This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX450, 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 SI160AX450
The AirTAC Airtac SI160 Standard Cylinder SI160AX450 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX450, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX450
- 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 SI160AX450
The AirTAC SI160AX450 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 450 mm stroke. It delivers 10053 N of push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX450, a direct sharing the exact ISO 15552 mounting interface, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The -A suffix denotes a SUS420J2 stainless steel rod for corrosion resistance. Without a -S magnet, this SKU cannot accept position sensors.
Airtac SI160 Standard Cylinder SI160AX450 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX450 |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAI160AX450 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 SAI160AX450 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 SI160AX450
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SI160AX450 Is Used
Heavy Stamp Pressing
Provides the 10053 N push force at 0.5 MPa needed to actuate large mechanical stamping dies and heavy forming presses.
Mold Clamping Stations
Secures large injection mold halves or heavy fabrication jigs using the robust 160 mm bore profile barrel architecture.
Replacing the Airtac SI160 Standard Cylinder SI160AX450 with the SAI160AX450
To replace the SI160AX450, order the SAI160AX450. Verify your ISO 15552 mounting hardware (LB, FA, CA, TC), the G3/4 air port, and the M36x2 rod thread. Because this is a non-magnetic SKU, it cannot support CS1-B/DS1-B switches; add the -S suffix if sensing is required. At 0.5 MPa it pushes 10053 N and pulls 9425 N; if undersized, the 200 mm bore offers more thrust, or step down to 125 mm for lighter loads. A 450 mm stroke demands external guide rails to prevent rod bending under side loads. For load holding on air loss, add a pilot check valve or external rod lock, as cushions only decelerate; alternatively, specify the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX450
- ✓ 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 SI160AX450 FAQ
Yes, the SI160AX450 is discontinued. The direct replacement is the SAI160AX450. It shares the identical ISO 15552 mounting interface, 160 mm bore, 450 mm stroke, output force, G3/4 port, and M36x2 thread, fitting existing fixtures perfectly.
It uses a G3/4 air port. The thrust ratings are: 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 maximum theoretical force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX450
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX450 replacement — usually within 7-8 hours.