This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1200SLB, 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 SI80 Standard Air Cylinder SI80X1200SLB
The AirTAC SI80 Standard Air Cylinder SI80X1200SLB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1200SLB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1200SLB
- 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 SI80 Standard Air Cylinder SI80X1200SLB
The AirTAC SI80X1200SLB is a discontinued double-acting ISO 15552 profile cylinder with a 1200 mm stroke, delivering 2513 N push force at 0.5 MPa through its G3/8 port. The direct replacement is the SAI80X1200SLB, matching the exact bore, stroke, output force, port size and LB foot mounting interface.
The SAI upgrade features a revised piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S magnet supports legacy CS1-B/DS1-B sensors, while the Viton H seal option extends heat resistance to 150 C.
Airtac SI80 Standard Air Cylinder SI80X1200SLB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1200SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1200SLB |
| Bore size | Ø80 mm |
| Stroke | 1200 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 SAI80X1200SLB 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 SAI80X1200SLB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X1200SLB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1200 | 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 SI80 Standard Air Cylinder SI80X1200SLB Is Used
Long-Stroke Material Transfer
Drives large packages 1200 mm between conveyor zones using the 2513 N push force, fitting existing LB foot mounts.
Vertical Lowering Device
Lowers 128 kg loads through the 1200 mm travel, requiring external guides to prevent rod bending on the long stroke.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1200SLB with the SAI80X1200SLB
To replace the SI80X1200SLB, order the SAI80X1200SLB and confirm the ISO 15552 interface, 80 mm bore, 1200 mm stroke, G3/8 port, LB foot mount, and -S magnet. Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. At 1200 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, an external rod lock, or a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1200SLB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X1200SLB FAQ
Yes, the SI80X1200SLB is discontinued. The direct replacement is the SAI80X1200SLB, offering the same ISO 15552 mounting interface, 80 mm bore, 1200 mm stroke, force, G3/8 port, and LB foot mount.
The G3/8 port feeds a cylinder delivering 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1200SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1200SLB replacement — usually within 7-8 hours.