This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX90, 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 SI160 Standard Cylinder SI160BX90
The AirTAC Airtac SI160 Standard Cylinder SI160BX90 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 90mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX90, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke90 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX90
- 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 SI160 Standard Cylinder SI160BX90
The AirTAC SI160BX90 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 90 mm stroke. It delivers 10053 N push force at 0.5 MPa and features a G3/4 air port. AirTAC replaced this legacy unit with the SAI160BX90, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for lower start-up pressure and extended life. This specific SKU lacks a magnet (-S) and cannot accept position sensors. For high-temperature environments up to 150 C, a Viton H seal option is available, and the -B suffix indicates a SUS304 stainless steel piston rod for corrosion resistance.
Airtac SI160 Standard Cylinder SI160BX90 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX90 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX90 |
| Bore size | Ø160 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160BX90 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160BX90 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160BX90
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×90 | 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 SI160 Standard Cylinder SI160BX90 Is Used
Heavy Stamp Pressing
Drives large stamping dies requiring sustained high force, utilizing the 10053 N push capacity at 0.5 MPa to form thick metal plates.
Industrial Clamp Jigs
Secures heavy fabricated steel components during welding or machining, relying on the rigid 160 mm profile barrel and SUS304 rod.
Replacing the Airtac SI160 Standard Cylinder SI160BX90 with the SAI160BX90
To replace the discontinued SI160BX90, order the SAI160BX90. Verify your existing fixture matches the ISO 15552 mounting interface and confirm the G3/4 port size. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, switch to a magnet-equipped SAI model. When sizing, consider neighboring bores: a 125 mm bore yields 6136 N at 0.5 MPa, while a 200 mm bore provides 15708 N. Note that a plain cylinder does not hold load on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also includes the SAIF self-valve option (bores 32-100) which this larger 160 mm bore lacks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX90
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160BX90 FAQ
Yes, the AirTAC SI160BX90 is discontinued. The direct replacement is the SAI160BX90. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 90 mm stroke, G3/4 port, and mounting interface, so it drops directly into existing fixtures.
This double-acting cylinder has a G3/4 air port. It generates a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa, the push force is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX90
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX90 replacement — usually within 7-8 hours.