This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X300S, 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 SID80X300S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X300S 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 SAID80X300S, 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 → SAID80X300S
- 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 SID80X300S
The AirTAC SID80X300S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore is 80 mm, the port is G3/8, and the rod-end thread is M20x1.5. This SID model is discontinued and the direct replacement is the SAID80X300S, which shares the same interface, bore, stroke, force, port, and mounting.
The SAID replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The double-rod design prevents rotation and lets the back rod carry a sensor cam or drive a second tool. The -S suffix means a built-in piston magnet for legacy CS1-B/DS1-B switches.
Airtac SID Series Double-Rod Cylinder SID80X300S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X300S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X300S |
| 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 SAID80X300S 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 SAID80X300S 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 SID80X300S
| 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 SID80X300S Is Used
Gripper Actuation
Drives a double-ended gripper where equal push and pull force is required for clamping and releasing parts without rotational play.
Transfer Pusher
Moves items along a conveyor using the front rod while the back rod carries a cam to trigger legacy CS1-B/DS1-B sensors at stroke ends.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X300S with the SAID80X300S
To replace the discontinued SID80X300S, use the SAID80X300S direct. It keeps the ISO 15552 mounting interface, so you can reuse Basic, FA, LB, or TC mounts without machining. Size both ways by checking the equal force: the 80 mm bore gives 2268 N @0.5 MPa both ways, while the neighboring 63 mm bore gives 1402 N and the 100 mm bore gives 3681 N. A double rod is right when you need anti-rotation, a back rod for a sensor cam, or equal push/pull. The -S magnet works with legacy CS1-B/DS1-B switches. At 300 mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X300S
- ✓ 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 SID80X300S FAQ
Yes, the SID80X300S is discontinued. The direct replacement is the SAID80X300S. It shares the same ISO 15552 interface, 80 mm bore, 300 mm stroke, G3/8 port, and mounting, but adds an upgraded piston seal.
Force is equal both ways because it is a double-rod cylinder: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Speed is 30-800 mm/s. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for holding.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X300S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X300S replacement — usually within 7-8 hours.