This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X500, 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 SID80X500
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X500 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 SAID80X500, 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 → SAID80X500
- 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 SID80X500
The AirTAC SID80X500 is a double-acting double-rod ISO 15552 cylinder with a 500 mm stroke and 80 mm bore. A rod exits both ends on one piston, meaning 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 dictates a G3/8 air port, a 25 mm rod, M20x1.5 rod-end thread, and 36 mm adjustable air cushions at each end. This legacy model is discontinued; the direct replacement is the SAID80X500, which reuses the exact ISO 15552 mounting interface, bore, stroke, and porting.
The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life, while ratings remain unchanged. Because this SKU lacks the -S magnet option, it cannot accept a magnetic switch. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or the SAIL/BSAI lock variants for held loads.
Airtac SID Series Double-Rod Cylinder SID80X500 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X500 |
| 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 SAID80X500 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 SAID80X500 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 SID80X500
| 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 SID80X500 Is Used
Equal-Force Transfer
Drives a conveyor diverter with identical push and pull force of 2268 N @0.5 MPa in both directions, ensuring consistent actuation regardless of travel direction.
Dual-Tool Machining
Uses the second protruding rod to drive a secondary operation or mount a sensor cam, maximizing the 500 mm stroke workspace without extra valves.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X500 with the SAID80X500
To replace the discontinued SID80X500, install the direct replacement SAID80X500, matching the 80 mm bore, 500 mm stroke, G3/8 port, and ISO 15552 mounting footprint (Basic, FA, LB, TC, FTC, TCM1, TCM2). When sizing both ways, verify the equal both ways force of 2268 N @0.5 MPa meets your requirement, or step to neighbouring bores (63 mm or 100 mm) to scale the 1402 N or 3681 N @0.5 MPa forces. A double-rod design is right when you need equal push/pull force, anti-rotation stability, or a back rod to carry a sensor cam or drive two tools. For the 500 mm stroke, add external guides to prevent rod bending under side loads. Choose an -S magnet suffix if you need sensing, as this no-S SKU cannot take a switch.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X500
- ✓ 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 SID80X500 FAQ
Yes, the AirTAC SID80X500 is discontinued. The direct replacement is the SAID80X500, which matches the 80 mm bore, 500 mm stroke, G3/8 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
Force is equal both ways (double-rod): 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it features 36 mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X500
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X500 replacement — usually within 7-8 hours.