This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX1690SH, 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 SI80BX1690SH
The AirTAC SI80 Standard Air Cylinder SI80BX1690SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1690mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX1690SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1690 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX1690SH
- 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 SI80BX1690SH
The AirTAC SI80BX1690SH is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. It delivers 2513 N push and 2268 N pull at 0.5 MPa, utilizing a G3/8 port and a SUS304 stainless steel rod (-B) for corrosion resistance. The -H Viton seal extends operating temperature to 0-150 C. Because the 1690 mm stroke exceeds the 1500 mm standard maximum, it is a non-standard, made-to-order unit.
Order the direct replacement SAI80BX1690SH, which matches the ISO 15552 mounting interface, bore, force, port and stroke. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80BX1690SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX1690SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX1690SH |
| Bore size | Ø80 mm |
| Stroke | 1690 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 SAI80BX1690SH 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 SAI80BX1690SH 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 SI80BX1690SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1690 | 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 SI80BX1690SH Is Used
Long-Reach Part Transfer
Moves components across wide 1690 mm machine spans, utilizing the 2513 N thrust to push heavy assemblies between stations.
High-Temp Vertical Lifting
Raises loads up to 128 kg in heated environments up to 150 C, relying on the SUS304 rod and Viton H seals for thermal stability.
Large Fixture Actuation
Actuates oversized welding or clamping fixtures where the G3/8 port and 80 mm bore provide the necessary air volume and force.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX1690SH with the SAI80BX1690SH
To replace the discontinued SI80BX1690SH, order the SAI80BX1690SH, ensuring the ISO 15552 mounting interface, 80 mm bore, 1690 mm stroke, G3/8 port, and mounting accessories match your fixture. Because 1690 mm exceeds the 1500 mm standard stroke, this is a non-standard made-to-order size; at this length, prevent rod bending and side-load damage by using external guides. If downsizing, a 63 mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100 mm bore provides 3927 N. The -B SUS304 rod and -H Viton seal (0-150 C) must be specified. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The -S magnet supports legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX1690SH
- ✓ 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 SI80BX1690SH FAQ
Yes, the SI80BX1690SH is discontinued. The direct replacement is the SAI80BX1690SH. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 1690 mm stroke, G3/8 port, and 513 kgf max force, so it fits existing fixtures directly.
This 80 mm bore cylinder uses a G3/8 air port. The thrust ratings are: 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 force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX1690SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX1690SH replacement — usually within 7-8 hours.