This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X170CB, 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 SI80X170CB
The AirTAC SI80 Standard Air Cylinder SI80X170CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 170mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X170CB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke170 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X170CB
- 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 SI80X170CB
The AirTAC SI80X170CB is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 170 mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X170CB. This direct upgrade shares the exact ISO 15552 mounting interface, CB clevis mount, and cushion dimensions. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. For load holding, note that a standard cylinder drifts without air; use the SAIL or BSAI lock variants if needed.
Because this SKU lacks the -S magnet, it cannot accept a sensor. The SAI family also adds the SAIF self-valve option. Rod materials include carbon steel, SUS420J2, or SUS304.
Airtac SI80 Standard Air Cylinder SI80X170CB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X170CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X170CB |
| Bore size | Ø80 mm |
| Stroke | 170 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 SAI80X170CB 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 SAI80X170CB 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 SI80X170CB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×170 | 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 SI80X170CB Is Used
Material Diversion
Actuates heavy lane deflector gates on packaging conveyors, utilizing the 2513 N push force to reliably shift loaded pallets.
Press Ejection
Ejects formed metal or composite parts from mid-scale press dies, benefiting from the 36 mm adjustable cushion to soften end-of-stroke impact.
Replacing the Airtac SI80 Standard Air Cylinder SI80X170CB with the SAI80X170CB
To replace the discontinued SI80X170CB, order the SAI80X170CB. Verify the ISO 15552 CB clevis mounting, 80 mm bore, 170 mm stroke, and G3/8 port. This non-magnetic SKU cannot take a switch; order a -S model if sensing is required. Sizing checks: the 80 mm bore yields 2513 N push at 0.5 MPa (4523 N at 0.9 MPa). Neighbouring 63 mm gives 1559 N, and 100 mm gives 3927 N at 0.5 MPa. For load holding, the cushion only decelerates; add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variant. The SAI also offers the SAIF integrated valve (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X170CB
- ✓ 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 SI80X170CB FAQ
Yes, the SI80X170CB is discontinued. The direct replacement is the SAI80X170CB. It shares the identical ISO 15552 mounting interface, 80 mm bore, 170 mm stroke, G3/8 port, and CB clevis mount, fitting directly into existing fixtures.
The G3/8 port delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. At 0.7 MPa push is 3518 N, and 4523 N at 0.9 MPa. The theoretical maximum force is 513 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X170CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X170CB replacement — usually within 7-8 hours.