This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X500S, 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 SID80X500S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X500S
- 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 SID80X500S
The AirTAC SID80X500S 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 model is discontinued and is replaced by the SAID80X500S direct upgrade, which retains the 80mm bore, 500mm stroke, G3/8 port, and ISO 15552 mounting interface.
The SAI replacement adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. The dual-rod design prevents rotation and lets the back rod carry a sensor cam. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SID Series Double-Rod Cylinder SID80X500S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X500S |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAID80X500S 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 SAID80X500S 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 SID80X500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SID80X500S Is Used
Equal-Force Transfer Pusher
Drives a conveyor diverter with identical push and pull force of 3175 N @0.7 MPa in both directions, ensuring stable part transfer without stroke imbalance.
Anti-Rotation Machining Fixture
Clamps a workpiece where the dual-rod architecture prevents piston rotation, keeping the M20x1.5 threaded tooling perfectly aligned during milling.
Dual-End Pallet Stopper
Uses the rear rod to trigger a legacy CS1-B/DS1-B sensor cam while the front rod halts pallets, saving space by combining actuation and feedback.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X500S with the SAID80X500S
Replace the SID80X500S directly with the SAID80X500S, matching the 80mm bore, 500mm stroke, M20x1.5 rod thread, and G3/8 port. Size both directions by equal force: if 3175 N @0.7 MPa is insufficient, step up to bore 100 (5153 N) or down to bore 63 (1962 N). Choose a double-rod cylinder when you need anti-rotation, a back-side sensor cam, or equal both-ways force. Reuse FA, LB, or TC ISO 15552 mounts. The -S magnet enables position sensing. For the 500mm stroke, use external guides to prevent rod bending under side loads. The air cushion only decelerates; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X500S
- ✓ 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 SID80X500S FAQ
Yes, the SID80X500S is discontinued. The direct replacement is the SAID80X500S, which matches the 80mm bore, 500mm stroke, G3/8 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
Force is equal both ways at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Speed is 30-800 mm/s. It operates at 0.15-1.0 MPa with a 36mm adjustable air cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X500S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X500S replacement — usually within 7-8 hours.