This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX90S, 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 SI160AX90S
The AirTAC Airtac SI160 Standard Cylinder SI160AX90S 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 SAI160AX90S, 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 → SAI160AX90S
- 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 SI160AX90S
The AirTAC SI160AX90S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 90mm stroke. Built with an extruded aluminum barrel and a SUS420J2 stainless piston rod, it delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX90S, a direct replacement matching the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for lower start-up pressure and extended life. This magnet-ready model (-S) accepts legacy CS1-B/DS1-B sensors, while the SAI family also adds SAIL and BSAI lock variants absent from the original SI line.
Airtac SI160 Standard Cylinder SI160AX90S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX90S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX90S |
| 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 SAI160AX90S 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 SAI160AX90S 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 SI160AX90S
| 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 SI160AX90S Is Used
Heavy Stamping Press
Drives heavy tooling in stamping presses where the 10053 N push force at 0.5 MPa easily overcomes die resistance and blanking loads.
Injection Molding Extraction
Extracts heavy molded parts from large injection machines, utilizing the SUS420J2 stainless rod for corrosion resistance in humid environments.
Replacing the Airtac SI160 Standard Cylinder SI160AX90S with the SAI160AX90S
To replace the discontinued SI160AX90S, order the SAI160AX90S. It drops directly into existing fixtures via the identical ISO 15552 mounting interface, matching the 160mm bore, 90mm stroke, M36x2 rod thread, and G3/4 port. Confirm your mounting accessory (LB, FA, TC, etc.) and thread option (PT, G, NPT). Because this is a 160mm bore, operating speed is 30-500 mm/s. If you need to size up or down, neighboring bores are 125mm and 200mm; at 0.5 MPa, this cylinder pushes 10053 N and pulls 9425 N. Note that a plain cylinder drifts without live air—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants. The -A rod provides SUS420J2 stainless corrosion resistance, and the -S magnet works with CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX90S
- ✓ 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 SI160AX90S FAQ
Yes, the SI160AX90S is discontinued. The direct replacement is the SAI160AX90S. It shares the identical ISO 15552 mounting interface, 160mm bore, 90mm stroke, force, and G3/4 port, fitting existing fixtures perfectly while upgrading the piston seal.
The SI160AX90S operates at 30-500 mm/s. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX90S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX90S replacement — usually within 7-8 hours.