This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X142, 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 SI80X142
The AirTAC SI80 Standard Air Cylinder SI80X142 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 142mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X142, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke142 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X142
- 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 SI80X142
The AirTAC SI80X142 is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X142. This direct successor matches the exact bore, stroke, and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. Note this no-magnet SKU cannot take a sensor.
Airtac SI80 Standard Air Cylinder SI80X142 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X142 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X142 |
| Bore size | Ø80 mm |
| Stroke | 142 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 SAI80X142 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 SAI80X142 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 SI80X142
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×142 | 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 SI80X142 Is Used
Press Fit Operations
Ideal for seating bearings or pins, utilizing the 2513 N push force at 0.5 MPa to reliably press components into housings without overstressing assemblies.
Heavy Package Diversion
Acts as a robust diverting arm on high-throughput packaging lines, where the 36 mm adjustable cushion safely decelerates the 80 mm bore at stroke ends.
Replacing the Airtac SI80 Standard Air Cylinder SI80X142 with the SAI80X142
To replace the SI80X142, order the SAI80X142. Verify the ISO 15552 mounting interface, 80 mm bore, 142 mm stroke, M20x1.5 rod thread, and G3/8 port. Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors. If you need position sensing, select an SAI80X142S. The 80 mm bore offers 2513 N push at 0.5 MPa; if undersized, the 100 mm bore provides 3927 N. For load holding on air loss, note the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X142
- ✓ 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 SI80X142 FAQ
Yes, the AirTAC SI80X142 is discontinued. The direct replacement is the SAI80X142. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 80 mm bore, 142 mm stroke, 2513 N output force, G3/8 port, and mounting accessories.
The 80 mm bore uses a G3/8 port. It generates 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, and a theoretical maximum force of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Request a Quote for the SAI80X142
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X142 replacement — usually within 7-8 hours.