This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX80TC, 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 SI80BX80TC
The AirTAC SI80 Standard Air Cylinder SI80BX80TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX80TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX80TC
- 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 SI80BX80TC
The AirTAC SI80BX80TC is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 80mm stroke. Delivering 2513N push and 2268N pull at 0.5MPa via a G3/8 port, it is superseded by the SAI80BX80TC direct replacement. This upgrade shares identical ISO 15552 mounting-interface dimensions, TC trunnion mount, M20x1.5 rod thread, and force ratings, fitting existing fixtures perfectly.
The SAI successor introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU features a SUS304 stainless steel rod (-B) for corrosion resistance but lacks a magnet, meaning it cannot accept position switches. For load holding, note that air cushions only decelerate; use a pilot check valve or the SAIL/BSAI lock variants.
Airtac SI80 Standard Air Cylinder SI80BX80TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX80TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX80TC |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAI80BX80TC 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 SAI80BX80TC 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 SI80BX80TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SI80BX80TC Is Used
Stainless Rod Clamping
Ideal for washdown or corrosive fixture clamping using the SUS304 rod, providing 2513N of secure holding force at 0.5MPa.
TC Mount Diverting
The integrated TC trunnion mount handles side-load pivoting effectively for 80mm stroke package routing gates.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX80TC with the SAI80BX80TC
To replace the discontinued SI80BX80TC, order the SAI80BX80TC. Verify your ISO 15552 TC trunnion mounting interface, 80mm stroke, and G3/8 port. Because this SKU has no -S suffix, it cannot support magnetic sensors; if sensing is needed, select an SAI80X80S and use current AirTAC switches. For sizing, the 80mm bore yields 2513N push at 0.5MPa; neighbouring bores offer 1559N (63mm) or 3927N (100mm). The SUS304 rod is standard here. Remember, a standard cylinder drifts without air pressure—cushions only decelerate end-of-stroke. For dead-load holding, specify an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX80TC
- ✓ 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 SI80BX80TC FAQ
Yes, the SI80BX80TC is discontinued. The direct replacement is the SAI80BX80TC. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 80mm stroke, G3/8 port, TC mount, and 2513N force.
This double-acting cylinder features a G3/8 port and M20x1.5 rod thread. It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical maximum force of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX80TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX80TC replacement — usually within 7-8 hours.