This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X45, 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 SI160X45
The AirTAC Airtac SI160 Standard Cylinder SI160X45 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 SAI160X45, 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 → SAI160X45
- 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 SI160X45
The AirTAC SI160X45 is a discontinued double-acting ISO 15552 profile cylinder. Generating a push force of 10053 N at 0.5 MPa, it features a 160 mm bore, 45 mm stroke, and a G3/4 air port. AirTAC replaced this legacy unit with the SAI160X45, a direct replacement sharing the exact ISO 15552 mounting interface, output force, and port size.
The SAI160X45 upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. For sensing, this specific SI SKU lacks a magnet and cannot accept a CS1-B/DS1-B switch. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160X45 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X45 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X45 |
| 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 SAI160X45 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 SAI160X45 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 SI160X45
| 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 SI160X45 Is Used
Heavy Press Clamping
Delivers 10053 N of push force at 0.5 MPa to secure large metal castings or heavy fabrication components during machining and press operations.
Industrial Stamping
Short 45 mm stroke provides rapid, high-impact actuation for stamping and forming thick gauge materials within automated production lines.
Pallet Positioning
Robust 160 mm bore and M36x2 rod thread handle heavy-duty pallet stops and positioning gates in high-capacity logistics conveyors.
Replacing the Airtac SI160 Standard Cylinder SI160X45 with the SAI160X45
To replace the SI160X45, order the SAI160X45. Verify the ISO 15552 mounting interface, 45 mm stroke, and G3/4 port (PT/G/NPT thread options). Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. If sizing up or down, note the 125 mm bore offers 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. With a 45 mm stroke, side-load risks are minimal, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X45
- ✓ 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 SI160X45 FAQ
Yes, the SI160X45 is discontinued. The direct replacement is the SAI160X45. It shares the same ISO 15552 mounting interface, 160 mm bore, 45 mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 air port. Force 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 theoretical max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X45
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X45 replacement — usually within 7-8 hours.