This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX45, 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 SI160AX45
The AirTAC Airtac SI160 Standard Cylinder SI160AX45 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 45mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX45, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke45 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX45
- 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 SI160AX45
The AirTAC SI160AX45 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 45 mm stroke, delivering 10053 N push force at 0.5 MPa. It features a G3/4 port and a 40 mm SUS420J2 stainless steel piston rod. AirTAC replaced this legacy unit with the SAI160AX45, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet and cannot accept a sensor. For high-heat environments, a Viton H seal option raises the operating range to 150 C.
Airtac SI160 Standard Cylinder SI160AX45 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX45 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX45 |
| Bore size | Ø160 mm |
| Stroke | 45 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 SAI160AX45 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 SAI160AX45 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 SI160AX45
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×45 | 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 SI160AX45 Is Used
Heavy Stamping Press
Drives heavy-duty stamping and forming dies requiring 10053 N of push force at 0.5 MPa with robust 40 mm rod stability.
Large Mold Clamping
Secures large injection molds or heavy industrial fixtures, relying on the 9425 N pull force at 0.5 MPa for reliable holding.
Replacing the Airtac SI160 Standard Cylinder SI160AX45 with the SAI160AX45
To replace the SI160AX45, order the SAI160AX45 and verify your ISO 15552 mounting accessories, G3/4 port, and M36x2 rod thread. Because this specific SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, switch to a magnet-equipped SAI model. Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa, while the neighboring 125 mm bore provides 6136 N. A plain cylinder drifts on air loss since the 50 mm adjustable cushion only decelerates the load near stroke end. For secure load holding, consider an external pilot check valve or the SAIL/BSAI lock variants. The SUS420J2 rod offers superior corrosion resistance compared to standard carbon steel.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX45
- ✓ 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 SI160AX45 FAQ
Yes, the AirTAC SI160AX45 is discontinued. The direct replacement is the SAI160AX45. It shares the identical ISO 15552 mounting interface, 160 mm bore, 45 mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
The 160 mm bore uses a G3/4 port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push is 14074 N, and 18095 N at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX45
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX45 replacement — usually within 7-8 hours.