This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX90, 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 SI160AX90
The AirTAC Airtac SI160 Standard Cylinder SI160AX90 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 SAI160AX90, 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 → SAI160AX90
- 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 SI160AX90
The AirTAC SI160AX90 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 90 mm stroke. It delivers 10053 N push and 9425 N pull at 0.5 MPa, peaking at 2050 kgf. The direct replacement is the SAI160AX90, matching the G3/4 port, M36x2 thread, and 50 mm cushions.
This SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. The -A suffix denotes a SUS420J2 stainless rod. Lacking a magnet, this SKU cannot take a sensor.
Airtac SI160 Standard Cylinder SI160AX90 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX90 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX90 |
| 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 SAI160AX90 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 SAI160AX90 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 SI160AX90
| 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 SI160AX90 Is Used
Heavy Stamping
Drives large presses and stamping dies requiring 10053 N push force at 0.5 MPa with stable 90 mm travel.
Mold Clamping
Secures heavy injection molds on machinery, utilizing the SUS420J2 stainless rod for corrosion resistance.
Press Down Actuation
Applies 18095 N at 0.9 MPa for pressing bearings or components into heavy assemblies over a 90 mm stroke.
Replacing the Airtac SI160 Standard Cylinder SI160AX90 with the SAI160AX90
To replace the SI160AX90, order the SAI160AX90. It drops into existing fixtures via the ISO 15552 mounting interface, keeping the 160 mm bore, 90 mm stroke, G3/4 port, and 50 mm cushion. Size both ways: the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. For load holding on air loss, add an external rod lock or pilot check valve, as the cushion only decelerates. The SAI family also adds SAIL and BSAI lock variants. Choose the -S magnet version if you need CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX90
- ✓ 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 SI160AX90 FAQ
Yes, the SI160AX90 is discontinued. The direct replacement is the SAI160AX90. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 90 mm stroke, 2050 kgf max force, G3/4 port, and mounting accessories.
It features a G3/4 port. Force ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX90
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX90 replacement — usually within 7-8 hours.