This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX145, 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 SI160AX145
The AirTAC Airtac SI160 Standard Cylinder SI160AX145 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 145mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX145, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke145 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX145
- 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 SI160AX145
The AirTAC SI160AX145 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 145 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI160AX145. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, and port size, fitting existing fixtures perfectly.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses an SUS420J2 stainless steel rod (the -A option) and lacks a magnet, meaning it cannot accept legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX145 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX145 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX145 |
| Bore size | Ø160 mm |
| Stroke | 145 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 SAI160AX145 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 SAI160AX145 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 SI160AX145
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×145 | 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 SI160AX145 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N of push force at 0.5 MPa with stable 160 mm bore guidance.
Pallet Lift Gate
Actuates industrial lift gates handling 512 kg vertical loads, benefiting from the SUS420J2 stainless rod corrosion resistance.
Mold Clamping Station
Secures large injection molds using the 145 mm stroke, relying on external check valves since standard cushions only decelerate.
Replacing the Airtac SI160 Standard Cylinder SI160AX145 with the SAI160AX145
To replace this SI cylinder, order the SAI160AX145. Confirm the ISO 15552 mounting interface, the 145 mm stroke, the G3/4 port, and the SUS420J2 stainless rod. Because this SKU lacks a magnet (-S), it cannot support position sensing; if switches are needed, select an SAI model with the magnet option. For sizing alternatives, the neighbouring 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore offers 15708 N. A plain cylinder does not hold load without live air—the cushion only decelerates. For load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX145
- ✓ 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 SI160AX145 FAQ
Yes, the SI160AX145 is discontinued. The direct replacement is the SAI160AX145, which shares the identical ISO 15552 mounting interface, 160 mm bore, 145 mm stroke, output force, and G3/4 port.
It features a G3/4 port and delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX145
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX145 replacement — usually within 7-8 hours.