This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X800S, 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 SID80X800S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X800S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X800S
- 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 SID80X800S
The AirTAC SID80X800S 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 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 SAID80X800S, sharing the same ISO 15552 interface, bore, stroke, and mounting. The SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because the second rod resists torsional twist, the design provides anti-rotation accuracy and lets the back rod carry a sensor cam or drive a second tool simultaneously. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold its load on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID80X800S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X800S |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAID80X800S 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 SAID80X800S 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 SID80X800S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SID80X800S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from a single piston, utilizing the equal both ways force to deliver 2268 N @0.5 MPa of cutting pressure on both strokes.
Anti-Rotation Transfer Arm
Lifts and transfers workpieces along a conveyor without rotational drift, relying on the twin rods for geometric stability over the 800 mm travel.
Symmetric Clamping Fixture
Clamps parts from both sides evenly using the G3/8 ported 80 mm bore, ensuring perfectly balanced holding force during secondary machining operations.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X800S with the SAID80X800S
To replace the discontinued SID80X800S, install the direct replacement SAID80X800S, which preserves the 80 mm bore, 800 mm stroke, G3/8 port, and ISO 15552 mounting dimensions. Size both ways by checking the equal-both-ways force: if 2268 N @0.5 MPa is insufficient, step up to the 100 mm bore (3681 N @0.5 MPa), or drop to the 63 mm bore (1402 N @0.5 MPa) if lower force is acceptable. A double rod is the right choice when you need anti-rotation stability or want to drive two tools from one piston. Reuse FA, LB, or TC mounting footprints directly. The -S magnet supports legacy CS1-B/DS1-B switches. For the 800 mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X800S
- ✓ 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 SID80X800S FAQ
Yes, the SID80X800S is discontinued. The direct replacement is the SAID80X800S, which shares the same ISO 15552 interface, 80 mm bore, 800 mm stroke, G3/8 port, and mounting options. The SAI replacement also features an upgraded piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Operating speed is 30-800 mm/s. The bore uses a G3/8 air port, a Ø25 mm rod, M20x1.5 threads, and 36 mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X800S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X800S replacement — usually within 7-8 hours.