This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX600S, 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 SI80BX600S
The AirTAC SI80 Standard Air Cylinder SI80BX600S 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 SAI80BX600S, 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 → SAI80BX600S
- 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 SI80BX600S
The AirTAC SI80BX600S is a discontinued double-acting ISO 15552 profile cylinder with a 600 mm stroke and a SUS304 stainless steel rod. Generating 2513 N push and 2268 pull at 0.5 MPa, it is replaced by the SAI80BX600S. This direct successor shares the exact G3/8 port, M20x1.5 thread, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI variants.
Airtac SI80 Standard Air Cylinder SI80BX600S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX600S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX600S |
| 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 SAI80BX600S 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 SAI80BX600S 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 SI80BX600S
| 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 SI80BX600S Is Used
Long-Stroke Diversion
Pushes heavy pallets across 600 mm transfer lines using the 2513 N thrust class, with the SUS304 rod resisting humid washdown environments.
Material Lowering
Lowers 100 kg+ fixtures smoothly, relying on the 36 mm adjustable air cushions to decelerate the payload near the stroke end without shock.
Storage Retrieval
Extracts totes from deep shelving racks where the extended stroke is necessary and the CS1-B/DS1-B sensors confirm end-of-travel positioning.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX600S with the SAI80BX600S
To replace the SI80BX600S, order the SAI80BX600S, confirming the ISO 15552 interface, 80 mm bore, 600 mm stroke, G3/8 port, and -S magnet. The -B rod is SUS304 stainless steel, ideal for corrosive settings. Neighbouring bores: a 63 mm yields 1559 N push at 0.5 MPa, while a 100 mm provides 3927 N. Air cushions decelerate the load but do not hold it; for drop prevention on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 600 mm, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX600S
- ✓ 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 SI80BX600S FAQ
Yes, the SI80BX600S is discontinued. The direct replacement is the SAI80BX600S. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 600 mm stroke, G3/8 port, and mounting interface.
This double-acting cylinder uses 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 at 0.9 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX600S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX600S replacement — usually within 7-8 hours.