This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX170, 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 SI80BX170
The AirTAC SI80 Standard Air Cylinder SI80BX170 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 SAI80BX170, 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 → SAI80BX170
- 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 SI80BX170
The AirTAC SI80BX170 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 170 mm stroke. It delivers a push force of 2513 N and pull force of 2268 N at 0.5 MPa, operating at speeds of 30-800 mm/s via a G3/8 port. The direct replacement is the SAI80BX170, matching the bore, stroke, output force, port size, and ISO 15552 mounting interface for a seamless fixture swap.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for extended life and low start-up pressure. This specific SKU includes a SUS304 stainless steel rod for corrosion resistance but lacks a magnet, meaning it cannot accept position sensors.
Airtac SI80 Standard Air Cylinder SI80BX170 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX170 |
| 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 SAI80BX170 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 SAI80BX170 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 SI80BX170
| 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 SI80BX170 Is Used
Mid-Tonnage Pressing
Ideal for applying steady clamping or pressing force up to 2513 N in automated assembly cells, utilizing the robust 80 mm bore and 170 mm stroke.
Heavy Package Diversion
Provides the necessary reach and thrust to deflect heavy goods or pallets on a packaging line, taking advantage of the corrosion-resistant SUS304 rod.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX170 with the SAI80BX170
To replace the discontinued SI80BX170, order the SAI80BX170. Verify your existing fixture matches the ISO 15552 mounting interface dimensions, the G3/8 air port, and the M20x1.5 rod thread. Because this SKU lacks the -S magnet suffix, it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, switch to an SAI model with the magnet option and current AirTAC switches. When sizing, a neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end—so for load holding, specify the SAIL lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX170
- ✓ 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 SI80BX170 FAQ
Yes, the AirTAC SI80BX170 is discontinued. The direct replacement is the SAI80BX170. It features the same ISO 15552 mounting interface, 80 mm bore, 170 mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
This 80 mm bore cylinder uses a G3/8 air port. At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX170
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX170 replacement — usually within 7-8 hours.