This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X100LB, 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 SI80X100LB
The AirTAC SI80 Standard Air Cylinder SI80X100LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X100LB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X100LB
- 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 SI80X100LB
The AirTAC SI80X100LB is a discontinued double-acting ISO 15552 profile cylinder with an LB foot mount. Delivering 2513 N push force at 0.5 MPa through a G3/8 port, it is replaced by the SAI80X100LB. This direct upgrade matches the original 80 mm bore, 100 mm stroke, and LB mounting interface exactly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X100LB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X100LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X100LB |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAI80X100LB 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 SAI80X100LB 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 SI80X100LB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SI80X100LB Is Used
Mid-Tonnage Clamping
Secures heavy workpieces in machining fixtures using 2513 N of thrust at 0.5 MPa.
Replacing the Airtac SI80 Standard Air Cylinder SI80X100LB with the SAI80X100LB
To replace the SI80X100LB, order the SAI80X100LB. Confirm the ISO 15552 interface, 80 mm bore, 100 mm stroke, G3/8 port, and LB foot mount. Because this specific SKU lacks the -S magnet, it cannot support position sensing; order an SAI80X100LBS if switches are required. Sizing both ways: a 63 mm bore yields 1559 N [email protected], while a 100 mm bore yields 3927 N. For load holding, note a plain cylinder drifts on air loss as cushions only decelerate; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X100LB
- ✓ 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 SI80X100LB FAQ
Yes, the SI80X100LB is discontinued. The direct replacement is the SAI80X100LB, which shares the identical ISO 15552 mounting interface, 80 mm bore, 100 mm stroke, and G3/8 port.
It features a G3/8 port and delivers 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X100LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X100LB replacement — usually within 7-8 hours.