This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X75SLB, 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 SI80X75SLB
The AirTAC SI80 Standard Air Cylinder SI80X75SLB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X75SLB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X75SLB
- 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 SI80X75SLB
The AirTAC SI80X75SLB is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 75mm stroke. It delivers 2513N push force at 0.5MPa via a G3/8 port. The direct replacement is SAI80X75SLB, matching the exact interface, stroke, and force.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure and long life. The -S magnet works with CS1-B/DS1-B sensors, and the LB foot mount simplifies retrofits.
Airtac SI80 Standard Air Cylinder SI80X75SLB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X75SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X75SLB |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAI80X75SLB 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 SAI80X75SLB 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 SI80X75SLB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SI80X75SLB Is Used
Carton Diverting
Uses the 75mm stroke to push heavy corrugated cartons across a transfer line with 2513N of push force at 0.5 MPa.
Pallet Stopper
Acts as a robust pneumatic stop for inbound pallets, leveraging the LB foot mount and 80mm bore to absorb significant kinetic energy.
Press Ejection
Ejects formed metal parts from a stamping die, relying on the 36mm adjustable air cushions to decelerate the 25mm rod smoothly.
Replacing the Airtac SI80 Standard Air Cylinder SI80X75SLB with the SAI80X75SLB
To replace the SI80X75SLB, order SAI80X75SLB to keep the identical ISO 15552 LB foot mount, 75mm stroke, G3/8 port, and M20x1.5 rod thread. If sizing up, the 100mm bore yields 3927N push at 0.5MPa; if sizing down, the 63mm bore yields 1559N. This plain cylinder does not hold load without live air (the 36mm cushions only decelerate), so use a pilot check valve or SAIL/BSAI lock variant for holding. The SAI family also adds SAIF valve variants. The -S magnet enables CS1-B/DS1-B sensors (SAI uses current switches).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X75SLB
- ✓ 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 SI80X75SLB FAQ
Yes, the AirTAC SI80X75SLB is discontinued. The direct replacement is the SAI80X75SLB. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 75mm stroke, G3/8 port, LB foot mount, and 2513N force.
At 0.5 MPa it provides 2513N push and 2268N pull. At 0.7 MPa push is 3518N, and at 0.9 MPa push is 4523N. The theoretical max force is 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X75SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X75SLB replacement — usually within 7-8 hours.