This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X150SLB, 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 SI80X150SLB
The AirTAC SI80 Standard Air Cylinder SI80X150SLB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X150SLB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X150SLB
- 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 SI80X150SLB
The AirTAC SI80X150SLB is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 150 mm stroke. It delivers a push force of 2513 N at 0.5 MPa via its G3/8 port. The direct replacement is the SAI80X150SLB, matching the bore, stroke, force, and LB foot mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI80 Standard Air Cylinder SI80X150SLB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X150SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X150SLB |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAI80X150SLB 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 SAI80X150SLB 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 SI80X150SLB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SI80X150SLB Is Used
Press Clamping
Provides 2513 N of secure clamping force at 0.5 MPa for holding heavy sheet metal assemblies in place during automated stamping operations.
Package Diversion
Actuates heavy-duty routing gates on high-throughput conveyors, relying on the 30-800 mm/s speed range and LB foot mount for stability.
Replacing the Airtac SI80 Standard Air Cylinder SI80X150SLB with the SAI80X150SLB
To replace this SI80X150SLB, order the SAI80X150SLB. Confirm the ISO 15552 LB foot mounting, 150 mm stroke, G3/8 port, and the -S magnet for CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). Sizing both ways: an 80 mm bore gives 2513 N push at 0.5 MPa (513 kgf max at 1.0 MPa). If you need less force, a 63 mm bore offers 1559 N; for more, a 100 mm bore provides 3927 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL/BSAI lock variant. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X150SLB
- ✓ 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 SI80X150SLB FAQ
Yes, the SI80X150SLB is discontinued. The direct replacement is the SAI80X150SLB. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 150 mm stroke, G3/8 port, and LB foot mounting interface.
The G3/8 port feeds a 25 mm rod. Force output is 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X150SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X150SLB replacement — usually within 7-8 hours.