20x1.5 thread, and speed ranges 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X300
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X300 replacement — usually within 7-8 hours.