This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X600STC, 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 SI80X600STC
The AirTAC SI80 Standard Air Cylinder SI80X600STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X600STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X600STC
- 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 SI80X600STC
The AirTAC SI80X600STC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 600 mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X600STC. This direct successor matches the exact TC trunnion mounting, M20x1.5 rod thread, and 36 mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. For load holding, the SAI family adds SAIL and BSAI lock variants the SI lacked. The -S magnet works with CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X600STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X600STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X600STC |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAI80X600STC 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 SAI80X600STC 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 SI80X600STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×600 | 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 SI80X600STC Is Used
Long-Stroke Diversion
Drives large package pushers across wide conveyor belts, utilizing the 600 mm stroke to clear pallet lanes effectively.
Heavy Fixture Actuation
Shifts heavy machining fixtures along the TC trunnion axis, absorbing end-of-stroke impacts via the 36 mm cushions.
Replacing the Airtac SI80 Standard Air Cylinder SI80X600STC with the SAI80X600STC
To replace the SI80X600STC, order the SAI80X600STC. Verify the ISO 15552 TC trunnion interface, 80 mm bore, 600 mm stroke, G3/8 port, and -S magnet for CS1-B/DS1-B switches. If downsizing, a 63 mm bore yields 1559 N; if upsizing, a 100 mm bore provides 3927 N at 0.5 MPa. For this 600 mm stroke, use an external guide to prevent rod bending from side loads. The standard cylinder does not hold load without air; use a pilot check valve or the SAIL/BSAI lock variant to prevent drift.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X600STC
- ✓ 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 SI80X600STC FAQ
Yes, the SI80X600STC is discontinued. The direct replacement is the SAI80X600STC. It shares the same ISO 15552 mounting interface, 80 mm bore, 600 mm stroke, output force, G3/8 port, and TC trunnion mount, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/8 air port. It delivers 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 of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X600STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X600STC replacement — usually within 7-8 hours.